Merged openproject-reporting_engine into openproject

modules/reporting_engine/README.md

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+ReportingEngine
+===============
+
+The ReportingEngine is a Rails engine containing base functionality to create customized database reports. A report consists of filters and grouping criteria, each of which selects an attribute to be used for filtering and grouping. It provides base filter and grouping classes to be used for adding new filters. It also adds some base widgets to visually represent the created reports.
+
+This engine is mainly used in the [OpenProject Reporting plugin](https://www.openproject.org/projects/plugin-reporting), allowing to create customized cost reports when the [OpenProject Costs plugin](https://www.openproject.org/projects/costs-plugin) is used to track projects costs.
+
+Requirements
+------------
+
+The ReportingEngine requires Rails 3.2 and is compatible with MySQL or PostgreSQL. MySQL versions 5.6.0 - 5.6.12 and 5.7.0 - 5.7.1 are not supported since they contain a bug leading to wrong report results under certain circumstances.
+
+Installation
+------------
+
+To use the ReportingEngine, add the following line to your `Gemfile`:
+
+`gem "reporting_engine", git: "https://github.com/finnlabs/reporting_engine.git", :branch => "dev"`
+
+If you are running OpenProject, add the above line to the `Gemfile.plugins` in your OpenProject installation folder instead.
+
+Afterwards, run:
+
+`bundle install`
+
+
+Deinstallation
+--------------
+
+Remove the line
+
+`gem "reporting_engine", git: "https://github.com/finnlabs/reporting_engine.git", :branch => "dev"`
+
+from your `Gemfile` or the `Gemfile.plugins` in your OpenProject installation and run:
+
+`bundle install`
+
+
+Bug Reporting
+-------------
+
+If you find any bugs, you can create a bug ticket at
+
+https://www.openproject.org/projects/plugin-reportingengine
+
+
+Development
+-----------
+
+To contribute, you can create pull request on the official repository at
+`https://github.com/finnlabs/reporting_engine`
+
+
+Credits
+-------
+
+Special thanks go to
+
+* Deutsche Telekom AG (opensource@telekom.de) for project sponsorship
+
+Licence
+-------
+
+Copyright (C) 2010 - 2015 OpenProject Foundation (OPF)
+
+This plugin is licensed under the GNU GPL v3. See doc/COPYRIGHT.md and doc/GPL.txt for details.

modules/reporting_engine/config/locales/crowdin/ar.yml

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+ar:
+  description_drill_down: "أظهر التفاصيل"
+  label_click_to_edit: "اضغط للتعديل."
+  label_columns: "الأعمدة"
+  label_count: "العد"
+  label_filter: "عامل التصفية"
+  label_filter_add: "إضافة عامل تصفية"
+  label_filter_plural: "عوامل التصفية"
+  label_greater: ">"
+  label_group_by: "مجموعة بحسب"
+  label_group_by_add: "أضِف مجموعة بحسب السّمة"
+  label_inactive: "<<غير فعّال>>"
+  label_less: "<"
+  label_no: "لا"
+  label_none: "(لا توجد بيانات)"
+  label_progress_bar_explanation: "جاري إعداد التقرير..."
+  label_really_delete_question: "هل أنت متأكد من أنك تريد حذف هذا التقرير؟"
+  label_report: "التقرير"
+  label_rows: "الصفوف"
+  label_saving: "جاري الحفظ ..."
+  label_sum: "المجموع"
+  label_yes: "نعم"
+  load_query_question: "سيكون للتقرير %{size} من خلايا الجدول، وقد يستغرق بعض الوقت للتقديم. هل ما زلت تريد المحاولة لتقديمه؟"
+  units: "الوحدات"
+  validation_failure_date: "ليس تاريخًا صالحًا"
+  validation_failure_integer: "ليس عددًا صحيحًا صالحًا"
+  reporting:
+    group_by:
+      selected_columns: "Selected columns"
+      selected_rows: "Selected rows"

modules/reporting_engine/config/locales/crowdin/ca.yml

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+ca:
+  description_drill_down: "Mostra els detalls"
+  label_click_to_edit: "Feu clic per editar."
+  label_columns: "Columnes"
+  label_count: "Recompte"
+  label_filter: "Filtre"
+  label_filter_add: "Afegir filtre"
+  label_filter_plural: "Filtres"
+  label_greater: ">"
+  label_group_by: "Agrupa per"
+  label_group_by_add: "Afegir grup per atribut"
+  label_inactive: "«inactiu»"
+  label_less: "<"
+  label_no: "No"
+  label_none: "(no hi ha dades)"
+  label_progress_bar_explanation: "Generant informe..."
+  label_really_delete_question: "Esteu segur que voleu suprimir aquest informe?"
+  label_report: "Informe"
+  label_rows: "Files"
+  label_saving: "Desant ..."
+  label_sum: "Suma"
+  label_yes: "Si"
+  load_query_question: "L'informe tindrà %{size} de cel·les i pot trigar algun temps per generar-se. Encara voleu intentar la generació?"
+  units: "Unitats"
+  validation_failure_date: "no és una data vàlida"
+  validation_failure_integer: "no és un enter vàlid"
+  reporting:
+    group_by:
+      selected_columns: "Selected columns"
+      selected_rows: "Selected rows"

modules/reporting_engine/config/locales/crowdin/da.yml

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+da:
+  description_drill_down: "Vis detaljer"
+  label_click_to_edit: "Klik for at redigere."
+  label_columns: "Kolonner"
+  label_count: "Antal"
+  label_filter: "Filter"
+  label_filter_add: "Tilføj filter"
+  label_filter_plural: "Filtre"
+  label_greater: ">"
+  label_group_by: "Gruppér efter"
+  label_group_by_add: "Tilføj Gruppér efter-attribut"
+  label_inactive: "«inaktiv»"
+  label_less: "<"
+  label_no: "Nej"
+  label_none: "(ingen data)"
+  label_progress_bar_explanation: "Genererer rapport..."
+  label_really_delete_question: "Sikker på, at du ønsker denne rapport slettet?"
+  label_report: "Rapport"
+  label_rows: "Rækker"
+  label_saving: "Gemmer ..."
+  label_sum: "Sum"
+  label_yes: "Ja"
+  load_query_question: "Rapporten vil indeholde %{size} celler og kan tage nogen tid at danne. Fortsæt alligevel?"
+  units: "Enheder"
+  validation_failure_date: "er en ugyldig dato"
+  validation_failure_integer: "er et ugyldigt heltal"
+  reporting:
+    group_by:
+      selected_columns: "Selected columns"
+      selected_rows: "Selected rows"

modules/reporting_engine/config/locales/crowdin/de.yml

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+de:
+  description_drill_down: "Details anzeigen"
+  label_click_to_edit: "Zum Bearbeiten hier klicken."
+  label_columns: "Spalten"
+  label_count: "Anzahl"
+  label_filter: "Filter"
+  label_filter_add: "Filter hinzufügen"
+  label_filter_plural: "Filter"
+  label_greater: ">"
+  label_group_by: "Gruppieren nach"
+  label_group_by_add: "Gruppierung hinzufügen"
+  label_inactive: "«nicht aktiviert»"
+  label_less: "<"
+  label_no: "Nein"
+  label_none: "(Keine Angabe)"
+  label_progress_bar_explanation: "Report wird erstellt ..."
+  label_really_delete_question: "Diesen Report wirklich löschen?"
+  label_report: "Report"
+  label_rows: "Zeilen"
+  label_saving: "Speichern ..."
+  label_sum: "Summe"
+  label_yes: "Ja"
+  load_query_question: "Der Report wird %{size} Tabellen-Zellen haben, was sehr rechenintensiv sein kann. Wollen Sie dennoch versuchen, den Report durch zu führen?"
+  units: "Einheiten"
+  validation_failure_date: "ist kein gültiges Datum"
+  validation_failure_integer: "ist keine ganze Zahl"
+  reporting:
+    group_by:
+      selected_columns: "Ausgewählte Spalten"
+      selected_rows: "Ausgewählte Zeilen"

modules/reporting_engine/config/locales/crowdin/es-ES.yml

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+es:
+  description_drill_down: "Ver detalles"
+  label_click_to_edit: "Clic para editar."
+  label_columns: "Columnas"
+  label_count: "Contador"
+  label_filter: "Filtro"
+  label_filter_add: "Añadir filtro"
+  label_filter_plural: "Filtros"
+  label_greater: ">"
+  label_group_by: "Agrupar por"
+  label_group_by_add: "Añadir atributo de agrupación"
+  label_inactive: "«inactivo»"
+  label_less: "<"
+  label_no: "No"
+  label_none: "(sin datos)"
+  label_progress_bar_explanation: "Generando informe..."
+  label_really_delete_question: "¿Está seguro que desea eliminar este informe?"
+  label_report: "Informe"
+  label_rows: "Filas"
+  label_saving: "Guardando ..."
+  label_sum: "Suma"
+  label_yes: "Sí"
+  load_query_question: "El informe tendrá %{size} celdas de tabla y puede tardar algún tiempo en generarse. ¿Desea generarlo de todas formas?"
+  units: "Unidades"
+  validation_failure_date: "no es una fecha válida"
+  validation_failure_integer: "no es un entero válido"
+  reporting:
+    group_by:
+      selected_columns: "Columnas seleccionadas"
+      selected_rows: "Filas seleccionadas"

modules/reporting_engine/config/locales/crowdin/et.yml

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+et:
+  description_drill_down: "Näita üksikasju"
+  label_click_to_edit: "Muutmiseks kliki."
+  label_columns: "Veerud"
+  label_count: "Arv"
+  label_filter: "Filter"
+  label_filter_add: "Lisa filter"
+  label_filter_plural: "Filtrid"
+  label_greater: ">"
+  label_group_by: "Grupeeri"
+  label_group_by_add: "Lisa grupeerimise omadus"
+  label_inactive: "«mitteaktiivne»"
+  label_less: "<"
+  label_no: "Ei"
+  label_none: "(andmeid pole)"
+  label_progress_bar_explanation: "Aruande loomine..."
+  label_really_delete_question: "Oled sa kindel, et soovid seda aruannet kustutada?"
+  label_report: "Aruanne"
+  label_rows: "Read"
+  label_saving: "Salvestamine ..."
+  label_sum: "Summa"
+  label_yes: "Jah"
+  load_query_question: "Aruandes on %{size} tabeli lahtrit ja selle loomine võib veidi aega võtta. Kas sa siiski soovid seda luua?"
+  units: "Ühikud"
+  validation_failure_date: "pole korrektne kuupäev"
+  validation_failure_integer: "pole täisarv"
+  reporting:
+    group_by:
+      selected_columns: "Selected columns"
+      selected_rows: "Selected rows"

modules/reporting_engine/config/locales/crowdin/fi.yml

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+fi:
+  description_drill_down: "Näytä tiedot"
+  label_click_to_edit: "Muokkaa napsauttamalla tätä."
+  label_columns: "Sarakkeet"
+  label_count: "Määrä"
+  label_filter: "Suodata"
+  label_filter_add: "Lisää suodatin"
+  label_filter_plural: "Suodattimet"
+  label_greater: ">"
+  label_group_by: "Ryhmittely"
+  label_group_by_add: "Lisää ryhmittely-valinta"
+  label_inactive: "«passiivinen»"
+  label_less: "<"
+  label_no: "Ei"
+  label_none: "(ei tietoja)"
+  label_progress_bar_explanation: "Luodaan raporttia..."
+  label_really_delete_question: "Haluat varmasti poistaa tämän raportin?"
+  label_report: "Raportti"
+  label_rows: "Rivit"
+  label_saving: "Tallennetaan..."
+  label_sum: "Yhteensä"
+  label_yes: "Kyllä"
+  load_query_question: "Raportissa tulee olemaan %{size} solua ja sen luominen voi kentää jonkin aikaa. Haluatko silti kokeilla sen luomista?"
+  units: "Yksiköt"
+  validation_failure_date: "ei ole kelvollinen päivämäärä"
+  validation_failure_integer: "ei ole kelvollinen kokonaisluku"
+  reporting:
+    group_by:
+      selected_columns: "Valitut sarakkeet"
+      selected_rows: "Valitut rivit"

modules/reporting_engine/config/locales/crowdin/fr.yml

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+fr:
+  description_drill_down: "Afficher les détails"
+  label_click_to_edit: "Cliquez pour modifier."
+  label_columns: "Colonnes"
+  label_count: "Décompte"
+  label_filter: "Filtre"
+  label_filter_add: "Ajouter un filtre"
+  label_filter_plural: "Filtres"
+  label_greater: ">"
+  label_group_by: "Grouper par"
+  label_group_by_add: "Ajoutez l'attribut \"Grouper par\""
+  label_inactive: "« inactif »"
+  label_less: "<"
+  label_no: "Non"
+  label_none: "(aucune donnée)"
+  label_progress_bar_explanation: "Rapport en cours de génération..."
+  label_really_delete_question: "Êtes-vous sûr de vouloir supprimer ce rapport ?"
+  label_report: "Rapport"
+  label_rows: "Lignes"
+  label_saving: "Enregistrement en cours …"
+  label_sum: "Total"
+  label_yes: "Oui"
+  load_query_question: "Le rapport contiendra un tableau de %{size} cellules et peut prendre un certain temps à être généré. Voulez-vous quand même le générer ?"
+  units: "Unités"
+  validation_failure_date: "n'est pas une date valide"
+  validation_failure_integer: "n'est pas un nombre entier valide"
+  reporting:
+    group_by:
+      selected_columns: "Colonnes sélectionnées"
+      selected_rows: "Lignes sélectionnées"

modules/reporting_engine/config/locales/crowdin/hr.yml

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+hr:
+  description_drill_down: "Prikaži detalje"
+  label_click_to_edit: "Kliknite za uređivanje."
+  label_columns: "Stupci"
+  label_count: "Zbroji"
+  label_filter: "Filter"
+  label_filter_add: "Dodaj filter"
+  label_filter_plural: "Filteri"
+  label_greater: ">"
+  label_group_by: "Grupiraj po"
+  label_group_by_add: "Dodaj grupu - po Atributu"
+  label_inactive: "«neaktivan»"
+  label_less: "<"
+  label_no: "Ne"
+  label_none: "(nema podataka)"
+  label_progress_bar_explanation: "Generiranje izvješća..."
+  label_really_delete_question: "Da li ste sigurni da želite izbrisati ovo izvješće?"
+  label_report: "Izvješće"
+  label_rows: "Redci"
+  label_saving: "Spremanje ..."
+  label_sum: "Zbroj"
+  label_yes: "Da"
+  load_query_question: "Izvješće će imati %{size} veličinu tablice te će biti potrebno određeno vrijeme za prikaz. Da li želite prikazati ga i dalje?"
+  units: "Jedinice"
+  validation_failure_date: "nije valjan datum"
+  validation_failure_integer: "nije valjan cijeli broj"
+  reporting:
+    group_by:
+      selected_columns: "Selected columns"
+      selected_rows: "Selected rows"

modules/reporting_engine/config/locales/crowdin/hu.yml

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+hu:
+  description_drill_down: "Részletek megjelenítése"
+  label_click_to_edit: "Szerkesztéséhez kattintson ide."
+  label_columns: "Oszlopok"
+  label_count: "Darabszám"
+  label_filter: "Szűrő"
+  label_filter_add: "Szűrő hozzáadása"
+  label_filter_plural: "Szűrők"
+  label_greater: ">"
+  label_group_by: "Csoportosítás"
+  label_group_by_add: "Csoportosítási tulajdonság hozzáadása"
+  label_inactive: "«inaktív»"
+  label_less: "<"
+  label_no: "Nem"
+  label_none: "(nincs adat)"
+  label_progress_bar_explanation: "Jelentés létrehozása..."
+  label_really_delete_question: "Biztosan törli ezt a jelentést?"
+  label_report: "Jelentés"
+  label_rows: "Sorok"
+  label_saving: "Mentés..."
+  label_sum: "Össz."
+  label_yes: "Igen"
+  load_query_question: "A jelentés %{size} cellát fog tartalmazni, így eltarthat egy ideig az elkészítése. Továbbra is el szeretné készíteni?"
+  units: "Egységek"
+  validation_failure_date: "nem érvényes dátum"
+  validation_failure_integer: "nem érvényes egész szám"
+  reporting:
+    group_by:
+      selected_columns: "A kijelölt oszlopok"
+      selected_rows: "A kijelölt sorok"

modules/reporting_engine/config/locales/crowdin/it.yml

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+it:
+  description_drill_down: "Mostra dettagli"
+  label_click_to_edit: "Premi per modificare."
+  label_columns: "Colonne"
+  label_count: "Conteggio"
+  label_filter: "Filtro"
+  label_filter_add: "Aggiungi filtro"
+  label_filter_plural: "Filtri"
+  label_greater: ">"
+  label_group_by: "Raggruppa per"
+  label_group_by_add: "Aggiungi l'attributo Group-by"
+  label_inactive: "«inattivo»"
+  label_less: "<"
+  label_no: "No"
+  label_none: "(nessun dato)"
+  label_progress_bar_explanation: "Generazione Report..."
+  label_really_delete_question: "Sei sicuro di voler cancellare questa segnalazione?"
+  label_report: "Report"
+  label_rows: "Righe"
+  label_saving: "Salvataggio in corso ..."
+  label_sum: "Somma"
+  label_yes: "Si"
+  load_query_question: "Il report avrà le celle della tabella del %{size} e potrebbe essere necessario del tempo per eseguire il rendering. Vuoi ancora tentare di eseguirne il rendering?"
+  units: "Unità di misura"
+  validation_failure_date: "non è una data valida"
+  validation_failure_integer: "non è un numero intero valido"
+  reporting:
+    group_by:
+      selected_columns: "Colonne selezionate"
+      selected_rows: "Righe selezionate"

modules/reporting_engine/config/locales/crowdin/ja.yml

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+ja:
+  description_drill_down: "詳細を表示"
+  label_click_to_edit: "クリックして編集"
+  label_columns: "列"
+  label_count: "回数"
+  label_filter: "フィルタ"
+  label_filter_add: "フィルタを追加"
+  label_filter_plural: "フィルタ"
+  label_greater: ">"
+  label_group_by: "グループ化"
+  label_group_by_add: "グループ化属性を追加"
+  label_inactive: "«非活動»"
+  label_less: "<"
+  label_no: "いいえ"
+  label_none: "(データなし)"
+  label_progress_bar_explanation: "レポートを生成中..."
+  label_really_delete_question: "このレポートを削除してもよろしいですか？"
+  label_report: "レポート"
+  label_rows: "行"
+  label_saving: "保存中…"
+  label_sum: "合計"
+  label_yes: "はい"
+  load_query_question: "レポートは%{size}つセルを持つために、描画するに時間がかかる場合があります。描画してもよろしいですか?"
+  units: "単位"
+  validation_failure_date: "は有効な日付ではありません。"
+  validation_failure_integer: "は有効な整数ではありません。"
+  reporting:
+    group_by:
+      selected_columns: "選択された列"
+      selected_rows: "選択された行"

modules/reporting_engine/config/locales/crowdin/js-ar.yml

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+ar:
+  js:
+    reporting_engine:
+      label_remove: "احذف"
+      label_response_error: "كان هناك خطأ أثناء معالجة الطلب."

modules/reporting_engine/config/locales/crowdin/js-ca.yml

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+ca:
+  js:
+    reporting_engine:
+      label_remove: "Esborra"
+      label_response_error: "Hi ha un error manipulant la consulta."

modules/reporting_engine/config/locales/crowdin/js-da.yml

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+da:
+  js:
+    reporting_engine:
+      label_remove: "Slet"
+      label_response_error: "En fejl opstod under forespørgselshåndteringen."

modules/reporting_engine/config/locales/crowdin/js-de.yml

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+de:
+  js:
+    reporting_engine:
+      label_remove: "Löschen"
+      label_response_error: "Bei der Bearbeitung der Anfrage ist ein Fehler aufgetreten."

modules/reporting_engine/config/locales/crowdin/js-es-ES.yml

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+es:
+  js:
+    reporting_engine:
+      label_remove: "Eliminar"
+      label_response_error: "Se produjo un error procesando la consulta."

modules/reporting_engine/config/locales/crowdin/js-et.yml

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+et:
+  js:
+    reporting_engine:
+      label_remove: "Kustuta"
+      label_response_error: "Päringu käsitlemisel tekkis tõrge."

modules/reporting_engine/config/locales/crowdin/js-fi.yml

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+fi:
+  js:
+    reporting_engine:
+      label_remove: "Poista"
+      label_response_error: "Kyselyn käsittely epäonnistui."

modules/reporting_engine/config/locales/crowdin/js-fr.yml

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+fr:
+  js:
+    reporting_engine:
+      label_remove: "Supprimer"
+      label_response_error: "Une erreur s'est produite lors du traitement de la requête."

modules/reporting_engine/config/locales/crowdin/js-hr.yml

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+hr:
+  js:
+    reporting_engine:
+      label_remove: "Delete"
+      label_response_error: "There was an error handling the query."

modules/reporting_engine/config/locales/crowdin/js-hu.yml

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+hu:
+  js:
+    reporting_engine:
+      label_remove: "Töröl"
+      label_response_error: "Hiba lépett fel a lekérdezés kezelése közben."

modules/reporting_engine/config/locales/crowdin/js-it.yml

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+it:
+  js:
+    reporting_engine:
+      label_remove: "Elimina"
+      label_response_error: "Si è verificato un errore durante l'elaborazione della query."

modules/reporting_engine/config/locales/crowdin/js-ja.yml

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+ja:
+  js:
+    reporting_engine:
+      label_remove: "削除"
+      label_response_error: "クエリを処理中にエラーが発生しました。"

modules/reporting_engine/config/locales/crowdin/js-ko.yml

@@ -0,0 +1,5 @@
+ko:
+  js:
+    reporting_engine:
+      label_remove: "삭제"
+      label_response_error: "쿼리 처리 중에 오류가 발생했습니다."

modules/reporting_engine/config/locales/crowdin/js-lt.yml

@@ -0,0 +1,5 @@
+lt:
+  js:
+    reporting_engine:
+      label_remove: "Ištrinti"
+      label_response_error: "Klaida apdorojant užklausą."

modules/reporting_engine/config/locales/crowdin/js-nl.yml

@@ -0,0 +1,5 @@
+nl:
+  js:
+    reporting_engine:
+      label_remove: "Verwijderen"
+      label_response_error: "Er is een fout opgetreden tijdens het verwerken van het verzoek."

modules/reporting_engine/config/locales/crowdin/js-no.yml

@@ -0,0 +1,5 @@
+"no":
+  js:
+    reporting_engine:
+      label_remove: "Slette"
+      label_response_error: "En feil oppstod under behandling av spørringen."

modules/reporting_engine/config/locales/crowdin/js-pl.yml

@@ -0,0 +1,5 @@
+pl:
+  js:
+    reporting_engine:
+      label_remove: "Usuń"
+      label_response_error: "Wystąpił błąd podczas próby połączenia z serwerem."

modules/reporting_engine/config/locales/crowdin/js-pt-BR.yml

@@ -0,0 +1,5 @@
+pt-BR:
+  js:
+    reporting_engine:
+      label_remove: "Excluir"
+      label_response_error: "Ocorreu um erro na manipulação da consulta."

modules/reporting_engine/config/locales/crowdin/js-pt-PT.yml

@@ -0,0 +1,5 @@
+pt:
+  js:
+    reporting_engine:
+      label_remove: "Eliminar"
+      label_response_error: "Houve um erro ao tratar o questionário."

modules/reporting_engine/config/locales/crowdin/js-ru.yml

@@ -0,0 +1,5 @@
+ru:
+  js:
+    reporting_engine:
+      label_remove: "Удалить"
+      label_response_error: "Произошла ошибка при обработке запроса."

modules/reporting_engine/config/locales/crowdin/js-sk.yml

@@ -0,0 +1,5 @@
+sk:
+  js:
+    reporting_engine:
+      label_remove: "Odstrániť"
+      label_response_error: "Počas spracovania dotazu nastala chyba."

modules/reporting_engine/config/locales/crowdin/js-sv-SE.yml

@@ -0,0 +1,5 @@
+sv:
+  js:
+    reporting_engine:
+      label_remove: "Ta bort"
+      label_response_error: "Det uppstod ett fel när frågan hanterades."

modules/reporting_engine/config/locales/crowdin/js-tr.yml

@@ -0,0 +1,5 @@
+tr:
+  js:
+    reporting_engine:
+      label_remove: "Sil"
+      label_response_error: "Sorguyu işlerken hata oluştu."

modules/reporting_engine/config/locales/crowdin/js-zh-CN.yml

@@ -0,0 +1,5 @@
+zh-CN:
+  js:
+    reporting_engine:
+      label_remove: "删除"
+      label_response_error: "处理查询时出错。"

modules/reporting_engine/config/locales/crowdin/js-zh-TW.yml

@@ -0,0 +1,5 @@
+zh-TW:
+  js:
+    reporting_engine:
+      label_remove: "刪除"
+      label_response_error: "處理查詢時發生錯誤"

modules/reporting_engine/config/locales/crowdin/ko.yml

@@ -0,0 +1,30 @@
+ko:
+  description_drill_down: "세부 정보 표시"
+  label_click_to_edit: "편집하려면 클릭하세요."
+  label_columns: "열"
+  label_count: "카운트"
+  label_filter: "필터"
+  label_filter_add: "필터 추가"
+  label_filter_plural: "필터"
+  label_greater: ">"
+  label_group_by: "그룹화 기준"
+  label_group_by_add: "그룹화 기준 특성 추가"
+  label_inactive: "«비활성»"
+  label_less: "<"
+  label_no: "아니요"
+  label_none: "(데이터 없음)"
+  label_progress_bar_explanation: "보고서 생성 중..."
+  label_really_delete_question: "이 보고서를 삭제하시겠습니까?"
+  label_report: "보고서"
+  label_rows: "행"
+  label_saving: "저장 중..."
+  label_sum: "합계"
+  label_yes: "예"
+  load_query_question: "보고서에는 %{size}개 테이블 셀이 있고 렌더링하는 데 시간이 걸릴 수 있습니다. 렌더링하시겠습니까?"
+  units: "단위"
+  validation_failure_date: "은(는) 유효한 날짜가 아닙니다."
+  validation_failure_integer: "은(는) 유효한 정수가 아닙니다."
+  reporting:
+    group_by:
+      selected_columns: "선택된 열"
+      selected_rows: "선택된 행"

modules/reporting_engine/config/locales/crowdin/lt.yml

@@ -0,0 +1,30 @@
+lt:
+  description_drill_down: "Rodyti Išsamią informaciją"
+  label_click_to_edit: "Spustelėkite, kad redaguoti."
+  label_columns: "Stulpeliai"
+  label_count: "Skaičius"
+  label_filter: "Filtras"
+  label_filter_add: "Pridėti filtrą"
+  label_filter_plural: "Filtrai"
+  label_greater: ">"
+  label_group_by: "Grupuoti pagal"
+  label_group_by_add: "Pridėti grupavimą pagal atributą"
+  label_inactive: "«neaktyvus»"
+  label_less: "<"
+  label_no: "Ne"
+  label_none: "(nėra duomenų)"
+  label_progress_bar_explanation: "Generuojama ataskaita..."
+  label_really_delete_question: "Ar Jūs tikri, kad norite ištrinti šią ataskaitą?"
+  label_report: "Ataskaita"
+  label_rows: "Eilutės"
+  label_saving: "Išsaugoma ..."
+  label_sum: "Suma"
+  label_yes: "Taip"
+  load_query_question: "Ataskaita turės %{size} lentelės langelių ir gali užtrukti, kol bus paruošta. Ar Jūs dar vis norite pabandyti sukurti ją?"
+  units: "Vienetai"
+  validation_failure_date: "nėra tinkama data"
+  validation_failure_integer: "nėra tinkamas sveikas skaičius"
+  reporting:
+    group_by:
+      selected_columns: "Pasirinkti stulpeliai"
+      selected_rows: "Pasirinktos eilutės"

modules/reporting_engine/config/locales/crowdin/nl.yml

@@ -0,0 +1,30 @@
+nl:
+  description_drill_down: "Details weergeven"
+  label_click_to_edit: "Klik om te bewerken."
+  label_columns: "Kolommen"
+  label_count: "Aantal"
+  label_filter: "Filter"
+  label_filter_add: "Filter Toevoegen"
+  label_filter_plural: "Filters"
+  label_greater: ">"
+  label_group_by: "Groeperen op"
+  label_group_by_add: "Groep, toevoegen aan Attribuut"
+  label_inactive: "«inactief»"
+  label_less: "<"
+  label_no: "Nee"
+  label_none: "(geen gegevens)"
+  label_progress_bar_explanation: "Rapport aan het genereren..."
+  label_really_delete_question: "Weet u zeker dat u dit rapport wilt verwijderen?"
+  label_report: "Rapport"
+  label_rows: "Rijen"
+  label_saving: "Opslaan..."
+  label_sum: "Som"
+  label_yes: "Ja"
+  load_query_question: "Het rapport bevat %{size} tabelcellen en kan enige tijd kosten om te renderen. Wilt u proberen het rapport toch uit te voeren?"
+  units: "Eenheden"
+  validation_failure_date: "is geen geldige datum"
+  validation_failure_integer: "is geen geldig geheel getal"
+  reporting:
+    group_by:
+      selected_columns: "Geselecteerde kolommen"
+      selected_rows: "Geselecteerde rijen"

modules/reporting_engine/config/locales/crowdin/no.yml

@@ -0,0 +1,30 @@
+"no":
+  description_drill_down: "Vis detaljer"
+  label_click_to_edit: "Klikk for å redigere."
+  label_columns: "Kolonner"
+  label_count: "Antall"
+  label_filter: "Filter"
+  label_filter_add: "Legg til Filter"
+  label_filter_plural: "Filtre"
+  label_greater: ">"
+  label_group_by: "Grupper etter"
+  label_group_by_add: "Legg grupper etter attributt"
+  label_inactive: "«inaktiv»"
+  label_less: "<"
+  label_no: "Nei"
+  label_none: "(ingen data)"
+  label_progress_bar_explanation: "Genererer rapport..."
+  label_really_delete_question: "Er du sikker på at du vil slette denne rapporten?"
+  label_report: "Rapport"
+  label_rows: "Rader"
+  label_saving: "Lagrer ..."
+  label_sum: "Sum"
+  label_yes: "Ja"
+  load_query_question: "Rapporten vil ha %{size} og kan ta noe tid å gjengi. Vil du likevel gjengi den?"
+  units: "Enheter"
+  validation_failure_date: "er ikke en gyldig dato"
+  validation_failure_integer: "er ikke et gyldig heltall"
+  reporting:
+    group_by:
+      selected_columns: "Selected columns"
+      selected_rows: "Selected rows"

modules/reporting_engine/config/locales/crowdin/pl.yml

@@ -0,0 +1,30 @@
+pl:
+  description_drill_down: "Pokaż szczegóły"
+  label_click_to_edit: "Kliknij aby edytować."
+  label_columns: "Kolumny"
+  label_count: "Ilość"
+  label_filter: "Filtr"
+  label_filter_add: "Dodaj filtr"
+  label_filter_plural: "Filtry"
+  label_greater: ">"
+  label_group_by: "Grupuj według"
+  label_group_by_add: "Dodaj grupowanie po atrybucie"
+  label_inactive: "«nieaktywne»"
+  label_less: "<"
+  label_no: "Nie"
+  label_none: "(brak danych)"
+  label_progress_bar_explanation: "Generuj raport..."
+  label_really_delete_question: "Czy na pewno chcesz usunąć ten raport?"
+  label_report: "Raport"
+  label_rows: "Wiersze"
+  label_saving: "Zapisywanie ..."
+  label_sum: "Suma"
+  label_yes: "Tak"
+  load_query_question: "Raport będzie zawierał %{size} komórek tabeli. Eksport może zająć trochę czasu. Czy nadal chcesz wygenerować raport?"
+  units: "Jednostki"
+  validation_failure_date: "nie jest poprawną datą"
+  validation_failure_integer: "nie jest prawidłową liczbą całkowitą"
+  reporting:
+    group_by:
+      selected_columns: "Wybrane kolumny"
+      selected_rows: "Wybrane wiersze"

modules/reporting_engine/config/locales/crowdin/pt-BR.yml

@@ -0,0 +1,30 @@
+pt-BR:
+  description_drill_down: "Exibir detalhes"
+  label_click_to_edit: "Clique para editar."
+  label_columns: "Colunas"
+  label_count: "Contar"
+  label_filter: "Filtro"
+  label_filter_add: "Adicionar filtro"
+  label_filter_plural: "Filtros"
+  label_greater: ">"
+  label_group_by: "Agrupar por"
+  label_group_by_add: "Adicionar atributo Agrupar por"
+  label_inactive: "«inativo»"
+  label_less: "<"
+  label_no: "Não"
+  label_none: "(sem dados)"
+  label_progress_bar_explanation: "Gerando relatório..."
+  label_really_delete_question: "Tem certeza que deseja excluir este relatório?"
+  label_report: "Relatório"
+  label_rows: "Linhas"
+  label_saving: "Salvando ..."
+  label_sum: "Soma"
+  label_yes: "Sim"
+  load_query_question: "Relatório terá %{size} células da tabela e pode levar algum tempo para processar. Você ainda quer tentar processá-lo?"
+  units: "Unidades"
+  validation_failure_date: "não é uma data válida"
+  validation_failure_integer: "não é um valor inteiro válido"
+  reporting:
+    group_by:
+      selected_columns: "Colunas selecionadas"
+      selected_rows: "Linhas Selecionadas"

modules/reporting_engine/config/locales/crowdin/pt-PT.yml

@@ -0,0 +1,30 @@
+pt:
+  description_drill_down: "Mostrar detalhes"
+  label_click_to_edit: "Clique para editar."
+  label_columns: "Colunas"
+  label_count: "Quantidade"
+  label_filter: "Filtro"
+  label_filter_add: "Adicionar Filtro"
+  label_filter_plural: "Filtros"
+  label_greater: ">"
+  label_group_by: "Agrupar por"
+  label_group_by_add: "Adicionar atributo Agrupar por"
+  label_inactive: "«inativo»"
+  label_less: "<"
+  label_no: "Não"
+  label_none: "(sem dados)"
+  label_progress_bar_explanation: "A gerar relatório..."
+  label_really_delete_question: "Tem a certeza que quer apagar este relatório?"
+  label_report: "Relatório"
+  label_rows: "Linhas"
+  label_saving: "A guardar..."
+  label_sum: "Soma"
+  label_yes: "Sim"
+  load_query_question: "O relatório terá %{size} células da tabela e pode levar algum tempo a processar. Quer tentar processá-lo?"
+  units: "Unidades"
+  validation_failure_date: "não é uma data válida"
+  validation_failure_integer: "não é um número inteiro válido"
+  reporting:
+    group_by:
+      selected_columns: "Colunas selecionadas"
+      selected_rows: "Linhas Selecionadas"

modules/reporting_engine/config/locales/crowdin/ru.yml

@@ -0,0 +1,30 @@
+ru:
+  description_drill_down: "Показать в деталях"
+  label_click_to_edit: "Щелкнуть для изменения."
+  label_columns: "Столбцы"
+  label_count: "Количество"
+  label_filter: "Фильтр"
+  label_filter_add: "Добавить фильтр"
+  label_filter_plural: "Фильтры"
+  label_greater: ">"
+  label_group_by: "Группировать по"
+  label_group_by_add: "Добавить атрибут \"Группировать по\""
+  label_inactive: "«неактивен»"
+  label_less: "<"
+  label_no: "Нет"
+  label_none: "(нет данных)"
+  label_progress_bar_explanation: "Создание отчета..."
+  label_really_delete_question: "Вы действительно хотите удалить этот отчет?"
+  label_report: "Отчет"
+  label_rows: "Строки"
+  label_saving: "Сохранение ..."
+  label_sum: "Сумма"
+  label_yes: "Да"
+  load_query_question: "Отчет будет иметь %{size} ячеек таблицы и может занять некоторое время для визуализации. Вы все еще хотите его сформировать?"
+  units: "Модули"
+  validation_failure_date: "не является допустимой датой"
+  validation_failure_integer: "не является допустимым целым числом"
+  reporting:
+    group_by:
+      selected_columns: "Выбранные столбцы"
+      selected_rows: "Выбранные строки"

modules/reporting_engine/config/locales/crowdin/sk.yml

@@ -0,0 +1,30 @@
+sk:
+  description_drill_down: "Zobraziť Podrobnosti"
+  label_click_to_edit: "Kliknite pre úpravu."
+  label_columns: "Stĺpce"
+  label_count: "Počet"
+  label_filter: "Filtrovať"
+  label_filter_add: "Pridať filter"
+  label_filter_plural: "Filtre"
+  label_greater: ">"
+  label_group_by: "Zoskupiť podľa"
+  label_group_by_add: "Pridať atribút \"zoskupiť podľa\""
+  label_inactive: "«neaktívny»"
+  label_less: "<"
+  label_no: "Nie"
+  label_none: "(žiadne údaje)"
+  label_progress_bar_explanation: "Prebieha tvorba tlačovej zostavy..."
+  label_really_delete_question: "Určite chcete odstrániť túto tlačovú zostavu?"
+  label_report: "Tlačová zostava"
+  label_rows: "Riadky"
+  label_saving: "Ukladanie ..."
+  label_sum: "Súčet"
+  label_yes: "Áno"
+  load_query_question: "Výsledná tlačová zostava bude obsahovať %{size} buniek a jej vytvorenie môže trvať dlhšie. Želáte si ju aj napriek tomu vygenerovať?"
+  units: "Jednotky"
+  validation_failure_date: "nie je platný dátum"
+  validation_failure_integer: "nie je platné celé číslo"
+  reporting:
+    group_by:
+      selected_columns: "Selected columns"
+      selected_rows: "Selected rows"

modules/reporting_engine/config/locales/crowdin/sv-SE.yml

@@ -0,0 +1,30 @@
+sv:
+  description_drill_down: "Visa detaljer"
+  label_click_to_edit: "Klicka för att ändra."
+  label_columns: "Kolumner"
+  label_count: "Antal"
+  label_filter: "Filter"
+  label_filter_add: "Lägg till filter"
+  label_filter_plural: "Filter"
+  label_greater: ">"
+  label_group_by: "Gruppera efter"
+  label_group_by_add: "Lägg till Gruppera-efter-Attribut"
+  label_inactive: "«inaktiv»"
+  label_less: "<"
+  label_no: "Nej"
+  label_none: "(inga data)"
+  label_progress_bar_explanation: "Genererar rapport..."
+  label_really_delete_question: "Är du säker på att du vill ta bort denna rapport?"
+  label_report: "Rapport"
+  label_rows: "Rader"
+  label_saving: "Sparar ..."
+  label_sum: "Summa"
+  label_yes: "Ja"
+  load_query_question: "Rapporten kommer att ha %{size} celler och kan ta lite tid att skapa. Vill du prova att skapa den ändå?"
+  units: "Enheter"
+  validation_failure_date: "inte är ett giltigt datum"
+  validation_failure_integer: "är inte ett giltigt heltal"
+  reporting:
+    group_by:
+      selected_columns: "Valda kolumner"
+      selected_rows: "Markerade rader"

modules/reporting_engine/config/locales/crowdin/tr.yml

@@ -0,0 +1,30 @@
+tr:
+  description_drill_down: "Ayrıntıları görüntüle"
+  label_click_to_edit: "Düzenlemek için tıklayınız."
+  label_columns: "Sütunlar"
+  label_count: "Sayı"
+  label_filter: "Filtre"
+  label_filter_add: "Süzgeç ekle"
+  label_filter_plural: "Süzgeçler"
+  label_greater: ">"
+  label_group_by: "Grupla"
+  label_group_by_add: "Grubu Özelliklere Ekleyin"
+  label_inactive: "«etkin olmayan»"
+  label_less: "<"
+  label_no: "Hayır"
+  label_none: "(veri yok)"
+  label_progress_bar_explanation: "Rapor oluşturuluyor..."
+  label_really_delete_question: "Bu raporu silmek istediğinizden emin misiniz?"
+  label_report: "Rapor"
+  label_rows: "Satırlar"
+  label_saving: "Kaydediliyor ..."
+  label_sum: "Toplam"
+  label_yes: "Evet"
+  load_query_question: "Rapor %{size} tablo hücreleri içeriyor ve işlenmesi biraz zaman alabilir. Raporu yine de çalıştırmayı denemek ister misin?"
+  units: "Birimler"
+  validation_failure_date: "geçerli bir tarih değil"
+  validation_failure_integer: "geçerli bir tamsayı değil"
+  reporting:
+    group_by:
+      selected_columns: "Seçili sütunlar"
+      selected_rows: "Seçili satırlar"

modules/reporting_engine/config/locales/crowdin/zh-CN.yml

@@ -0,0 +1,30 @@
+zh-CN:
+  description_drill_down: "显示详情"
+  label_click_to_edit: "点击编辑。"
+  label_columns: "列"
+  label_count: "数量"
+  label_filter: "筛选器"
+  label_filter_add: "添加筛选器"
+  label_filter_plural: "筛选器"
+  label_greater: ">"
+  label_group_by: "分组依据"
+  label_group_by_add: "添加分组依据属性"
+  label_inactive: "«不活动»"
+  label_less: "<"
+  label_no: "否"
+  label_none: "（无数据）"
+  label_progress_bar_explanation: "生成报告中..."
+  label_really_delete_question: "您是否确定想要删除此报告？"
+  label_report: "报告"
+  label_rows: "行"
+  label_saving: "正在保存..."
+  label_sum: "总计"
+  label_yes: "是"
+  load_query_question: "报告有 %{size} 个表格单元格，可能需要一些时间渲染。您仍然想要尝试渲染它吗？"
+  units: "单位"
+  validation_failure_date: "不是有效的日期"
+  validation_failure_integer: "不是有效的整数"
+  reporting:
+    group_by:
+      selected_columns: "选定的列"
+      selected_rows: "选定的行"

modules/reporting_engine/config/locales/crowdin/zh-TW.yml

@@ -0,0 +1,30 @@
+zh-TW:
+  description_drill_down: "顯示詳細資訊"
+  label_click_to_edit: "按一下編輯"
+  label_columns: "欄位"
+  label_count: "數量"
+  label_filter: "篩選器"
+  label_filter_add: "新增篩選器"
+  label_filter_plural: "篩選器"
+  label_greater: ">"
+  label_group_by: "分組依據"
+  label_group_by_add: "新增分組依據屬性"
+  label_inactive: "«不活動»"
+  label_less: "<"
+  label_no: "否"
+  label_none: "(沒有資料)"
+  label_progress_bar_explanation: "產生報告中..."
+  label_really_delete_question: "你確定你要刪除這個報告？"
+  label_report: "報告"
+  label_rows: "列"
+  label_saving: "儲存中..."
+  label_sum: "總和"
+  label_yes: "是"
+  load_query_question: "報告含有 %{size} 個儲存格，將要花一些時間呈現。你仍然想要嘗試顯示它嗎？"
+  units: "單位"
+  validation_failure_date: "不是一個有效日期"
+  validation_failure_integer: "不是一個有效的整數"
+  reporting:
+    group_by:
+      selected_columns: "選擇列"
+      selected_rows: "選定行"

modules/reporting_engine/config/locales/en.yml

@@ -0,0 +1,54 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+---
+en:
+  description_drill_down: "Show details"
+
+  label_click_to_edit: "Click to edit."
+  label_columns: "Columns"
+  label_count: "Count"
+  label_filter: "Filter"
+  label_filter_add: "Add Filter"
+  label_filter_plural: "Filters"
+  label_greater: ">"
+  label_group_by: "Group by"
+  label_group_by_add: "Add Group-by Attribute"
+  label_inactive: "«inactive»"
+  label_less: "<"
+  label_no: "No"
+  label_none: "(no data)"
+  label_progress_bar_explanation: "Generating report..."
+  label_really_delete_question: "Are you sure you want to delete this report?"
+  label_report: "Report"
+  label_rows: "Rows"
+  label_saving: "Saving ..."
+  label_sum: "Sum"
+  label_yes: "Yes"
+  load_query_question: "Report will have %{size} table cells and may take some time to render. Do you still want to try rendering it?"
+
+  units: "Units"
+
+  validation_failure_date: "is not a valid date"
+  validation_failure_integer: "is not a valid integer"
+
+  reporting:
+    group_by:
+      selected_columns: "Selected columns"
+      selected_rows: "Selected rows"

modules/reporting_engine/config/locales/js-en.yml

@@ -0,0 +1,23 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+en:
+  js:
+    reporting_engine:
+      label_remove: "Delete"
+      label_response_error: "There was an error handling the query."

modules/reporting_engine/doc/API_CHANGES.md

@@ -0,0 +1,24 @@
+<!---- copyright
+ReportingEngine
+
+Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+version 3.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+++-->
+
+# Rails 3.2 Upgrade
+
+* add Gem dependency
+* require 'reporting_engine/x' instead of 'x'

modules/reporting_engine/doc/COPYRIGHT.md

@@ -0,0 +1,18 @@
+ReportingEngine
+
+A Rails engine allowing to create customized database reports
+
+Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+version 3.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

modules/reporting_engine/doc/COPYRIGHT_short.md

@@ -0,0 +1,16 @@
+ReportingEngine
+
+Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+version 3.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

modules/reporting_engine/doc/GPL.txt

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

modules/reporting_engine/lib/assets/javascripts/reporting_engine/reporting.js

@@ -0,0 +1,85 @@
+//-- copyright
+// ReportingEngine
+//
+// Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//++
+
+/*jslint white: false, nomen: true, devel: true, on: true, debug: false, evil: true, onevar: false, browser: true, white: false, indent: 2 */
+/*global window, $, $$, Reporting, Element */
+
+window.Reporting = (function($) {
+  var onload = function (func) {
+    $(document).ready(func);
+  };
+
+  var flash = function (string, type) {
+    if (!type) {
+      type = "error";
+    }
+
+    var options = {};
+
+    if (type === 'error') {
+      options = {
+        id: 'errorExplanation',
+        class: 'errorExplanation'
+      };
+    }
+    else {
+      options = {
+        id: 'flash_' + type,
+        class: 'flash ' + type
+      };
+    }
+
+    $("#" + options.id).remove();
+
+    var flash = $('<div></div>')
+                .attr('id', options.id)
+                .attr('class', options.class)
+                .attr('tabindex', 0)
+                .attr('role', 'alert')
+                .html(string);
+
+    $('#content').prepend(flash);
+    $('#' + options.id).focus();
+  };
+
+  var clearFlash = function () {
+    $('div[id^=flash]').remove();
+  };
+
+  var fireEvent = function (element, event) {
+    var evt;
+    if (document.createEventObject) {
+      // dispatch for IE
+      evt = document.createEventObject();
+      return element.fireEvent('on' + event, evt);
+    } else {
+      // dispatch for firefox + others
+      evt = document.createEvent("HTMLEvents");
+      evt.initEvent(event, true, true); // event type,bubbling,cancelable
+      return !element.dispatchEvent(evt);
+    }
+  };
+
+  return {
+    fireEvent: fireEvent,
+    clearFlash: clearFlash,
+    flash: flash,
+    onload: onload
+  };
+})(jQuery);

modules/reporting_engine/lib/assets/javascripts/reporting_engine/reporting/controls.js

@@ -0,0 +1,157 @@
+//-- copyright
+// ReportingEngine
+//
+// Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//++
+
+/*jslint white: false, nomen: true, devel: true, on: true, debug: false, evil: true, onevar: false, browser: true, white: false, indent: 2 */
+/*global window, $, $$, Reporting, Effect, Ajax, Element, selectAllOptions, Form */
+
+Reporting.Controls = function($){
+  var toggle_delete_form = function (e) {
+    e.preventDefault();
+
+    var offset = $('#query-icon-delete').offset().left;
+    $('#delete_form').css("left", offset + "px").toggle();
+  };
+
+  var toggle_save_as_form = function (e) {
+    e.preventDefault();
+
+    var offset = $('#query-icon-save-as').offset().left;
+    $('#save_as_form')
+      .css('left',  offset + 'px')
+      .toggle();
+  };
+
+  var clear_query = function (e) {
+    e.preventDefault();
+
+    Reporting.Filters.clear();
+    Reporting.GroupBys.clear();
+  };
+
+  var send_settings_data = function (targetUrl, callback, failureCallback) {
+    if (!failureCallback) {
+      failureCallback = default_failure_callback;
+    }
+    Reporting.clearFlash();
+
+    $.ajax({
+      url: targetUrl,
+      method: 'POST',
+      data: serialize_settings_form(),
+      beforeSend: function () {
+        $('#ajax-indicator').show();
+      },
+      error: failureCallback,
+      success: callback
+    });
+  };
+
+  var serialize_settings_form = function() {
+    var ret_str, grouping_str;
+    ret_str = $('#query_form').serialize();
+    grouping_str = _.reduce(['rows', 'columns'], function(grouping, type) {
+      var element_map = _.map($('#group-by--' + type + ' .group-by--selected-element'), function(group_by) {
+        return 'groups[' + type + '][]=' + $(group_by).attr('data-group-by');
+      });
+
+      return grouping + _.reduce(element_map, function(all_group_str, group_str) {
+        return all_group_str + '&' + group_str;
+      }, '');
+    }, '');
+
+    if (grouping_str.length > 0) {
+      ret_str += grouping_str;
+    }
+    return ret_str;
+  };
+
+  var attach_settings_callback = function (element, callback) {
+    if (element === null) {
+      return;
+    }
+    failureCallback = function (response) {
+      $('#result-table').html("");
+
+      default_failure_callback(response);
+    };
+
+    element.on('click', function (e) {
+      e.preventDefault();
+      send_settings_data($(this).attr("data-target"), callback, failureCallback);
+    });
+  };
+
+  var observe_click = function (element_id, callback) {
+    $('#' + element_id).on('click', callback);
+  };
+
+  var update_result_table = function (response) {
+    $('#result-table').html(response);
+  };
+
+  var default_failure_callback = function (response) {
+    if (response.status >= 400 && response.status < 500) {
+      Reporting.flash(response.responseText);
+    } else {
+      Reporting.flash(I18n.t("js.reporting_engine.label_response_error"));
+    }
+  };
+
+  return {
+    attach_settings_callback: attach_settings_callback,
+    clear_query: clear_query,
+    observe_click: observe_click,
+    update_result_table: update_result_table,
+    toggle_delete_form: toggle_delete_form,
+    toggle_save_as_form: toggle_save_as_form
+  };
+}(jQuery);
+
+(function($) {
+  Reporting.onload(function () {
+    if ($('#query_saved_name').length) {
+      // don't concern ourselves with new queries
+      if ($('#query_saved_name').attr("data-is_new")) {
+        if ($('#query-icon-delete').length) {
+          Reporting.Controls.observe_click("query-icon-delete", Reporting.Controls.toggle_delete_form);
+          Reporting.Controls.observe_click("query-icon-delete-cancel", Reporting.Controls.toggle_delete_form);
+          $('#delete_form').hide();
+        }
+
+        if ($("#query-breadcrumb-save").length) {
+          // When saving an update of an exisiting query or apply filters, we replace the table on success
+          Reporting.Controls.attach_settings_callback($("#query-breadcrumb-save"), Reporting.Controls.update_result_table);
+        }
+      }
+    }
+
+    Reporting.Controls.observe_click("query-icon-save-as", Reporting.Controls.toggle_save_as_form);
+    Reporting.Controls.observe_click("query-icon-save-as-cancel", Reporting.Controls.toggle_save_as_form);
+
+    $('#save_as_form').hide();
+
+    // When saving a new query, the success-response is the new saved query's url -> redirect to that
+    Reporting.Controls.attach_settings_callback($("#query-icon-save-button"), function (newLocation) {
+      document.location = newLocation;
+    });
+    // When saving an update of an exisiting query or apply filters, we replace the table on success
+    Reporting.Controls.attach_settings_callback($("#query-icon-apply-button"), Reporting.Controls.update_result_table);
+    Reporting.Controls.observe_click('query-link-clear', Reporting.Controls.clear_query);
+  });
+})(jQuery);

modules/reporting_engine/lib/assets/javascripts/reporting_engine/reporting/filters.js

@@ -0,0 +1,371 @@
+//-- copyright
+// ReportingEngine
+//
+// Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//++
+
+/*jslint white: false, nomen: true, devel: true, on: true, debug: false, evil: true, onevar: false, browser: true, white: false, indent: 2 */
+/*global window, $, $$, Reporting, */
+
+Reporting.Filters = function($){
+  var load_available_values_for_filter = function  (filter_name, callback_func) {
+    var select, radio_options, post_select_values;
+    select = $('.filter-value[data-filter-name="' + filter_name + '"]').first();
+    // check if we might have a radio-box
+    radio_options = $('.' + filter_name + '_radio_option input');
+    if (radio_options && radio_options.length !== 0) {
+      radio_options.first().checked = true;
+      callback_func();
+    }
+    if (!select.length) {
+      return;
+    }
+    if (select.attr('data-loading') === "ajax" && select.children().length === 0) {
+      load_available_values_for_filter_from_remote(select, filter_name, callback_func);
+      multi_select(select, false);
+    } else {
+      callback_func();
+    }
+  };
+
+  var load_available_values_for_filter_from_remote = function(select, filter_name, callback_func) {
+    var url = select.attr("data-remote-url"),
+        json_post_select_values = select.attr('data-initially-selected'),
+        post_select_values;
+
+    if (json_post_select_values !== null && json_post_select_values !== undefined) {
+      post_select_values = $.parseJSON(json_post_select_values.replace(/'/g, '"'));
+    }
+
+    if (window.global_prefix === undefined) {
+      window.global_prefix = "";
+    }
+
+    $.ajax({
+      url: url,
+      method: 'POST',
+      data: {
+        filter_name: filter_name,
+        values: json_post_select_values
+      },
+      beforeSend: function () {
+        $("select[data-filter-name='" + filter_name + "']").attr('disable', true);
+        $('#ajax-indicator').show();
+      },
+      complete: function (xhr) {
+        var tagName = select.prop('tagName');
+
+        select.html(xhr.responseText);
+        $("select[data-filter-name='" + filter_name + "']").removeAttr('disable');
+        if (tagName && tagName.toLowerCase() === "select") {
+          if (!post_select_values || post_select_values.length === 0) {
+            select.selectedIndex = 0;
+          } else {
+            select_values(select, post_select_values);
+          }
+        }
+        callback_func();
+      }
+    });
+  };
+
+  var show_filter = function (field, options) {
+    var default_options = {
+      callback_func: function () {},
+      slowly: false,
+      show_filter: true,
+      hide_only: false
+    };
+
+    options = $.extend({}, default_options, options);
+
+    var field_el = $('#filter_' +  field);
+    if (field_el !== null) {
+      if (!options.insert_after) {
+        options.insert_after = last_visible_filter();
+      }
+      if (options.insert_after && options.show_filter) {
+        // Move the filter down to appear after the last currently visible filter
+        if (field_el.attr('id') !== options.insert_after.id) {
+          field_el.detach();
+          $('#' + options.insert_after.id).after(field_el);
+        }
+      }
+      // the following command might be included into the callback_function (which is called after the ajax request) later
+      var display_functor;
+      if (options.show_filter) {
+        options.slowly ? field_el.fadeIn('slow') : field_el.show();
+        load_available_values_for_filter(field, options.callback_func);
+        $('#rm_' + field).val(field); // set the value, so the serialized form will return this filter
+        value_changed(field);
+        set_filter_value_widths(100);
+      } else {
+        options.slowly ? field_el.fadeOut('slow') : field_el.hide();
+
+        if (!options.hide_only) { // remember that this filter used to be selected
+          field_el.removeAttr('data-selected');
+        }
+        $('#rm_' + field).val(""); // reset the value, so the serialized form will not return this filter
+        set_filter_value_widths(5000);
+      }
+      operator_changed(field, $("#operators\\[" + field + "\\]"));
+      display_category($('#' + field_el.attr("data-label")));
+    }
+  };
+
+  /**
+   * Activates the filter with the given name.
+   *
+   * @param filter_name Name of the filter to be activated.
+   */
+  var add_filter = function (filter_name) {
+    var field = filter_name;
+    // do this immediately instead of in callback to avoid concurrency issues during testing
+    select_option_enabled($('#add_filter_select'), filter_name, false);
+    show_filter(field, { slowly: true });
+  };
+
+  var remove_filter = function (field, hide_only) {
+    show_filter(field, { show_filter: false, hide_only: hide_only });
+    select_option_enabled($("#add_filter_select"), field, true);
+  };
+
+  /*
+    Smoothly sets the width of currently displayed filters.
+    Params:
+      delay:Int
+        Time to wait before resizing the filters width */
+  var set_filter_value_widths = function (delay) {
+    window.clearTimeout(set_filter_value_widths_timeout);
+    if (visible_filters().length > 0) {
+      set_filter_value_widths_timeout = window.setTimeout(function () {
+        var table_data = $('#filter_' + visible_filters()[0] + ' .advanced-filters--filter-value').first().parent();
+        var current_width = table_data.width();
+        var filters = $(".advanced-filters--filter");
+        // First, reset all widths
+        filters.css('width', 'auto');
+        // Now, get the current width
+        // Any width will be fine, as the table layout makes all elements the same width
+        var new_width = table_data.width();
+        if (new_width < current_width) {
+          // Set all widths to previous, so we can animate
+          filters.css('width', current_width + 'px');
+        }
+        // Now, set all widths to be the widest
+        if (new_width < current_width) {
+          filters.animate('width', new_width + 'px');
+        } else {
+          filters.css('width', new_width + 'px');
+        }
+      }, delay);
+    }
+  };
+
+  var set_filter_value_widths_timeout;
+
+  var last_visible_filter = function () {
+    return $('.advanced-filters--filter:visible').last()[0];
+  };
+
+  /* Display the given category if any of its filters are visible. Otherwise hide it */
+  var display_category = function (label) {
+    if (label.length) {
+      $('.advanced-filters--filter').each(function() {
+        var filter = $(this);
+        if (filter.is(':visible') && filter.attr("data-label") === label) {
+          $(label).show();
+          return;
+        }
+        $(label).hide();
+      });
+    }
+  };
+
+  var operator_changed = function (field, select) {
+    var option_tag, arity, first;
+    if (select === null) {
+      return;
+    }
+    first = false;
+    if (!select.attr("data-first")) {
+      first = true;
+      $(select).attr("data-first", "false");
+    }
+    option_tag = select.find('option[value="' + select.val() + '"]');
+    arity = parseInt(option_tag.attr("data-arity"));
+    change_argument_visibility(field, arity);
+    if (option_tag.attr("data-forced")) {
+      force_type(option_tag, first);
+    }
+  };
+
+  // Overwrite to customize input enforcements.
+  // option: 'option' HTMLElement
+  // first: Boolean indicating whether the operator changed for the first time
+  var force_type = function (option, first) {
+    return true;
+  };
+
+  var value_changed = function (field) {
+    var val, filter;
+    val = $('#' + field + '_arg_1_val');
+    filter = $('#filter_' + field);
+    if (!val) {
+      return;
+    }
+    if (val.value === '<<inactive>>') {
+      filter.addClass('inactive-filter');
+    } else {
+      filter.removeClass('inactive-filter');
+    }
+  };
+
+  var change_argument_visibility = function (field, arg_nr) {
+    var params, i;
+    params = [$('#' + field + '_arg_1'), $('#' + field + '_arg_2')];
+
+    for (i = 0; i < 2; i += 1) {
+      if (params[i] !== null) {
+        if (arg_nr >= (i + 1) || arg_nr <= (-1 - i)) {
+          params[i].show();
+          params[i].children().show();
+        } else {
+          params[i].hide();
+          params[i].children().hide();
+        }
+      }
+    }
+  };
+
+  var select_option_enabled = function (box, value, state) {
+    box.find("[value='" + value + "']").attr('disabled', !state);
+  };
+
+  var multi_select = function (select, multi) {
+    select.attr('multiple', multi);
+    if (multi) {
+      select.attr('size', 4);
+      // deselect first option if it's present
+      if (select.find('option')[0]) {
+        select.find('option').first().attr('selected', false);
+      }
+    } else {
+      select.attr('size', 1);
+    }
+  };
+
+  var toggle_multi_select = function (select) {
+    multi_select(select, !select.attr('multiple'));
+  };
+
+  var visible_filters = function () {
+    return _.map($("#filter_table .advanced-filters--filter:visible"), function(filter) {
+      return $(filter).attr("data-filter-name");
+    });
+  };
+
+  var clear = function () {
+    _.each(visible_filters(), function (filter) {
+      remove_filter(filter);
+    });
+  };
+
+  // Select the given values of the selectBox.
+  // Toggle multi-select state of the selectBox depending on how many values were given.
+  var select_values = function(selectBox, values_to_select) {
+    multi_select(selectBox, values_to_select.length > 1);
+    selectBox.val(values_to_select);
+  };
+
+  var exists = function (filter) {
+    return visible_filters().indexOf(filter) > 0;
+  };
+
+  return {
+    add_filter: add_filter,
+    clear: clear,
+    exists: exists,
+    operator_changed: operator_changed,
+    remove_filter: remove_filter,
+    select_option_enabled: select_option_enabled,
+    select_values: select_values,
+    toggle_multi_select: toggle_multi_select,
+    value_changed: value_changed
+  };
+}(jQuery);
+
+(function($) {
+  Reporting.onload(function () {
+    if ($("#add_filter_select")) {
+      $("#add_filter_select").on("change", function () {
+        if (!(Reporting.Filters.exists(this.value))) {
+          Reporting.Filters.add_filter(this.value);
+          var new_filter = this.value;
+          this.selectedIndex = 0;
+          setTimeout(function () {
+            $('#operators\\['+ new_filter +'\\]').focus();
+          }, 300);
+        }
+      });
+    }
+
+    $(".filter_rem")
+      .on("click", function (event) {
+        event.preventDefault();
+        var filter_name = $(this).closest('li').attr("data-filter-name");
+        Reporting.Filters.remove_filter(filter_name);
+      })
+      .on("keydown", function (event) {
+        if (event.keyCode == 13 || event.keyCode == 32) {
+          event.preventDefault();
+          var filter_name = $(this).closest('li').attr("data-filter-name"),
+              prevVisibleFilter = $(this).closest('li').prevAll(':visible').last().find('.advanced-filters--select');
+
+          if (prevVisibleFilter.length > 0) {
+            prevVisibleFilter.focus();
+          } else {
+            $('#filters > legend a')[0].focus();
+          }
+          Reporting.Filters.remove_filter(filter_name);
+        }
+      });
+
+    $(".filter_operator")
+      .on("change", function (evt) {
+        var filter_name = $(this).attr("data-filter-name");
+        Reporting.Filters.operator_changed(filter_name, $(this));
+        Reporting.fireEvent($('#' + filter_name + "_arg_1_val")[0], "change");
+      });
+
+    $(".filter_multi-select")
+      .on("click", function () {
+        var filter_name = $(this).attr("data-filter-name");
+        Reporting.Filters.toggle_multi_select($('#' + filter_name + '_arg_1_val'));
+      });
+
+    $(".advanced-filters--filter-value .filter-value").each(function () {
+      var select = $(this);
+          select_value = select.val();
+
+      select.attr('multiple', select_value && select_value.length > 1);
+
+      select.on("change", function (evt) {
+        var filter_name = $(this).closest('li').attr("data-filter-name");
+        Reporting.Filters.value_changed(filter_name);
+      });
+    });
+  });
+})(jQuery);

modules/reporting_engine/lib/assets/javascripts/reporting_engine/reporting/group_bys.js

@@ -0,0 +1,191 @@
+//-- copyright
+// ReportingEngine
+//
+// Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//++
+
+/*jslint white: false, nomen: true, devel: true, on: true, debug: false, evil: true, onevar: false, browser: true, white: false, indent: 2 */
+/*global window, $, $$, Reporting, Effect, Ajax, selectAllOptions, moveOptions, moveOptionUp, moveOptionDown */
+
+Reporting.GroupBys = (function($){
+  var group_by_container_ids = function() {
+    var ids = ['group-by--columns', 'group-by--rows'];
+
+    return _.filter(ids, function (i) {
+      return $('#' + i).length > 0 ;
+    });
+  };
+
+  var recreate_sortables = function() {
+    var containers = $('.group-by--selected-elements')
+                     .toArray();
+
+    dragula(containers,
+            {
+              // Setting the mirrorContainer to something smaller than the body
+              // reduces the performance hit when using dnd.
+              mirrorContainer: document.getElementById('group-by--area')
+            });
+  };
+
+  var initialize_drag_and_drop_areas = function() {
+    recreate_sortables();
+  };
+
+  var create_label = function(group_by, text) {
+    return $('<label></label>')
+           .attr('class', 'in_row group-by--label')
+           .attr('for', group_by.attr('id'))
+           .attr('id', group_by.attr('id') + '_label')
+           .html(text);
+  };
+
+  var create_remove_button = function(group_by) {
+    var remove_link, remove_icon;
+
+    remove_link = $('<a></a>');
+    remove_link.attr('class', 'group-by--remove in_row');
+    remove_link.attr('id', group_by.attr('id') + '_remove');
+    remove_link.attr('href', '');
+
+    remove_icon = $('<span><span>');
+    remove_icon.attr('class', 'icon-context icon-close icon4');
+
+    remove_link.attr('title', I18n.t("js.reporting_engine.label_remove") + ' ' + group_by.find('label').html());
+    remove_icon.attr('alt', I18n.t("js.reporting_engine.label_remove") + ' ' + group_by.find('label').html());
+
+    remove_link.on('click', function(e) {
+      e.preventDefault();
+      remove_element_event_action(e, group_by, remove_link);
+    });
+    remove_link.on('keypress', function(e) {
+      /* keyCode 32: Space */
+      if (e.keyCode == 32) {
+        e.preventDefault();
+        remove_element_event_action(e, group_by, remove_link);
+      }
+    });
+    remove_link.append(remove_icon);
+    return remove_link;
+  };
+
+  var remove_element_event_action = function(event, group_by, button) {
+      var link_node = group_by.next('span').find('a'),
+          select_node = group_by.next('select');
+
+      if (link_node.length) {
+        link_node.focus();
+      }
+      else if (select_node.length) {
+        select_node.focus();
+      }
+
+      remove_group_by(button.closest('.group-by--selected-element'));
+  };
+
+  var create_group_by = function(field, caption) {
+    var group_by, label, right_arrow, left_arrow, remove_button;
+    group_by = $('<span></span>');
+    group_by.attr('class', 'group-by--selected-element');
+    group_by.attr('data-group-by', field);
+    group_by.uniqueId(); // give it a unique id
+
+    label = create_label(group_by, caption);
+    group_by.append(label);
+
+    remove_button = create_remove_button(group_by);
+    group_by.append(remove_button);
+
+    return group_by;
+  };
+
+  // This is whether it is possible to add a new group if <<field>> through the
+  // add-group-by select-box or not.
+  var adding_group_by_enabled = function(field, state) {
+    _.each(['#group-by--add-columns', '#group-by--add-rows'], function(container_id) {
+      Reporting.Filters.select_option_enabled($(container_id), field, state);
+    });
+  };
+
+  var remove_group_by = function(group_by) {
+    adding_group_by_enabled(group_by.attr('data-group-by'), true);
+    group_by.remove();
+  };
+
+  var add_group_by_from_select = function(select) {
+    var jselect = $(select),
+        field = jselect.val(),
+        container = jselect.closest('.group-by--container'),
+        selected_option = jselect.find("[value='" + field + "']").first(),
+        caption = selected_option.attr('data-label');
+
+    Reporting.GroupBys.add_group_by(field, caption, container);
+    jselect.find("[value='']").first().attr('selected', true);
+  };
+
+  var add_group_by = function(field, caption, container) {
+    var group_by, add_groups_select_box, added_container;
+    add_groups_select_box = container.find('select').first();
+    group_by = Reporting.GroupBys.create_group_by(field, caption);
+    added_container = container.find('.group-by--selected-elements');
+    added_container.append(group_by);
+    adding_group_by_enabled(field, false);
+  };
+
+  var clear = function() {
+    _.each(visible_group_bys(), function (group_by) {
+      $('#' + group_by + ' .group-by--selected-element').each(function() {
+        remove_group_by($(this));
+      });
+    });
+  };
+
+  var visible_group_bys = function() {
+    var visible = _.filter(group_by_container_ids(), function (container) {
+      return $('#' + container).find('[data-group-by]');
+    });
+
+    return _.flatten(visible);
+  };
+
+  var exists = function(group_by_name) {
+    return _.some(visible_group_bys(), function (grp) {
+      return $('#' + grp).attr('data-group-by') === group_by_name;
+    });
+  };
+
+  return {
+    add_group_by: add_group_by,
+    add_group_by_from_select: add_group_by_from_select,
+    clear: clear,
+    create_group_by: create_group_by,
+    exists: exists,
+    group_by_container_ids: group_by_container_ids,
+    initialize_drag_and_drop_areas: initialize_drag_and_drop_areas
+  };
+
+})(jQuery);
+
+(function($) {
+  Reporting.onload(function () {
+    Reporting.GroupBys.initialize_drag_and_drop_areas();
+    $('#group-by--add-rows, #group-by--add-columns').on('change', function () {
+      if (!(Reporting.GroupBys.exists(this.value))) {
+        Reporting.GroupBys.add_group_by_from_select(this);
+      }
+    });
+  });
+})(jQuery);

modules/reporting_engine/lib/assets/javascripts/reporting_engine/reporting/restore_query.js

@@ -0,0 +1,101 @@
+//-- copyright
+// ReportingEngine
+//
+// Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//++
+
+/*jslint white: false, nomen: true, devel: true, on: true, debug: false, evil: true, onevar: false, browser: true, white: false, indent: 2 */
+/*global window, $, $$, Reporting, Effect, Ajax */
+
+Reporting.RestoreQuery = function($){
+
+  var select_operator = function (field, operator) {
+    var select, i;
+    select = $("#operators_" + field);
+    if (select === null) {
+      return; // there is no such operator select field
+    }
+    for (i = 0; i < select.options.length; i += 1) {
+      if (select.options[i].value === operator) {
+        select.selectedIndex = i;
+        break;
+      }
+    }
+    Reporting.Filters.operator_changed(field, select);
+  };
+
+  var disable_select_option = function (select, field) {
+    for (var i = 0; i < select.options.length; i += 1) {
+      if (select.options[i].value === field) {
+        select.options[i].disabled = true;
+        break;
+      }
+    }
+  };
+
+  var restore_filters = function () {
+    var deps = _.each($('.advanced-filters--select.filter-value'), function(select) {
+      var jselect = $(select),
+          tr = jselect.closest('li');
+
+      if (tr.visible()) {
+        var filter = tr.attr('data-filter-name');
+        var dependent = jselect.attr('data-dependent');
+
+        if (filter && dependent) {
+          Reporting.Filters.remove_filter(filter, false);
+        }
+      }
+    });
+
+    _.each($("li.advanced-filters--filter[data-selected=true]"), function (e) {
+      var filter = $(e),
+          select = filter.find(".advanced-filters--filter-value select");
+      if (select && select.attr("data-dependent")) return;
+      var filter_name = filter.attr("data-filter-name");
+      Reporting.Filters.add_filter(filter_name);
+    });
+  };
+
+  var restore_group_bys = function () {
+    _.each(Reporting.GroupBys.group_by_container_ids(), function(id) {
+      var container = $('#' + id),
+          selected_containers = container.attr('data-initially-selected'),
+          selected_groups;
+
+
+      if (selected_containers) {
+        selected_groups = $.parseJSON(selected_containers.replace(/'/g, '"'));
+        _.each(selected_groups, function(group_and_label) {
+          var group, label;
+          group = group_and_label[0];
+          label = group_and_label[1];
+          Reporting.GroupBys.add_group_by(group, label, container);
+        });
+      }
+    });
+  };
+
+  return {
+    restore_group_bys: restore_group_bys,
+    restore_filters: restore_filters
+  };
+}(jQuery);
+
+Reporting.onload(function () {
+  Reporting.RestoreQuery.restore_group_bys();
+  Reporting.RestoreQuery.restore_filters();
+});

modules/reporting_engine/lib/assets/javascripts/reporting_engine/reporting_engine.js

@@ -0,0 +1,24 @@
+//-- copyright
+// ReportingEngine
+//
+// Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// version 3.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+//++
+
+//= require reporting_engine/reporting
+//= require reporting_engine/reporting/filters
+//= require reporting_engine/reporting/group_bys
+//= require reporting_engine/reporting/restore_query
+//= require reporting_engine/reporting/controls

modules/reporting_engine/lib/assets/stylesheets/reporting_engine/reporting.css.erb

@@ -0,0 +1,452 @@
+/*-- copyright
+ReportingEngine
+
+Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+version 3.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+++*/
+
+.cost_types {
+  padding-bottom: 3px;
+}
+
+.cost_types a.active {
+  color: #000;
+  font-weight: bold;
+}
+
+.report {
+  text-align:       center;
+  border-collapse:  collapse;
+  border:           solid 1px #ccc !important;
+  width:            auto !important;
+}
+
+.report td, .report th {
+  min-width:        90px;
+  white-space:      nowrap;
+}
+
+.report td {
+  border: dotted 1px #ddd;
+  color: #666;
+  text-align: center;
+  padding: 0 8px 0 8px;
+  line-height: 2rem;
+  vertical-align: middle;
+
+}
+
+.report tbody th, .report tbody td, .inner {
+  max-width: 300px;
+  white-space: normal !important;
+}
+
+.report td:hover {
+  color: #000;
+  outline: #ccc 1px solid;
+  outline-offset: 1px;
+}
+
+.report td.empty:hover {
+  outline: none;
+}
+
+.report th {
+  border: solid 1px #ccc;
+  background-color: #e3e3e3;
+  text-align: center;
+  font-size: 0.875rem;
+  line-height: 34px;
+  padding: 0 8px 0 8px;
+
+}
+
+.report .odd th.inner {
+  background-color: #e8e8e8;
+}
+
+.report .even th.inner {
+  background-color: #e3e3e3;
+}
+
+.report th.inner {
+  border: solid 1px #ccc;
+  background-color: #efefef;
+  text-align: right;
+}
+
+.report .odd td.inner {
+  background-color: #e8e8e8;
+}
+
+.report .even td.inner {
+  background-color: #e3e3e3;
+}
+
+.report tr.even:hover .inner,
+.report tr.even:hover .bottom,
+.report tr.even:hover .empty,
+.report tr.even:hover .right {
+  background-color: #f5f5c5 !important;
+}
+/* IE7 made me do it! */
+.report tr.odd:hover .inner,
+.report tr.odd:hover .bottom,
+.report tr.odd:hover .empty,
+.report tr.odd:hover .right {
+  background-color: #f5f5c5 !important;
+}
+
+.report .top {
+  border-top-style: solid;
+  border-top-color: #ccc;
+  /* border-top: 2px solid #ccc !important; */
+}
+
+.report .bottom {
+  border-bottom-style: solid;
+  border-bottom-color: #ccc;
+  /* border-bottom: 2px solid #ccc !important; */
+}
+
+.report td.penultimate {
+  border-right-style: solid;
+}
+
+.report thead .inner, .report tfoot .inner {
+  text-align: right;
+  padding-right: 5px;
+}
+
+.report .result {
+  font-size: 120%;
+  text-align: right;
+}
+
+#result-table {
+  margin-top: 10px !important;
+  overflow-x: auto;
+}
+
+.report thead tr:hover .inner, .report tfoot tr:hover .inner {
+  background-color: #efefef;
+}
+
+.report .left {
+  text-align: left !important;
+  padding-left: 5px;
+}
+
+.report .right {
+  text-align: right !important;
+  padding-right: 5px;
+}
+
+/* Details view*/
+
+.detail-report td {
+  text-align: left;
+  vertical-align: top;
+}
+
+#query_form fieldset.header_collapsible.collapsible {
+  padding-bottom: 10px;
+}
+
+/* Overwriting styling for headlines within the query. */
+/* TODO: Font-size seems to be a bit odd. Needs some love. */
+.new_report fieldset h3 {
+  font-size: 1.17em;
+  border: none;
+}
+
+.filter {
+  -webkit-border-radius: 5px;
+  -moz-border-radius: 5px;
+  border-radius: 5px;
+}
+
+.inactive-filter {
+  background-color: #FCE29A !important;
+}
+
+.advanced-filters--filter-value {
+  white-space: nowrap;
+}
+
+.filter_radio_option {
+  padding-left: 5px;
+  padding-right: 5px;
+}
+
+#add_filter_block {
+  margin-top: 6px;
+}
+
+#add_filter_select {
+  margin-bottom: 10px;
+}
+
+/* ----- group by --- */
+#group-by--area {
+  margin: 5px 0 10px 0;
+}
+
+#group-by--area fieldset {
+  border: none;
+  padding: 0px;
+  margin-bottom: 1em;
+}
+
+.in_row {
+  display: inline-block;
+  list-style: none;
+  border-width: 0px;
+}
+
+.group-by--selected-element {
+  cursor: move;
+	position: relative;
+  background-color: #767676;
+  padding-left: 14px;
+  margin-left: 18px;
+}
+
+fieldset.collapsible.header_collapsible legend.in_row {
+  width: inherit;
+  background-image: inherit;
+}
+
+.group-by--container {
+  overflow: hidden;
+}
+
+.group-by--label {
+  margin: 0px;
+  padding: 0px 18px 0 0;
+  min-width: 60px;
+  text-align: center;
+  white-space: nowrap;
+  font-weight: bold;
+  color: #fff;
+  height: 36px;
+  line-height: 36px;
+  cursor: move;
+}
+
+.group-by--selected-element:after, .group-by--selected-element:before {
+	border: solid transparent;
+	content: " ";
+	height: 0;
+	width: 0;
+	position: absolute;
+	pointer-events: none;
+	top: 50%;
+	border-width: 30px 0px 30px 14px;
+	margin-top: -30px;
+}
+
+.group-by--selected-element:after {
+	border-color: rgba(118, 118, 118, 0);
+	border-left-color: rgba(118, 118, 118, 1);
+	left: 100%;
+}
+
+.group-by--selected-element:before {
+	border-color: rgba(118, 118, 118, 1);
+	border-left-color: rgba(118, 118, 118, 0);
+	left: -14px;
+}
+
+.group-by--selected-element:hover:after {
+	border-color: rgba(52, 147, 179, 0);
+	border-left-color: rgba(52, 147, 179, 1);
+}
+.group-by--selected-element:hover:before {
+	border-color: rgba(52, 147, 179, 1);
+	border-left-color: rgba(52, 147, 179, 0);
+}
+
+.group-by--selected-element:hover {
+  background-color: #3493B3;
+}
+
+.group-by--remove {
+  line-height: normal;
+  cursor: pointer;
+  color: #FFFFFF;
+}
+
+.group-by--remove:hover {
+  background-color: #3493B3 !important;
+  text-decoration: none;
+  color: #FFFFFF;
+}
+
+.group-by--control {
+  margin: 0;
+  padding: 0;
+}
+
+.group-by--selected-elements {
+  background-color: #EEE;
+  overflow: hidden;
+}
+
+.group-by--caption {
+  position: relative;
+  color: #FFFFFF;
+  background-color: #4B4B4B;
+  font-weight: bold;
+  padding: 0 7px;
+  margin: 0;
+  height: inherit;
+  line-height: 36px;
+  min-width: 55px;
+  overflow: visible;
+}
+
+.group-by--caption:after {
+	left: 100%;
+	top: 50%;
+	border: solid transparent;
+	content: " ";
+	height: 0;
+	width: 0;
+	position: absolute;
+	pointer-events: none;
+}
+
+.group-by--caption:after {
+	border-color: rgba(75, 75, 75, 0);
+	border-left-color: #4B4B4B;
+	border-width: 30px 0px 30px 14px;
+	margin-top: -30px;
+  z-index: 10;
+}
+
+/* Overwrite normal h3 definition - a h-tag is needed for accessibility purposes */
+h3.reporting_formatting {
+  font-weight:normal;
+  font-size: 13px;
+  margin:0px;
+  padding:0px;
+  color:#333;
+  border:0px;
+}
+
+/* -- end group-by -- */
+
+td .drill_down, th .drill_down {
+  font-size: 8px;
+  display: block;
+  float: right;
+  font-weight: bold;
+  visibility: hidden;
+}
+
+td:hover .drill_down, th:hover .drill_down {
+  visibility: visible;
+}
+
+/*Buttons*/
+
+.form_controls {
+  margin-top: 6px;
+}
+
+.form_controls .button {
+  margin-bottom: 0;
+}
+
+div.button_form {
+  /* TODO IE Compatibility! */
+  background-color: white;
+  border: 1px solid gray;
+  -moz-border-radius: 3px;
+  border-radius: 3px;
+  left: 100px;
+  position: absolute;
+  padding: 1.0rem;
+  width: 400px;
+}
+
+/***** Save and Delete Reports ****/
+#save_as_form, #delete_form {
+  z-index: 999;
+}
+
+/* Calendar Fixes */
+div.calendar /* let calendar expand properly */
+{
+  font-size: medium;
+  line-height: normal;
+}
+
+div.calendar table div { /* make sure the nested divs are large enough, too */
+  font-size: medium;
+  line-height: normal;
+}
+
+.calendar .combo .label, .calendar .combo .label-IEfix { /* set the proper size for the combo boxes with months and years */
+  font-size: 10px;
+  line-height: normal;
+}
+
+.calendar tbody .day { /* avoid jitter during quick mouse-overs over days */
+  border: 1px dotted transparent;
+  padding: 1px 3px 1px 1px;
+}
+
+/* Accessibility specific styles */
+fieldset#filters table td > label.hidden-for-sighted, .hidden-for-sighted {
+  position:absolute;
+  left:-10000px;
+  top:auto;
+  width:1px;
+  height:1px;
+  overflow:hidden;
+}
+
+.advanced-filters--filter-value.-binary {
+  display: flex;
+}
+
+@media only screen and (max-width: 679px) {
+  .group-by--control {
+    margin-top: 10px;
+  }
+  #group-by--rows .group-by--caption,
+  #group-by--columns .group-by--caption {
+    padding: 0 7px;
+  }
+  .group-by--selected-element {
+    display: inline-block;
+    padding-left: 7px;
+  }
+  .group-by--selected-element:before,
+  .group-by--selected-element:after {
+    border-width: 18px 0px 18px 14px;
+    margin-top: -18px;
+  }
+  .group-by--selected-element:first-of-type {
+    margin: 0;
+  }
+  .group-by--selected-element:first-of-type:before {
+    border: none;
+    left: 0;
+  }
+}

modules/reporting_engine/lib/assets/stylesheets/reporting_engine/reporting_engine.css

@@ -0,0 +1,23 @@
+/*-- copyright
+ReportingEngine
+
+Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+version 3.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+++*/
+
+/* *
+ *= require reporting_engine/reporting
+ */

modules/reporting_engine/lib/engine.rb

@@ -0,0 +1,36 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module Engine
+  ##
+  # Subclass of Report to be used for constant lookup and such.
+  # It is considered public API to override this method i.e. in Tests.
+  #
+  # @return [Class] subclass
+  def engine
+    return @engine if @engine
+    if is_a? Module
+      @engine = Object.const_get(name[/^[^:]+/] || :Report)
+    elsif respond_to? :parent and parent.respond_to? :engine
+      parent.engine
+    else
+      self.class.engine
+    end
+  end
+end

modules/reporting_engine/lib/report.rb

@@ -0,0 +1,213 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report < ActiveRecord::Base
+  extend Forwardable
+  include Enumerable
+  include Engine
+
+  belongs_to :user
+  belongs_to :project
+
+  before_save :serialize
+  serialize :serialized, Hash
+
+  self.abstract_class = true # lets have subclasses have their own SQL tables
+
+  def self.accepted_properties
+    @@accepted_properties ||= []
+  end
+
+  def self.reporting_connection
+    connection
+  end
+
+  def self.chain_initializer
+    @chain_initializer ||= []
+  end
+
+  def self.deserialize(hash, object = new)
+    object.tap do |q|
+      hash[:filters].each { |name, opts| q.filter(name, opts) }
+      hash[:group_bys].each { |name, opts| q.group_by(name, opts) }
+    end
+  end
+
+  def serialize
+    # have to take the reverse group_bys to retain the original order when deserializing
+    self.serialized = { filters: (filters.map(&:serialize).reject(&:nil?).sort { |a, b| a.first <=> b.first }),
+                        group_bys: group_bys.map(&:serialize).reject(&:nil?).reverse }
+  end
+
+  def deserialize
+    unless @chain
+      hash = serialized || serialize
+      self.class.deserialize(hash, self)
+    else
+      raise ArgumentError, 'Cannot deserialize a report which already has a chain'
+    end
+  end
+
+  # Convenience method to generate a params hash readable by Controller#determine_settings
+  def to_params
+    params = {}
+    filters.select { |f| f.class.display? }.each do |f|
+      filter_name = f.class.underscore_name
+      params[:fields] << filter_name
+      params[:operators].merge! filter_name => f.operator.to_s
+      params[:values].merge! filter_name => f.values
+    end
+    group_bys.each do |g|
+      params[:groups] ||= { rows: [], columns: [] }
+      params[:groups][g.row? ? :rows : :columns] << g.class.underscore_name
+    end
+    params
+  end
+
+  ##
+  # Migrates this report to look like the given report.
+  # This may be used to alter report properties without
+  # creating a new report in a database.
+  def migrate(report)
+    [:@chain, :@query, :@transformer, :@walker, :@table, :@depths, :@chain_initializer].each do |inst_var|
+      instance_variable_set inst_var, (report.instance_variable_get inst_var)
+    end
+  end
+
+  def available_filters
+    self.class::Filter.all
+  end
+
+  def transformer
+    @transformer ||= self.class::Transformer.new self
+  end
+
+  def walker
+    @walker ||= self.class::Walker.new self
+  end
+
+  def add_chain(type, name, options)
+    chain type.const_get(name.to_s.camelcase), options
+    @transformer, @table, @depths, @walker = nil, nil, nil, nil
+    self
+  end
+
+  def chain(klass = nil, options = {})
+    build_new_chain unless @chain
+    if klass
+      @chain = klass.new @chain, options
+      @chain.engine = self.class
+    end
+    @chain = @chain.parent until @chain.top?
+    @chain
+  end
+
+  def build_new_chain
+    # FIXME: is there a better way to load all filter and groups?
+    self.class::Filter.all && self.class::GroupBy.all
+
+    minimal_chain!
+    self.class.chain_initializer.each { |block| block.call self }
+    self
+  end
+
+  def filter(name, options = {})
+    add_chain self.class::Filter, name, options
+  end
+
+  def group_by(name, options = {})
+    add_chain self.class::GroupBy, name, options.reverse_merge(type: :column)
+  end
+
+  def column(name, options = {})
+    group_by name, options.merge(type: :column)
+  end
+
+  def row(name, options = {})
+    group_by name, options.merge(type: :row)
+  end
+
+  def table
+    @table = self.class::Table.new(self)
+  end
+
+  def group_bys(type = nil)
+    chain.select { |c| c.group_by? && (type.nil? || c.type == type) }
+  end
+
+  def filters
+    chain.select(&:filter?)
+  end
+
+  def depth_of(name)
+    @depths ||= {}
+    @depths[name] ||= chain.inject(0) { |sum, child| child.type == name ? sum + 1 : sum }
+  end
+
+  def_delegators :transformer, :column_first, :row_first
+  def_delegators :chain, :empty_chain, :top, :bottom, :chain_collect, :sql_statement, :all_group_fields, :child, :clear, :result
+  def_delegators :result, :each_direct_result, :recursive_each, :recursive_each_with_level, :each, :each_row, :count,
+                 :units, :final_number
+  def_delegators :table, :row_index, :colum_index
+
+  def to_a
+    chain.to_a
+  end
+
+  def to_s
+    chain.to_s
+  end
+
+  def size
+    size = 0
+    recursive_each { |r| size += r.size }
+    size
+  end
+
+  def cache_key
+    deserialize unless @chain
+    parts = [self.class.table_name.sub('_reports', '')]
+    parts.concat [filters.sort, group_bys].map { |l| l.map(&:cache_key).join(' ') }
+    parts.join '/'
+  end
+
+  def self.engine
+    self
+  end
+
+  def minimal_chain!
+    @chain = self.class::Filter::NoFilter.new
+  end
+
+  def public!
+    self.is_public = true
+  end
+
+  def public?
+    is_public
+  end
+
+  def private!
+    self.is_public = false
+  end
+
+  def private?
+    !public?
+  end
+end

modules/reporting_engine/lib/report/chainable.rb

@@ -0,0 +1,335 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+# Provides convinience layer and logic shared between GroupBy::Base and Filter::Base.
+# Implements a double linked list (FIXME: is that the correct term?).
+class Report < ActiveRecord::Base
+  class Chainable
+    include Enumerable
+    include Report::QueryUtils
+    extend Report::InheritedAttribute
+    extend Forwardable
+
+    # this attr. should point to a symbol useable for translations
+    inherited_attribute :applies_for, default: :label_cost_entry_attributes
+    def_delegators :'self.class', :table_joins, :table_name, :field, :display?, :underscore_name
+
+    def self.accepts_property(*list)
+      engine.accepted_properties.push(*list.map(&:to_s))
+    end
+
+    def self.chain_list(*list)
+      options = list.extract_options!
+      options[:list] = true
+      list << options
+      inherited_attribute(*list)
+    end
+
+    def self.base?
+      superclass == engine::Chainable or self == engine::Chainable or
+        superclass == Chainable or self == Chainable or
+        self == engine::Filter::Base or self == engine::GroupBy::Base
+    end
+
+    def self.base
+      return self if base?
+      superclass.base
+    end
+
+    def self.from_base(&block)
+      base.instance_eval(&block)
+    end
+
+    def self.available
+      from_base { @available ||= [] }
+    end
+
+    def self.register(label)
+      available << klass
+      set_inherited_attribute 'label', label
+    end
+
+    def self.table_joins
+      (@table_joins ||= []).clone
+    end
+
+    def self.table_from(value)
+      return value.table_name if value.respond_to? :table_name
+      return value unless value.respond_to? :to_ary or value.respond_to? :to_hash
+      table_from value.to_a.first
+    end
+
+    def self.join_table(*args)
+      @last_table = table_from(args.last)
+      (@table_joins ||= []) << args
+    end
+
+    def self.underscore_name
+      name.demodulize.underscore
+    end
+
+    def self.put_sql_table_names(table_prefix_placement = {})
+      @table_prefix_placement ||= {}
+      @table_prefix_placement.merge! table_prefix_placement
+      @table_prefix_placement
+    end
+
+    ##
+    # The given block is called when a new chain is created for a report.
+    # The query will be given to the block as a parameter.
+    # Example:
+    # initialize_query_with { |query| query.filter Report::Filter::City, :operators => '=', :values => 'Berlin, da great City' }
+    def self.initialize_query_with(&block)
+      engine.chain_initializer.push block
+    end
+
+    def self.cache_key
+      @cache_key ||= underscore_name
+    end
+
+    inherited_attribute :properties, list: true
+
+    def self.label
+      'Translation needed'
+    end
+
+    class << self
+      alias inherited_attributes inherited_attribute
+      alias accepts_properties accepts_property
+    end
+
+    attr_accessor :parent, :child, :type
+    accepts_property :type
+
+    def each(&block)
+      yield self
+      child.try(:each, &block)
+    end
+
+    def row?
+      type == :row
+    end
+
+    def column?
+      type == :column
+    end
+
+    def group_by?
+      !filter?
+    end
+
+    def to_a
+      [to_hash].tap { |a| a.unshift(*child.to_a) unless bottom? }
+    end
+
+    def top
+      return self if top?
+      parent.top
+    end
+
+    def top?
+      parent.nil?
+    end
+
+    def bottom?
+      child.nil?
+    end
+
+    def bottom
+      return self if bottom?
+      child.bottom
+    end
+
+    def initialize(child = nil, options = {})
+      @options = options
+      options.each do |key, value|
+        unless self.class.extra_options.include? key
+          raise ArgumentError, "may not set #{key}" unless engine.accepted_properties.include? key.to_s
+          send "#{key}=", value
+        end
+      end
+      self.child, child.parent = child, self if child
+      move_down until correct_position?
+      clear
+    end
+
+    def to_a
+      cached :compute_to_a
+    end
+
+    def compute_to_a
+      [[self.class.field, @options], *child.try(:to_a)].compact
+    end
+
+    def to_s
+      URI.escape to_a.map(&:join).join(',')
+    end
+
+    def serialize
+      [self.class.to_s.demodulize, @options]
+    end
+
+    def move_down
+      reorder parent, child, self, child.child
+    end
+
+    ##
+    # Reorder given elements of a doubly linked list to follow the lists order.
+    # Don't use this for evil. Assumes there are no elements inbetween, does
+    # not touch the first element's parent and the last element's child.
+    # Does not touch elements not part of the list.
+    #
+    # @param [Array] *list Part of the linked list
+    def reorder(*list)
+      list.each_with_index do |entry, index|
+        next_entry = list[index + 1]
+        entry.try(:child=, next_entry) if index < list.size - 1
+        next_entry.try(:parent=, entry)
+      end
+    end
+
+    def chain_collect(name, *args, &block)
+      top.subchain_collect(name, *args, &block)
+    end
+
+    # See #chain_collect
+    def subchain_collect(name, *args, &block)
+      subchain = child.subchain_collect(name, *args, &block) unless bottom?
+      [* send(name, *args, &block)].push(*subchain).compact.uniq
+    end
+
+    # overwrite in subclass to maintain constisten state
+    # ie automatically turning
+    #   FilterFoo.new(GroupByFoo.new(FilterBar.new))
+    # into
+    #   GroupByFoo.new(FilterFoo.new(FilterBar.new))
+    # Returning false will make the
+    def correct_position?
+      true
+    end
+
+    def clear
+      @cached = nil
+      child.try :clear
+    end
+
+    def result
+      cached(:compute_result)
+    end
+
+    def compute_result
+      engine::Result.new engine.reporting_connection.select_all(sql_statement.to_s), {}, type
+    end
+
+    def cached(*args)
+      @cached ||= {}
+      @cached[args] ||= send(*args)
+    end
+
+    def sql_statement
+      raise "should not get here (#{inspect})" if bottom?
+      child.cached(:sql_statement).tap do |q|
+        chain_collect(:table_joins).each { |args| q.join(*args) } if responsible_for_sql?
+      end
+    end
+
+    inherited_attribute :db_field
+    def self.field
+      db_field || (name[/[^:]+$/] || name).to_s.underscore
+    end
+
+    def display?
+      self.class.display?
+    end
+
+    inherited_attribute :display, default: true
+    def self.display!
+      display true
+    end
+
+    def self.display?
+      !!display
+    end
+
+    def self.dont_display!
+      display false
+      not_selectable!
+    end
+
+    inherited_attribute :selectable, default: true
+    def self.selectable!
+      selectable true
+    end
+
+    def self.selectable?
+      !!selectable
+    end
+
+    def self.not_selectable!
+      selectable false
+    end
+
+    # Extra options this chainable accepts that are not defined in accepted_properties
+    def self.extra_options(*symbols)
+      @extra_option ||= []
+      @extra_option += symbols
+    end
+
+    # This chainable type can only ever occur once in a chain
+    def self.singleton
+      class << self
+        def new(chain = nil, options = {})
+          return chain if chain and chain.map(&:class).include? self
+          super
+        end
+      end
+    end
+
+    def self.last_table
+      @last_table ||= engine::Filter::NoFilter.table_name
+    end
+
+    def self.table_name(value = nil)
+      @table_name = table_name_for(value) if value
+      @table_name || last_table
+    end
+
+    def with_table(fields)
+      fields.map do |f|
+        place_field_name = self.class.put_sql_table_names[f] || self.class.put_sql_table_names[f].nil?
+        place_field_name ? (field_name_for f, self) : f
+      end
+    end
+
+    def mapping
+      self.class.method(:mapping).to_proc
+    end
+
+    def self.mapping(value)
+      value.to_s
+    end
+
+    def self.mapping_for(field)
+      @field_map ||= (engine::Filter.all + engine.GroupBy.all).inject(Hash.new { |h, k| h[k] = [] }) do |hash, cbl|
+        hash[cbl.field] << cbl.mapping
+      end
+      @field_map[field]
+    end
+  end
+end

modules/reporting_engine/lib/report/controller.rb

@@ -0,0 +1,338 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+require 'json'
+
+module Report::Controller
+  def self.included(base)
+    base.class_eval do
+      attr_accessor :report_engine
+      helper_method :current_user
+      helper_method :allowed_to?
+
+      include ReportingHelper
+      helper ReportingHelper
+      helper { def engine; @report_engine; end }
+
+      before_action :determine_engine
+      before_action :prepare_query, only: [:index, :create]
+      before_action :find_optional_report, only: [:index, :show, :update, :destroy, :rename]
+      before_action :possibly_only_narrow_values
+    end
+  end
+
+  def index
+    table
+  end
+
+  ##
+  # Render the report. Renders either the complete index or the table only
+  def table
+    if set_filter? && request.xhr?
+      self.response_body = render_widget(Widget::Table, @query)
+    end
+  end
+
+  ##
+  # Create a new saved query. Returns the redirect url to an XHR or redirects directly
+  def create
+    @query.name = params[:query_name].present? ? params[:query_name] : ::I18n.t(:label_default)
+    @query.public! if make_query_public?
+    @query.send("#{user_key}=", current_user.id)
+    @query.save!
+    if request.xhr? # Update via AJAX - return url for redirect
+      render plain: url_for(action: 'show', id: @query.id)
+    else # Redirect to the new record
+      redirect_to action: 'show', id: @query.id
+    end
+  end
+
+  ##
+  # Show a saved record, if found. Raises RecordNotFound if the specified query
+  # at :id does not exist
+  def show
+    if @query
+      store_query(@query)
+      table
+      render action: 'index' unless performed?
+    else
+      raise ActiveRecord::RecordNotFound
+    end
+  end
+
+  ##
+  # Delete a saved record, if found. Redirects to index on success, raises a
+  # RecordNotFound if the query at :id does not exist
+  def destroy
+    if @query
+      @query.destroy if allowed_to? :destroy, @query
+    else
+      raise ActiveRecord::RecordNotFound
+    end
+    redirect_to action: 'index', default: 1
+  end
+
+  ##
+  # Update a record with new query parameters and save it. Redirects to the
+  # specified record or renders the updated table on XHR
+  def update
+    if params[:set_filter].to_i == 1 # save
+      old_query = @query
+      prepare_query
+      old_query.migrate(@query)
+      old_query.save!
+      @query = old_query
+    end
+    if request.xhr?
+      table
+    else
+      redirect_to action: 'show', id: @query.id
+    end
+  end
+
+  ##
+  # Rename a record and update its publicity. Redirects to the updated record or
+  # renders the updated name on XHR
+  def rename
+    @query.name = params[:query_name]
+    @query.public! if make_query_public?
+    @query.save!
+    store_query(@query)
+    unless request.xhr?
+      redirect_to action: 'show', id: @query.id
+    else
+      render plain: @query.name
+    end
+  end
+
+  ##
+  # Determine the available values for the specified filter and return them as
+  # json, if that was requested. This will be executed INSTEAD of the actual action
+  def possibly_only_narrow_values
+    if params[:narrow_values] == '1'
+      sources = params[:sources]
+      dependent = params[:dependent]
+
+      query = report_engine.new
+      sources.each do |dependency|
+        query.filter(dependency.to_sym,
+                     operator: params[:operators][dependency],
+                     values: params[:values][dependency])
+      end
+      query.column(dependent)
+      values = [[::I18n.t(:label_inactive), '<<inactive>>']] + query.result.map { |r| r.fields[query.group_bys.first.field] }
+      # replace null-values with corresponding placeholder
+      values = values.map { |value| value.nil? ? [::I18n.t(:label_none), '<<null>>'] : value }
+      # try to find corresponding labels to the given values
+      values = values.map do |value|
+        filter = report_engine::Filter.const_get(dependent.camelcase.to_sym)
+        filter_value = filter.label_for_value value
+        if filter_value && filter_value.first.is_a?(Symbol)
+          [::I18n.t(filter_value.first), filter_value.second]
+        elsif filter_value && filter_value.first.is_a?(String)
+          [filter_value.first, filter_value.second]
+        else
+          value
+        end
+      end
+      render json: values.to_json
+    end
+  end
+
+  ##
+  # Determine the requested engine by constantizing from the :engine parameter
+  # Sets @report_engine and @title based on that, and makes the engine available
+  # to views and widgets via the #engine method.
+  # Raises RecordNotFound on failure
+  def determine_engine
+    @report_engine = params[:engine].constantize
+    @title = "label_#{@report_engine.name.underscore}"
+  rescue NameError
+    raise ActiveRecord::RecordNotFound, 'No engine found - override #determine_engine'
+  end
+
+  ##
+  # Determines if the request contains filters to set
+  def set_filter? # FIXME: rename to set_query?
+    params[:set_filter].to_i == 1
+  end
+
+  ##
+  # Return the active filters
+  def filter_params
+    filters = http_filter_parameters if set_filter?
+    filters ||= session[report_engine.name.underscore.to_sym].try(:[], :filters)
+    filters ||= default_filter_parameters
+  end
+
+  ##
+  # Return the active group bys
+  def group_params
+    groups = http_group_parameters if set_filter?
+    groups ||= session[report_engine.name.underscore.to_sym].try(:[], :groups)
+    groups ||= default_group_parameters
+  end
+
+  ##
+  # Extract active filters from the http params
+  def http_filter_parameters
+    params[:fields] ||= []
+    (params[:fields].reject(&:empty?) || []).inject(operators: {}, values: {}) do |hash, field|
+      hash[:operators][field.to_sym] = params[:operators][field]
+      hash[:values][field.to_sym] = params[:values][field]
+      hash
+    end
+  end
+
+  ##
+  # Extract active group bys from the http params
+  def http_group_parameters
+    if params[:groups]
+      rows = params[:groups]['rows']
+      columns = params[:groups]['columns']
+    end
+    { rows: (rows || []), columns: (columns || []) }
+  end
+
+  ##
+  # Set a default query to cut down initial load time
+  def default_filter_parameters
+    { operators: {}, values: {} }
+  end
+
+  ##
+  # Set a default query to cut down initial load time
+  def default_group_parameters
+    { columns: [:sector_id], rows: [:country_id] }
+  end
+
+  ##
+  # Determines if the query settings should be reset
+  def force_default?
+    params[:default].to_i == 1
+  end
+
+  ##
+  # Prepare the query from the request
+  def prepare_query
+    determine_settings
+    @query = build_query(session[report_engine.name.underscore.to_sym][:filters],
+                         session[report_engine.name.underscore.to_sym][:groups])
+  end
+
+  ##
+  # Determine the query settings the current request and save it to
+  # the session.
+  def determine_settings
+    if force_default?
+      filters = default_filter_parameters
+      groups  = default_group_parameters
+      session[report_engine.name.underscore.to_sym].try :delete, :name
+    else
+      filters = filter_params
+      groups  = group_params
+    end
+    cookie = session[report_engine.name.underscore.to_sym] || {}
+    session[report_engine.name.underscore.to_sym] = cookie.merge(filters: filters, groups: groups)
+  end
+
+  ##
+  # Build the query from the passed session hash
+  def build_query(filters, groups = {})
+    query = report_engine.new
+    query.tap do |q|
+      filters[:operators].each do |filter, operator|
+        unless filters[:values][filter] == ['<<inactive>>']
+          values = Array(filters[:values][filter]).map { |v| v == '<<null>>' ? nil : v }
+          q.filter(filter.to_sym,
+                   operator: operator,
+                   values: values)
+        end
+      end
+    end
+    groups[:columns].try(:reverse_each) { |c| query.column(c) }
+    groups[:rows].try(:reverse_each) { |r| query.row(r) }
+    query
+  end
+
+  ##
+  # Store query in the session
+  def store_query(_query)
+    cookie = {}
+    cookie[:groups] = @query.group_bys.inject({}) do |h, group|
+      ((h[:"#{group.type}s"] ||= []) << group.underscore_name.to_sym) && h
+    end
+    cookie[:filters] = @query.filters.inject(operators: {}, values: {}) do |h, filter|
+      h[:operators][filter.underscore_name.to_sym] = filter.operator.to_s
+      h[:values][filter.underscore_name.to_sym] = filter.values
+      h
+    end
+    cookie[:name] = @query.name if @query.name
+    session[report_engine.name.underscore.to_sym] = cookie
+  end
+
+  ##
+  # Override in subclass if user key
+  def user_key
+    'user_id'
+  end
+
+  ##
+  # Override in subclass if you like
+  def is_public_sql(val = true)
+    "(is_public = #{val ? report_engine.reporting_connection.quoted_true : report_engine.reporting_connection.quoted_false})"
+  end
+
+  ##
+  # Abstract: Implementation required in application
+  def allowed_to?(_action, _subject, _user = current_user)
+    raise NotImplementedError, "The #{self.class} should have implemented #allowed_to?(action, subject, user)"
+  end
+
+  def make_query_public?
+    !!params[:query_is_public]
+  end
+
+  # renders option tags for each available value for a single filter
+  def available_values
+    if name = params[:filter_name]
+      f_cls = report_engine::Filter.const_get(name.to_s.camelcase)
+      filter = f_cls.new.tap do |f|
+        f.values = JSON.parse(params[:values].gsub("'", '"')) if params[:values].present? and params[:values]
+      end
+      render_widget Widget::Filters::Option, filter, to: canvas = ''
+      render plain: canvas, layout: !request.xhr?
+    end
+  end
+
+  ##
+  # Find a report if :id was passed as parameter.
+  # Raises RecordNotFound if an invalid :id was passed.
+  #
+  # @param query An optional query added to the disjunction qualifiying reports to be returned.
+  def find_optional_report(query = '1=0')
+    if params[:id]
+      @query = report_engine
+               .where(["#{is_public_sql} OR (#{user_key} = ?) OR (#{query})", current_user.id])
+               .find(params[:id].to_i)
+      @query.deserialize if @query
+    end
+  rescue ActiveRecord::RecordNotFound
+  end
+end

modules/reporting_engine/lib/report/filter.rb

@@ -0,0 +1,38 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+require 'set'
+
+class Report::Filter
+  def self.all
+    @all ||= Set[]
+  end
+
+  def self.reset!
+    @all = nil
+  end
+
+  def self.all_grouped
+    all.group_by(&:applies_for).to_a.sort { |a, b| a.first.to_s <=> b.first.to_s }
+  end
+
+  def self.from_hash
+    raise NotImplementedError
+  end
+end

modules/reporting_engine/lib/report/filter/base.rb

@@ -0,0 +1,186 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::Filter
+  class Base < Report::Chainable
+    include Report::QueryUtils
+    engine::Operator.load
+
+    inherited_attribute :available_operators,
+                        list: true, map: :to_operator,
+                        uniq: true
+    inherited_attribute :default_operator, map: :to_operator
+
+    accepts_property :values, :value, :operator
+
+    mattr_accessor :skip_inherited_operators
+    self.skip_inherited_operators = [:time_operators, 'y', 'n']
+
+    attr_accessor :values
+
+    def cache_key
+      self.class.cache_key + operator.to_s + Array(values).join(',')
+    end
+
+    ##
+    # A Filter is 'heavy' if it possibly returns a _hughe_ number of available_values.
+    # In that case the UI-guys should think twice about displaying all the values.
+    def self.heavy?
+      false
+    end
+
+    # Indicates whether this Filter is a multiple choice filter,
+    # meaning that the user must select a value of a given set of choices.
+    def self.is_multiple_choice?
+      false
+    end
+
+    # need this for sort
+    def <=>(other)
+      self.class.underscore_name <=> other.class.underscore_name
+    end
+
+    def self.cached(*args)
+      @cached ||= {}
+      @cached[args] ||= send(*args)
+    end
+
+    def value=(val)
+      self.values = [val]
+    end
+
+    ##
+    # Always empty. You may include additional_operators as a filter module.
+    # This is here for the case you don't.
+    def additional_operators
+      []
+    end
+
+    def self.use(*names)
+      operators = []
+      names.each do |name|
+        dont_inherit :available_operators if skip_inherited_operators.include? name
+        case name
+        when String, engine::Operator then operators << name.to_operator
+        when Symbol then operators.push(*engine::Operator.send(name))
+        else fail "dunno what to do with #{name.inspect}"
+        end
+      end
+      available_operators *operators
+    end
+
+    use :default_operators
+
+    def self.new(*args, &block) # :nodoc:
+      # this class is abstract. instances are only allowed from child classes
+      raise "#{name} is an abstract class" if base?
+      super
+    end
+
+    def self.inherited(klass)
+      if base?
+        self.dont_display!
+        klass.display!
+      end
+      super
+    end
+
+    ##
+    # Returns an array of [:label_of_value, value]-kind arrays, containing
+    # valid id-label combinations of possible filter values
+    def self.available_values(_params = {})
+      []
+    end
+
+    ##
+    # Returns a [:label_of_value, value]-kind array (as in self.vailable_values)
+    # for the given value
+    def self.label_for_value(value)
+      available_values(reverse_search: true).find { |v| v.second == value || v.second.to_s == value }
+    end
+
+    def correct_position?
+      child.nil? or child.filter?
+    end
+
+    def from_for(scope)
+      super + self.class.table_joins
+    end
+
+    def filter?
+      true
+    end
+
+    def valid?
+      @operator ? @operator.validate(values) : true
+    end
+
+    def errors
+      @operator ? @operator.errors : []
+    end
+
+    def group_by_fields
+      []
+    end
+
+    def initialize(child = nil, options = {})
+      @values = []
+      super
+    end
+
+    def might_be_responsible
+      parent
+    end
+
+    def operator
+      (@operator || self.class.default_operator || engine::Operator.default_operator).to_operator
+    end
+
+    def operator=(value)
+      @operator = value.to_operator.tap do |o|
+        unless available_operators.include?(o) || additional_operators.include?(o)
+          raise ArgumentError, "#{o.inspect} not supported by #{inspect}."
+        end
+      end
+    end
+
+    def responsible_for_sql?
+      top?
+    end
+
+    def to_hash
+      raise NotImplementedError
+    end
+
+    def transformed_values
+      values
+    end
+
+    def sql_statement
+      super.tap do |query|
+        arity   = operator.arity
+        query_values  = [*transformed_values].compact
+        # if there is just the nil it might be actually intendet to be there
+        query_values.unshift nil if Array(self.values).size == 1 && Array(self.values).first.nil?
+        query_values  = query_values[0, arity] if query_values and arity >= 0 and arity != query_values.size
+        operator.modify(query, field, *query_values) unless field.empty?
+      end
+    end
+  end
+end

modules/reporting_engine/lib/report/filter/multi_choice.rb

@@ -0,0 +1,29 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::Filter
+  class MultiChoice < Base
+    dont_inherit :available_operators
+    use '='
+
+    def self.is_multiple_choice?
+      true
+    end
+  end
+end

modules/reporting_engine/lib/report/filter/no_filter.rb

@@ -0,0 +1,28 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::Filter::NoFilter < Report::Filter::Base
+  table_name 'entries'
+  dont_display!
+  singleton
+
+  def sql_statement
+    raise NotImplementedError, "My subclass should have overwritten 'sql_statement'"
+  end
+end

modules/reporting_engine/lib/report/group_by.rb

@@ -0,0 +1,40 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+require 'set'
+
+class Report::GroupBy
+  include Report::QueryUtils
+
+  def self.all
+    Set[engine::GroupBy::SingletonValue]
+  end
+
+  def self.reset!
+    @all = nil
+  end
+
+  def self.all_grouped
+    all.group_by(&:applies_for).to_a.sort { |a, b| a.first.to_s <=> b.first.to_s }
+  end
+
+  def self.from_hash
+    raise NotImplementedError
+  end
+end

modules/reporting_engine/lib/report/group_by/base.rb

@@ -0,0 +1,108 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::GroupBy
+  class Base < Report::Chainable
+    include Report::QueryUtils
+
+    inherited_attributes :group_fields, list: true, merge: false
+
+    def correct_position?
+      type == :row or !child.is_a?(Report::GroupBy::Base) or child.type == :column
+    end
+
+    def filter?
+      false
+    end
+
+    def sql_aggregation?
+      child.filter?
+    end
+
+    def cache_key
+      self.class.cache_key + type.to_s[0, 1]
+    end
+
+    ##
+    # @param [FalseClass, TrueClass] prefix Whether or not add a table prefix the field names
+    # @return [Array<String,Symbol>] List of group by fields corresponding to self and all parents'
+    def all_group_fields(prefix = true)
+      @all_group_fields ||= []
+      @all_group_fields[prefix ? 0 : 1] ||= begin
+        fields = group_fields.reject { |c| c.blank? or c == 'base' }
+        (parent ? parent.all_group_fields(prefix) : []) + (prefix ? with_table(fields) : fields)
+      end.uniq
+    end
+
+    def self.select_fields(*fields)
+      unless fields.empty?
+        @select_fields ||= []
+        @select_fields += fields
+      end
+      @select_fields
+    end
+
+    def select_fields
+      # + (parent ? parent.select_fields : [])
+      self.class.select_fields ? self.class.select_fields : group_fields
+    end
+
+    ##
+    # @param [FalseClass, TrueClass] prefix Whether or not add a table prefix the field names
+    # @return [Array<String,Symbol>] List of select fields corresponding to self and all parents'
+    def all_select_fields(prefix = true)
+      @all_select_fields ||= []
+      @all_select_fields[prefix ? 0 : 1] ||= begin
+        fields = select_fields.reject { |c| c.blank? or c == 'base' }
+        (parent ? parent.all_select_fields(prefix) : []) + (prefix ? with_table(fields) : fields)
+      end.uniq
+    end
+
+    def clear
+      @all_group_fields = @all_select_fields = nil
+      super
+    end
+
+    def aggregation_mixin
+      sql_aggregation? ? engine::GroupBy::SqlAggregation : engine::GroupBy::RubyAggregation
+    end
+
+    def initialize(child = nil, optios = {})
+      super
+      extend aggregation_mixin
+      group_fields field
+    end
+
+    def result
+      super
+    end
+
+    def compute_result
+      super.tap do |r|
+        r.type = type
+        r.important_fields = group_fields
+      end
+    end
+
+    def define_group(sql)
+      sql.select all_select_fields
+      sql.group_by all_group_fields(true)
+    end
+  end
+end

modules/reporting_engine/lib/report/group_by/ruby_aggregation.rb

@@ -0,0 +1,32 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::GroupBy
+  module RubyAggregation
+    def responsible_for_sql?
+      false
+    end
+
+    ##
+    # @return [Report::Result] aggregation
+    def compute_result
+      child.result.grouped_by(all_group_fields(false), type, group_fields)
+    end
+  end
+end

modules/reporting_engine/lib/report/group_by/singleton_value.rb

@@ -0,0 +1,32 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::GroupBy
+  class SingletonValue < Base
+    dont_display!
+
+    put_sql_table_names 'singleton_value' => false
+    select_fields '1 as singleton_value'
+
+    def define_group(sql)
+      sql.select '1 as singleton_value'
+      sql.group_by 'singleton_value'
+    end
+  end
+end

modules/reporting_engine/lib/report/group_by/sql_aggregation.rb

@@ -0,0 +1,37 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::GroupBy
+  module SqlAggregation
+    def responsible_for_sql?
+      true
+    end
+
+    def compute_result
+      super.tap { |r| r.important_fields = group_fields }.grouped_by(all_group_fields(false), type, group_fields)
+    end
+
+    def sql_statement
+      super.tap do |sql|
+        define_group sql
+        sql.count unless sql.selects.include? 'count'
+      end
+    end
+  end
+end

modules/reporting_engine/lib/report/inherited_attribute.rb

@@ -0,0 +1,81 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+require 'set'
+
+module Report::InheritedAttribute
+  include Report::QueryUtils
+
+  def inherited_attribute(*attributes)
+    options = attributes.extract_options!
+    list    = options[:list]
+    merge   = options.include?(:merge) ? options[:merge] : options[:list]
+    default = options[:default]
+    uniq    = options[:uniq]
+    map     = options[:map] || proc { |e| e }
+    default ||= [] if list
+    attributes.each do |name|
+      define_singleton_method(name) do |*values|
+        # FIXME: I'm ugly
+        return get_inherited_attribute(name, default, list, uniq) if values.empty?
+        if list
+          old = instance_variable_get("@#{name}") if merge
+          old ||= []
+          return set_inherited_attribute(name, values.map(&map) + old)
+        end
+        raise ArgumentError, "wrong number of arguments (#{values.size} for 1)" if values.size > 1
+        set_inherited_attribute name, map.call(values.first)
+      end
+      define_method(name) { |*values| self.class.send(name, *values) }
+    end
+    end
+
+  def define_singleton_method(name, &block)
+    singleton_class.send :attr_writer, name
+    singleton_class.class_eval { define_method(name, &block) }
+    define_method(name) { instance_variable_get("@#{name}") or singleton_class.send(name) }
+  end
+
+  def get_inherited_attribute(name, default = nil, list = false, uniq = false)
+    return get_inherited_attribute(name, default, list, false).uniq if list and uniq
+    result = instance_variable_get("@#{name}")
+    super_result = superclass.get_inherited_attribute(name, default, list) if inherit? name
+    if result.nil?
+      super_result || default
+    else
+      list && super_result ? result + super_result : result
+    end
+  end
+
+  def inherit?(name)
+    superclass.respond_to? :get_inherited_attribute and not not_inherited.include? name
+  end
+
+  def not_inherited
+    @not_inherited ||= Set.new
+  end
+
+  def dont_inherit(*attributes)
+    not_inherited.merge attributes
+  end
+
+  def set_inherited_attribute(name, value)
+    instance_variable_set "@#{name}", value
+  end
+end

modules/reporting_engine/lib/report/operator.rb

@@ -0,0 +1,374 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::Operator
+  include Report::QueryUtils
+  include Report::Validation
+  extend Forwardable
+
+  #############################################################################################
+  # Wrapped so we can place this at the top of the file.
+  def self.define_operators # :nodoc:
+    # Defaults
+    defaults do
+      def_delegators :'singleton_class', :forced?, :force!, :forced
+
+      def sql_operator
+        name
+      end
+
+      def where_clause
+        "%s %s '%s'"
+      end
+
+      def modify(query, field, *values)
+        query.where [where_clause, field, sql_operator, *values]
+        query
+      end
+
+      def label
+        @label ||= self.class.name
+      end
+    end
+
+    # Operators from Redmine
+    new '>t-', label: :label_less_than_ago do
+      include DateRange
+      def modify(query, field, value)
+        super query, field, -value.to_i, 0
+      end
+    end
+
+    new 'w', arity: 0, label: :label_this_week do
+      def modify(query, field, offset = nil)
+        offset  ||= 0
+        first_day = begin
+          Integer I18n.t(:general_first_day_of_week)
+        rescue ArgumentError
+          1 # assume mondays
+        end
+
+        from  = Time.now.at_beginning_of_week + ((first_day % 7) - 1).days
+        from -= offset.days
+        '<>d'.to_operator.modify query, field, from, from + 7.days
+      end
+    end
+
+    new 't+', label: :label_in do
+      include DateRange
+      def modify(query, field, *values)
+        super query, field, values.first.to_i, values.first.to_i
+      end
+    end
+
+    new '<=', label: :label_less_or_equal
+
+    new '!', label: :label_not_equals do
+      def modify(query, field, *values)
+        where_clause = "(#{field} IS NULL"
+        where_clause += " OR #{field} NOT IN #{collection(*values)}" unless values.compact.empty?
+        where_clause += ')'
+        query.where where_clause
+        query
+      end
+    end
+
+    new 't-', label: :label_ago do
+      include DateRange
+      def modify(query, field, *values)
+        super query, field, -values.first.to_i, -values.first.to_i
+      end
+    end
+
+    new '!~', arity: 1, label: :label_not_contains do
+      def modify(query, field, *values)
+        value = values.first || ''
+        query.where "LOWER(#{field}) NOT LIKE '%#{quote_string(value.to_s.downcase)}%'"
+        query
+      end
+    end
+
+    new '=', label: :label_equals do
+      def modify(query, field, *values)
+        case
+        when values.size == 1 && values.first.nil?
+          query.where "#{field} IS NULL"
+        when values.compact.empty?
+          query.where '1=0'
+        else
+          query.where "#{field} IN #{collection(*values)}"
+        end
+        query
+      end
+    end
+
+    new '~', arity: 1, label: :label_contains do
+      def modify(query, field, *values)
+        value = values.first || ''
+        query.where "LOWER(#{field}) LIKE '%#{quote_string(value.to_s.downcase)}%'"
+        query
+      end
+    end
+
+    new '<t+', label: :label_in_less_than do
+      include DateRange
+      def modify(query, field, value)
+        super query, field, 0, value.to_i
+      end
+    end
+
+    new 't', label: :label_today do
+      include DateRange
+      def modify(query, field)
+        super query, field, 0, 0
+      end
+    end
+
+    new '>=', label: :label_greater_or_equal
+
+    new '!*', arity: 0, where_clause: '%s IS NULL', label: :label_none
+
+    new '<t-', label: :label_more_than_ago do
+      include DateRange
+      def modify(query, field, value)
+        super query, field, nil, -value.to_i
+      end
+    end
+
+    new '>t+', label: :label_in_more_than do
+      include DateRange
+      def modify(query, field, value)
+        super query, field, value.to_i, nil
+      end
+    end
+
+    new '*', arity: 0, where_clause: '%s IS NOT NULL', label: :label_all
+
+    # Our own operators
+    new '<', label: :label_less
+    new '>', label: :label_greater
+
+    new '=n', label: :label_equals do
+      def modify(query, field, value)
+        query.where "#{field} = #{clean_currency(value)}"
+        query
+      end
+    end
+
+    new '0', label: :label_none, where_clause: '%s = 0'
+    new 'y', label: :label_yes, arity: 0, where_clause: '%s IS NOT NULL'
+    new 'n', label: :label_no, arity: 0, where_clause: '%s IS NULL'
+
+    new '<d', label: :label_less_or_equal, validate: :dates do
+      def modify(query, field, value)
+        return query if value.to_s.empty?
+        '<='.to_operator.modify query, field, quoted_date(value)
+      end
+    end
+
+    new '>d', label: :label_greater_or_equal, validate: :dates do
+      def modify(query, field, value)
+        return query if value.to_s.empty?
+        '>='.to_operator.modify query, field, quoted_date(value)
+      end
+    end
+
+    new '<>d', label: :label_between, validate: :dates do
+      def modify(query, field, from, to)
+        return query if from.to_s.empty? || to.to_s.empty?
+        query.where "#{field} BETWEEN '#{quoted_date from}' AND '#{quoted_date to}'"
+        query
+      end
+    end
+
+    new '=d', label: :label_date_on, validate: :dates do
+      def modify(query, field, value)
+        return query if value.to_s.empty?
+        '='.to_operator.modify query, field, quoted_date(value)
+      end
+    end
+
+    new '>=d', label: :label_days_ago, validate: :integers do
+      force! :integers
+
+      def modify(query, field, value)
+        now = Time.now
+        from = (now - value.to_i.days).beginning_of_day
+        '<>d'.to_operator.modify query, field, from, now
+      end
+    end
+
+    new '?=', label: :label_null_or_equal do
+      def modify(query, field, *values)
+        where_clause = "(#{field} IS NULL"
+        where_clause += " OR #{field} IN #{collection(*values)}" unless values.compact.empty?
+        where_clause += ')'
+        query.where where_clause
+        query
+      end
+    end
+
+    new '?!', label: :label_not_null_and_not_equal do
+      def modify(query, field, *values)
+        where_clause = "(#{field} IS NOT NULL"
+        where_clause += " AND #{field} NOT IN #{collection(*values)}" unless values.compact.empty?
+        where_clause += ')'
+        query.where where_clause
+        query
+      end
+    end
+  end
+  #############################################################################################
+
+  module CoreExt
+    ::String.send :include, self
+    ::Symbol.send :include, self
+    def to_operator
+      Report::Operator.find self
+    end
+  end
+
+  def self.force!(type)
+    @force = type
+  end
+
+  def self.forced?
+    !!@force
+  end
+
+  def self.forced
+    @force
+  end
+
+  def self.new(name, values = {}, &block)
+    all[name.to_s] ||= super
+  end
+
+  # TODO: this should be inheritable by subclasses
+  def self.all
+    @@all_operators ||= {}
+  end
+
+  def self.load
+    return if @done
+    @done = true
+    define_operators
+  end
+
+  def self.find(name)
+    all[name.to_s] or raise ArgumentError, "Operator #{name.inspect} not defined"
+  end
+
+  def self.exists?(name)
+    all.has_key?(name.to_s)
+  end
+
+  def self.defaults(&block)
+    class_eval &block
+  end
+
+  def self.default_operator
+    find '='
+  end
+
+  def self.integer_operators
+    ['<', '>', '<=', '>='].map(&:to_operator)
+  end
+
+  def self.null_operators
+    ['*', '!*'].map(&:to_operator)
+  end
+
+  def self.string_operators
+    ['!~', '~'].map(&:to_operator)
+  end
+
+  def self.time_operators
+    # ["t-", "t+", ">t-", "<t-", ">t+", "<t+"].map { |s| s.to_operator}
+    ['t', 'w', '<>d', '>d', '<d', '=d', '>=d'].map(&:to_operator)
+  end
+
+  def self.default_operators
+    ['=', '!'].map(&:to_operator)
+  end
+
+  attr_reader :name
+
+  def initialize(name, values = {}, &block)
+    @name = name.to_s
+    validation_methods = values.delete(:validate)
+    register_validations(validation_methods) unless validation_methods.nil?
+    values.each do |key, value|
+      singleton_class.class_eval { define_method(key) { value } }
+    end
+    singleton_class.class_eval(&block) if block
+  end
+
+  def to_operator
+    self
+  end
+
+  def to_s
+    name
+  end
+
+  def arity
+    @arity ||= begin
+      num = method(:modify).arity
+      # modify takes two more arguments before the values
+      num < 0 ? num + 2 : num - 2
+    end
+  end
+
+  def inspect
+    "#<#{self.class.name}:#{name.inspect}>"
+  end
+
+  def <=>(other)
+    name <=> other.name
+  end
+
+  ## Creates an alias for a given operator.
+  def aka(alt_name, alt_label)
+    all = self.class.all
+    alt = alt_name.to_s
+    raise ArgumentError, "Can't alias operator with an existing one's name ( #{alt} )." if all.has_key?(alt)
+    op = all[name].clone
+    op.send(:rename_to, alt_name)
+    op.singleton_class.send(:define_method, 'label') { alt_label }
+    all[alt] = op
+  end
+
+  module DateRange
+    def modify(query, field, from, to)
+      query.where ["#{field} > '%s'", quoted_date((Date.yesterday + from).to_time.end_of_day)] if from
+      query.where ["#{field} <= '%s'", quoted_date((Date.today + to).to_time.end_of_day)] if to
+      query
+    end
+  end
+
+  private
+
+  def rename_to(new_name)
+    @name = new_name
+  end
+
+  # Done with class method definition, let's initialize the operators
+  load
+end

modules/reporting_engine/lib/report/query_utils.rb

@@ -0,0 +1,338 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module Report::QueryUtils
+  Infinity = 1.0 / 0
+  include Engine
+
+  alias singleton_class metaclass unless respond_to? :singleton_class
+
+  delegate :quoted_false, :quoted_true, to: 'engine.reporting_connection'
+  attr_writer :engine
+
+  module PropagationHook
+    include Report::QueryUtils
+
+    def append_features(base)
+      ancestors[1..-1].reverse_each { |m| base.send(:include, m) }
+      base.extend PropagationHook
+      base.extend self
+      super
+    end
+
+    def propagate!(to = engine)
+      to.constants(false).each do |name|
+        const = to.const_get name
+        next unless Module === const
+        append_features const unless const <= self or not const < Report::QueryUtils
+        propagate! const
+      end
+    end
+  end
+
+  extend PropagationHook
+
+  ##
+  # Graceful string quoting.
+  #
+  # @param [Object] str String to quote
+  # @return [Object] Quoted version
+  def quote_string(str)
+    return str unless str.respond_to? :to_str
+    engine.reporting_connection.quote_string(str)
+  end
+
+  def current_language
+    ::I18n.locale
+  end
+
+  ##
+  # Creates a SQL fragment representing a collection/array.
+  #
+  # @see quote_string
+  # @param [#flatten] *values Ruby collection
+  # @return [String] SQL collection
+  def collection(*values)
+    return '' if values.empty?
+
+    v = if values.is_a?(Array)
+          values.flatten.each_with_object([]) do |str, l|
+            l << split_with_safe_return(str)
+          end
+        else
+          split_with_safe_return(str)
+        end
+
+    "(#{v.flatten.map { |x| "'#{quote_string(x)}'" }.join(', ')})"
+  end
+
+  def split_with_safe_return(str)
+    # From ruby doc:
+    # When the input str is empty an empty Array is returned as the string is
+    # considered to have no fields to split.
+    str.to_s.empty? ? '' : str.to_s.split(',')
+  end
+
+  ##
+  # Graceful, internationalized quoted string.
+  #
+  # @see quote_string
+  # @param [Object] str String to quote/translate
+  # @return [Object] Quoted, translated version
+  def quoted_label(ident)
+    "'#{quote_string ::I18n.t(ident)}'"
+  end
+
+  def quoted_date(date)
+    engine.reporting_connection.quoted_date date.to_dateish
+  end
+
+  ##
+  # SQL date quoting.
+  # @param [Date,Time] date Date to quote.
+  # @return [String] Quoted date.
+  def quote_date(date)
+    "'#{quoted_date date}'"
+  end
+
+  ##
+  # Generate a table name for any object.
+  #
+  # @example Table names
+  #   table_name_for Issue    # => 'issues'
+  #   table_name_for :issue   # => 'issues'
+  #   table_name_for "issue"  # => 'issues'
+  #   table_name_for "issues" # => 'issues
+  #
+  # @param [#table_name, #to_s] object Object you need the table name for.
+  # @return [String] The table name.
+  def table_name_for(object)
+    return object.table_name if object.respond_to? :table_name
+    object.to_s.tableize
+  end
+
+  ##
+  # Generate a field name
+  #
+  # @example Field names
+  #   field_name_for nil                            # => 'NULL'
+  #   field_name_for 'foo'                          # => 'foo'
+  #   field_name_for [Issue, 'project_id']          # => 'issues.project_id'
+  #   field_name_for [:issue, 'project_id'], :entry # => 'issues.project_id'
+  #   field_name_for 'project_id', :entry           # => 'entries.project_id'
+  #
+  # @param [Array, Object] arg Object to generate field name for.
+  # @param [Object, optional] default_table Table name to use if no table name is given.
+  # @return [String] Field name.
+  def field_name_for(arg, default_table = nil)
+    return 'NULL' unless arg
+    return field_name_for(arg.keys.first, default_table) if arg.is_a? Hash
+    return arg if arg.is_a? String and arg =~ /\.| |\(.*\)/
+    return table_name_for(arg.first || default_table) + '.' << arg.last.to_s if arg.is_a? Array and arg.size == 2
+    return arg.to_s unless default_table
+    field_name_for [default_table, arg]
+  end
+
+  ##
+  # Sanitizes sql condition
+  #
+  # @see ActiveRecord::Base#sanitize_sql_for_conditions
+  # @param [Object] statement Not sanitized statement.
+  # @return [String] Sanitized statement.
+  def sanitize_sql_for_conditions(statement)
+    engine.send :sanitize_sql_for_conditions, statement
+  end
+
+  ##
+  # FIXME: This is redmine
+  # Generates string representation for a currency.
+  #
+  # @see CostRate.clean_currency
+  # @param [BigDecimal] value
+  # @return [String]
+  def clean_currency(value)
+    CostRate.clean_currency(value).to_f.to_s
+  end
+
+  ##
+  # Generates a SQL case statement.
+  #
+  # @example
+  #   switch "#{table}.overridden_costs IS NULL" => [model, :costs], :else => [model, :overridden_costs]
+  #
+  # @param [Hash] options Condition => Result.
+  # @return [String] Case statement.
+  def switch(options)
+    desc = "#{__method__} #{options.inspect[1..-2]}".gsub(/(Cost|Time)Entry\([^\)]*\)/, '\1Entry')
+    options = options.with_indifferent_access
+    else_part = options.delete :else
+    "-- #{desc}\n\t" \
+    "CASE #{options.map { |k, v|
+      "\n\t\tWHEN #{field_name_for k}\n\t\t" \
+    "THEN #{field_name_for v}"
+    }.join(', ')}\n\t\tELSE #{field_name_for else_part}\n\tEND"
+  end
+
+  def iso_year_week(field, default_table = nil)
+    field = field_name_for(field, default_table)
+    "-- code specific for #{adapter_name}\n\t" << super(field)
+  end
+
+  ##
+  # Converts value with a given behavior, but treats nil differently.
+  # Params
+  #  - value: the value to convert
+  #  - weight_of_nil (optional): How a nil should be treated.
+  #    :infinit - makes a nil weight really heavy, which will make it stay
+  #               at the very end when sorting
+  #    :negative_infinit - opposite of :infinit, let's the nil stay at the very beginning
+  #    any other object - nil's will be replaced by thyt object
+  #  - block (optional) - defines how to convert values which are not nil
+  #               if no block is given, values stay untouched
+  def convert_unless_nil(value, weight_of_nil = :infinit)
+    if value.nil?
+      if weight_of_nil == :infinit
+        1.0 / 0 # Infinity, which is greater than any string or number
+      elsif weight_of_nil == :negative_infinit
+        -1.0 / 0 # negative Infinity, which is smaller than any string or number
+      else
+        weight_of_nil
+      end
+    else
+      if block_given?
+        yield value
+      else
+        value
+      end
+    end
+  end
+
+  def map_field(key, value)
+    case key.to_s
+    when 'singleton_value', /_id$/ then convert_unless_nil(value) { |v| v.to_i }
+    when 'work_package_id', 'tweek', 'tmonth', 'tweek' then value.to_i
+    else convert_unless_nil(value) { |v| v.to_s }
+    end
+  end
+
+  def adapter_name
+    engine.reporting_connection.adapter_name.downcase.to_sym
+  end
+
+  def cache
+    Report::QueryUtils.cache
+  end
+
+  def compare(first, second)
+    first  = Array(first).flatten
+    second = Array(second).flatten
+    first.zip second do |a, b|
+      return (a <=> b) || (a == Infinity ? 1 : -1) if a != b
+    end
+    second.size > first.size ? -1 : 0
+  end
+
+  def mysql?
+    [:mysql, :mysql2].include? adapter_name.to_s.downcase.to_sym
+  end
+
+  def sqlite?
+    adapter_name == :sqlite
+  end
+
+  def postgresql?
+    adapter_name == :postgresql
+  end
+
+  module SQL
+    def typed(_type, value, escape = true)
+      escape ? "'#{quote_string value}'" : value
+    end
+  end
+
+  module MySql
+    include SQL
+    def iso_year_week(field)
+      "yearweek(#{field}, 1)"
+    end
+  end
+
+  module Sqlite
+    include SQL
+    def iso_year_week(field)
+      # enjoy
+      <<-EOS
+        case
+        when strftime('%W', strftime('%Y-01-04', #{field})) = '00' then
+          -- 01/01 is in week 1 of the current year => %W == week - 1
+          case
+          when strftime('%W', #{field}) = '52' and strftime('%W', (strftime('%Y', #{field}) + 1) || '-01-04') = '00' then
+            -- we are at the end of the year, and it's the first week of the next year
+            (strftime('%Y', #{field}) + 1) || '01'
+          when strftime('%W', #{field}) < '08' then
+            -- we are in week 1 to 9
+            strftime('%Y0', #{field}) || (strftime('%W', #{field}) + 1)
+          else
+            -- we are in week 10 or later
+            strftime('%Y', #{field}) || (strftime('%W', #{field}) + 1)
+          end
+        else
+            -- 01/01 is in week 53 of the last year
+            case
+            when strftime('%W', #{field}) = '52' and strftime('%W', (strftime('%Y', #{field}) + 1) || '-01-01') = '00' then
+              -- we are at the end of the year, and it's the first week of the next year
+              (strftime('%Y', #{field}) + 1) || '01'
+            when strftime('%W', #{field}) = '00' then
+              -- we are in the week belonging to last year
+              (strftime('%Y', #{field}) - 1) || '53'
+            else
+              -- everything is fine
+              strftime('%Y%W', #{field})
+            end
+        end
+      EOS
+    end
+  end
+
+  module Postres
+    include SQL
+    def typed(type, value, escape = true)
+      "#{super}::#{type}"
+    end
+
+    def iso_year_week(field)
+      "(EXTRACT(isoyear from #{field})*100 + \n\t\t" \
+      "EXTRACT(week from #{field} - \n\t\t" \
+      "(EXTRACT(dow FROM #{field})::int+6)%7))"
+    end
+  end
+
+  include MySql if mysql?
+  include Sqlite if sqlite?
+  include Postres if postgresql?
+
+  def self.cache
+    @cache ||= Hash.new { |h, k| h[k] = {} }
+  end
+
+  def self.included(klass)
+    super
+    klass.extend self
+  end
+end

modules/reporting_engine/lib/report/result.rb

@@ -0,0 +1,299 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::Result
+  include Report::QueryUtils
+
+  class Base
+    attr_accessor :parent, :type, :important_fields
+    attr_accessor :key
+    attr_reader :value
+    alias values value
+    include Enumerable
+    include Report::QueryUtils
+
+    def initialize(value)
+      @important_fields ||= []
+      @type = :direct
+      @value = value
+    end
+
+    def recursive_each_with_level(level = 0, _depth_first = true, &block)
+      block.call(level, self)
+    end
+
+    def recursive_each
+      recursive_each_with_level { |_level, result| yield result }
+    end
+
+    def to_hash
+      fields.dup
+    end
+
+    def [](key)
+      fields[key]
+    end
+
+    ##
+    # Override if you want to influence the result grouping.
+    #
+    # @return A value for grouping or nil if the given field should
+    #         not be considered for grouping.
+    def map_group_by_value(_key, value)
+      value
+    end
+
+    ##
+    # This method is called when this result is requested as #grouped_by something
+    # just before the result is returned.
+    #
+    # @param data This result's grouped data.
+    def group_by_data_ready(_data)
+      # good to know!
+    end
+
+    def grouped_by(fields, type, important_fields = [])
+      @grouped_by ||= {}
+      list = begin
+        @grouped_by[fields] ||= begin
+          # sub results, have fields
+          # i.e. grouping by foo, bar
+          data = group_by do |entry|
+            # index for group is a hash
+            # i.e. { :foo => 10, :bar => 20 } <= this is just the KEY!!!!
+            fields.inject({}) do |hash, key|
+              val = map_group_by_value(key, entry.fields[key])
+              hash.merge key => val
+            end
+          end
+          group_by_data_ready(data)
+          # map group back to array, all fields with same key get grouped into one list
+          data.keys.map { |f| engine::Result.new data[f], f, type, important_fields }
+        end
+      end
+      # create a single result from that list
+      engine::Result.new list, {}, type, important_fields
+    end
+
+    def inspect
+      "<##{self.class}: @fields=#{fields.inspect} @type=#{type.inspect} " \
+      "@size=#{size} @count=#{count} @units=#{units}>"
+    end
+
+    def row?
+      type == :row
+    end
+
+    def column?
+      type == :column
+    end
+
+    def direct?
+      type == :direct
+    end
+
+    def each_row
+    end
+
+    def final?(type)
+      type? type and (direct? or size == 0 or first.type != type)
+    end
+
+    def type?(type)
+      self.type == type
+    end
+
+    def depth_of(type)
+      if type? type or (type == :column and direct?) then 1
+      else 0
+      end
+    end
+
+    def final_number(type)
+      return 1 if final? type
+      return 0 if direct?
+      @final_number ||= {}
+      @final_number[type] ||= sum { |v| v.final_number type }
+    end
+
+    def final_row?
+      final? :row
+    end
+
+    def final_column?
+      final? :column
+    end
+
+    def render(keys = important_fields)
+      fields.map { |k, v| yield(k, v) if keys.include? k }.join
+    end
+
+    def set_key(index = [])
+      self.key = index.map { |k| map_field(k, fields[k]) }
+    end
+  end
+
+  class DirectResult < Base
+    alias fields values
+
+    def has_children?
+      false
+    end
+
+    def count
+      self['count'].to_i
+    end
+
+    def units
+      self['units'].to_d
+    end
+
+    ##
+    # @return [Integer] Number of child results
+    def size
+      0
+    end
+
+    def each
+      return enum_for(__method__) unless block_given?
+      yield self
+    end
+
+    def each_direct_result(_cached = false)
+      return enum_for(__method__) unless block_given?
+      yield self
+    end
+
+    def sort!(force = false)
+      force
+    end
+  end
+
+  class WrappedResult < Base
+    include Enumerable
+
+    def set_key(index = [])
+      values.each { |v| v.set_key index }
+      super
+    end
+
+    def sort!(force = false)
+      return false if @sorted and not force
+      values.sort! { |a, b| compare a.key, b.key }
+      values.each { |e| e.sort! force }
+      @sorted = true
+    end
+
+    def depth_of(type)
+      super + first.depth_of(type)
+    end
+
+    def has_children?
+      true
+    end
+
+    def count
+      sum_for :count
+    end
+
+    def units
+      sum_for :units
+    end
+
+    def sum_for(field)
+      @sum_for ||= {}
+      @sum_for[field] ||= sum { |v| v.send(field) || 0 }
+    end
+
+    def recursive_each_with_level(level = 0, depth_first = true, &block)
+      if depth_first
+        super
+        each { |c| c.recursive_each_with_level(level + 1, depth_first, &block) }
+      else # width-first
+        to_evaluate = [self]
+        lvl = level
+        while !to_evaluate.empty?
+          # evaluate all stored results and find the results we need to evaluate soon
+          to_evaluate_soon = []
+          to_evaluate.each do |r|
+            block.call(lvl, r)
+            to_evaluate_soon.concat r.values if r.size > 0
+          end
+          # take new results to evaluate
+          lvl = lvl + 1
+          to_evaluate = to_evaluate_soon
+        end
+      end
+
+      def each_row
+        return enum_for(:each_row) unless block_given?
+        if final_row? then yield self
+        else each { |c| c.each_row(&Proc.new) }
+        end
+      end
+    end
+
+    def to_a
+      values
+    end
+
+    def each(&block)
+      values.each(&block)
+    end
+
+    def each_direct_result(cached = true)
+      return enum_for(__method__) unless block_given?
+      if @direct_results
+        @direct_results.each { |r| yield(r) }
+      else
+        values.each do |value|
+          value.each_direct_result(false) do |result|
+            (@direct_results ||= []) << result if cached
+            yield result
+          end
+        end
+      end
+    end
+
+    def fields
+      @fields ||= {}.with_indifferent_access
+    end
+
+    ##
+    # @return [Integer] Number of child results
+    def size
+      values.size
+    end
+  end
+
+  def self.new(value, fields = {}, type = nil, important_fields = [])
+    result = begin
+      case value
+      when ActiveRecord::Result, Array then engine::Result::WrappedResult.new value.map { |e| new e, {}, nil, important_fields }
+      when Hash  then engine::Result::DirectResult.new value.with_indifferent_access
+      when Base  then value
+      else raise ArgumentError, "Cannot create Result from #{value.inspect}"
+      end
+    end
+    result.fields.merge! fields
+    result.type = type if type
+    result.important_fields = important_fields unless result == value
+    result
+  end
+end

modules/reporting_engine/lib/report/sql_statement.rb

@@ -0,0 +1,288 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::SqlStatement
+  class Union
+    attr_accessor :first, :second, :as
+    def initialize(first, second, as = nil)
+      @first, @second, @as = first, second, as
+    end
+
+    def to_s
+      "((\n#{first.gsub("\n", "\n\t")}\n) UNION (\n" \
+      "#{second.gsub("\n", "\n\t")}\n))#{" AS #{as}" if as}\n"
+    end
+
+    def each_subselect
+      yield first
+      yield second
+    end
+
+    def gsub(*args, &block)
+      to_s.gsub(*args, &block)
+    end
+  end
+
+  include Report::QueryUtils
+
+  ##
+  # Describes the query. This may be used in a sql-comment later.
+  attr_accessor :desc
+
+  ##
+  # Generates new SqlStatement.
+  #
+  # @param [String, #to_s] table Table name (or subselect) for from part.
+  def initialize(table, desc = '')
+    self.desc = desc
+    from table
+  end
+
+  ##
+  # Creates a uninon of the caller and the callee.
+  #
+  # @param [Report::SqlStatement] other Second part of the union
+  # @return [String] The sql query.
+  def union(other, as = nil)
+    Union.new(self, other, as)
+  end
+
+  ##
+  # Adds sum(..) part to select.
+  #
+  # @param [#to_s] field Name of the field to aggregate on
+  # @param [#to_s] name Name of the result (defaults to sum)
+  def sum(field, name = :sum, type = :sum)
+    @sql = nil
+    return sum({ name => field }, nil, type) unless field.respond_to? :to_hash
+    field.each { |k, v| field[k] = "#{type}(#{v})" }
+    select field
+  end
+
+  ##
+  # Adds count(..) part to select.
+  #
+  # @param [#to_s] field Name of the field to aggregate on (defaults to *)
+  # @param [#to_s] name Name of the result (defaults to sum)
+  def count(field = '*', name = :count)
+    sum field, name, :count
+  end
+
+  ##
+  # Generates the SQL query.
+  # Code looks ugly in exchange for pretty output (so one does unterstand those).
+  #
+  # @return [String] The query
+  def to_s
+    # FIXME I'm ugly
+    @sql ||= begin
+      sql = "\n-- BEGIN #{desc}\n" \
+      "-- DB: #{ActiveRecord::Base.connection.current_database}\n" \
+      "SELECT\n#{select.map { |e| "\t#{e}" }.join ",\n"}" \
+      "\nFROM\n\t#{from.gsub("\n", "\n\t")}" \
+      "\n\t#{joins.map { |e| e.gsub("\n", "\n\t") }.join "\n\t"}" \
+      "\nWHERE #{where.join ' AND '}\n"
+      sql << "GROUP BY #{group_by.join ', '}\nORDER BY #{group_by.join ', '}\n" if group_by?
+      sql << "-- END #{desc}\n"
+      sql.gsub!('--', '#') if mysql?
+      sql # << " LIMIT 100"
+    end
+  end
+
+  ##
+  # @overload from
+  #   Reads the from part.
+  #   @return [#to_s] From part
+  # @overload from(table)
+  #   Sets the from part.
+  #   @param [#to_s] table
+  #   @param [#to_s] From part
+  def from(table = nil)
+    return @from unless table
+    @sql = nil
+    @from = table
+  end
+
+  ##
+  # Where conditions. Will be joined together by AND.
+  #
+  # @overload where
+  #   Reads the where part
+  #   @return [Array<#to_s>] Where clauses
+  # @overload where(fields)
+  #   Adds condition to where clause
+  #   @param [Array, Hash, String] fields Parameters passed to sanitize_sql_for_conditions.
+  # @see Report::QueryUtils#sanitize_sql_for_conditions
+  def where(fields = nil)
+    @where ||= ['1=1']
+    unless fields.nil?
+      @where << sanitize_sql_for_conditions(fields)
+      @sql = nil
+    end
+    @where
+  end
+
+  ##
+  # @return [Array<String>] List of table joins
+  def joins
+    (@joins ||= []).tap(&:uniq!)
+  end
+
+  ##
+  # Adds an "left outer join" (guessing field names) to #joins.
+  #
+  # @overload join(name)
+  #   @param [Symbol, String] name Singular table name to join with, will join plural from on table.id = table_id
+  # @overload join(model)
+  #   @param [#table_name, #model_name] model ActiveRecord model to join with
+  # @overload join(hash)
+  #   @param [Hash<#to_s => #to_s>] hash Key is singular table name to join with, value is field to join on
+  # @overload join(*list)
+  #   @param [Array<String,Symbol,Array>] list Will generate join entries (according to guessings described above)
+  # @see #joins
+  def join(*list)
+    @sql = nil
+    join_syntax = 'LEFT OUTER JOIN %1$s ON %1$s.id = %2$s_id'
+    list.each do |e|
+      case e
+      when Class          then joins << (join_syntax % [table_name_for(e), e.lookup_ancestors.last.model_name.to_s.underscore])
+      when / /            then joins << e
+      when Symbol, String then joins << (join_syntax % [table_name_for(e), e])
+      when Hash           then e.each { |k, v| joins << (join_syntax % [table_name_for(k), field_name_for(v)]) }
+      when Array          then join(*e)
+      else raise ArgumentError, "cannot join #{e.inspect}"
+      end
+    end
+  end
+
+  def default_select(value = nil)
+    @default_select = value if value
+    @default_select ||= ['*']
+  end
+
+  ##
+  # @overload select
+  #   @return [Array<String>] All fields/statements for select part
+  #
+  # @overload select(*fields)
+  #   Adds fields to select query.
+  #   @example
+  #     SqlStatement.new.select(some_sql_statement) # [some_sql_statement.to_s]
+  #     SqlStatement.new.select("sum(foo)")         # ["sum(foo)"]
+  #     SqlStatement.new.select(:a).select(:b)      # ["a", "b"]
+  #     SqlStatement.new.select(:bar => :foo)       # ["foo as bar"]
+  #     SqlStatement.new.select(:bar => nil)        # ["NULL as bar"]
+  #   @param [Array, Hash, String, Symbol, SqlStatement] fields Fields to add to select part
+  #   @return [Array<String>] All fields/statements for select part
+  def select(*fields)
+    return(@select || default_select) if fields.empty?
+    (@select ||= []).tap do
+      @sql = nil
+      fields.reject { |f| never_select.include? f }.each do |f|
+        case f
+        when Array
+          if f.size == 2 and f.first.respond_to? :table_name then select field_name_for(f)
+          else select(*f)
+          end
+        when Hash then select f.map { |k, v| "#{field_name_for v} as #{field_name_for k}" }
+        when String, Symbol then @select << field_name_for(f)
+        when engine::SqlStatement then @select << f.to_s
+        else raise ArgumentError, "cannot handle #{f.inspect}"
+        end
+      end
+      # when doing a union in sql, both subselects must have the same order.
+      # by sorting here we never ever have to worry about this again, sucker!
+      @select = @select.uniq.sort_by { |x| x.split(' as ').last }
+    end
+  end
+
+  def unselect(*fields)
+    @sql = nil
+    @select = @select.reject do |field|
+      fields.find { |f| f == field }
+    end
+  end
+
+  def never_select(*fields)
+    (@never_select ||= []).tap do
+      unless fields.empty?
+        @never_select += fields
+        unselect *fields
+      end
+    end
+  end
+
+  ##
+  # Return the names which have been bound through select statements
+  # @return [Array<String>] All fields for select part
+  def selects
+    @select.map { |s| s.split(' as ').last }
+  end
+
+  ##
+  # @overload group_by
+  #   @return [Array<String>] All fields/statements for group by part
+  #
+  # @overload group(*fields)
+  #   Adds fields to group by query
+  #   @param [Array, String, Symbol] fields Fields to add
+  def group_by(*fields)
+    @sql = nil unless fields.empty?
+    (@group_by ||= []).tap do
+      fields.reject { |f| never_group_by.include? f }.each do |e|
+        if e.is_a? Array and (e.size != 2 or !e.first.respond_to? :table_name)
+          group_by(*e)
+        else
+          @group_by << field_name_for(e)
+        end
+      end
+      @group_by.uniq!
+    end
+  end
+
+  def group_not_by(*fields)
+    @sql = nil
+    @group_by = @group_by.reject do |field|
+      fields.find { |f| f == field }
+    end
+  end
+
+  def never_group_by(*fields)
+    (@never_group_by ||= []).tap do
+      unless fields.empty?
+        @never_group_by += fields
+        group_not_by *fields
+      end
+    end
+  end
+
+  ##
+  # @return [TrueClass, FalseClass] Whether or not to add a group by part.
+  def group_by?
+    !group_by.empty?
+  end
+
+  def inspect
+    "#<SqlStatement: #{to_s.inspect}>"
+  end
+
+  def gsub(*args, &block)
+    to_s.gsub(*args, &block)
+  end
+end

modules/reporting_engine/lib/report/table.rb

@@ -0,0 +1,109 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+# encoding: UTF-8
+require 'enumerator'
+
+class Report::Table
+  attr_accessor :query
+  include Report::QueryUtils
+
+  def initialize(query)
+    @query = query
+  end
+
+  def row_index
+    get_index :row
+  end
+
+  def column_index
+    get_index :column
+  end
+
+  def row_fields
+    fields_for :row
+  end
+
+  def column_fields
+    fields_for :column
+  end
+
+  def rows_for(result)
+    fields_for result, :row
+  end
+
+  def columns_for(result)
+    fields_for result, :column
+  end
+
+  def fields_from(result, type)
+    fields_for(type).map { |k| map_field k, result.fields[k] }
+  end
+
+  ##
+  # @param [Array] expected Fields expected
+  # @param [Array,Hash,Result] given Fields/result to be tested
+  # @return [TrueClass,FalseClass]
+  def satisfies?(type, expected, given)
+    given  = fields_from(given, type) if given.respond_to? :to_hash
+    zipped = expected.zip given
+    zipped.all? { |a, b| a == b or b.nil? }
+  end
+
+  def fields_for(type)
+    @fields_for ||= begin
+      child, fields = query.chain, Hash.new { |h, k| h[k] = [] }
+      until child.filter?
+        fields[child.type].push(*child.group_fields)
+        child = child.child
+      end
+      fields
+    end
+    @fields_for[type]
+  end
+
+  def get_row(*args)
+    @query.each_row { |result| return with_gaps_for(type, result) if satisfies? :row, args, result }
+    []
+  end
+
+  def with_gaps_for(type, result)
+    return enum_for(:with_gaps_for, type, result) unless block_given?
+    stack = get_index(type).dup
+    result.each_direct_result do |subresult|
+      yield nil until stack.empty? or satisfies? type, stack.shift, subresult
+      yield subresult
+    end
+    stack.size.times { yield nil }
+  end
+
+  def [](x, y)
+    get_row(row_index[y]).first(x).last
+  end
+
+  def get_index(type)
+    @indexes ||= begin
+      indexes = Hash.new { |h, k| h[k] = Set.new }
+      query.each_direct_result { |result| [:row, :column].each { |t| indexes[t] << fields_from(result, t) } }
+      indexes.keys.each { |k| indexes[k] = indexes[k].sort { |x, y| compare x, y } }
+      indexes
+    end
+    @indexes[type]
+  end
+end

modules/reporting_engine/lib/report/transformer.rb

@@ -0,0 +1,65 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+# encoding: UTF-8
+class Report::Transformer
+  attr_reader :query
+
+  def initialize(query)
+    @query = query
+  end
+
+  ##
+  # @return [Report::Result::Base] Result tree with row group bys at the top
+  # @see Report::Chainable#result
+  def row_first
+    @row_first ||= query.result
+  end
+
+  ##
+  # @return [Report::Result::Base] Result tree with column group bys at the top
+  # @see Report::Walker#row_first
+  def column_first
+    @column_first ||= begin
+      # reverse since we fake recursion ↓↓↓
+      list, all_fields = restructured.reverse, @all_fields.dup
+      result = list.inject(@ungrouped) do |aggregate, (current_fields, type)|
+        fields, all_fields = all_fields, all_fields - current_fields
+        aggregate.grouped_by fields, type, current_fields
+      end
+      result or query.result
+    end
+  end
+
+  ##
+  # Important side effect: it sets @ungrouped, @all_fields.
+  # @return [Array<Array<Array<String,Symbol>, Symbol>>] Group by fields + types (:row or :column)
+  def restructured
+    rows, columns, current = [], [], query.chain
+    @all_fields = []
+    until current.filter?
+      @ungrouped = current.result if current.responsible_for_sql?
+      list = current.row? ? rows : columns
+      list << [current.group_fields, current.type]
+      @all_fields.push(*current.group_fields)
+      current = current.child
+    end
+    columns + rows
+  end
+end

modules/reporting_engine/lib/report/validation.rb

@@ -0,0 +1,61 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module Report::Validation
+  include Report::QueryUtils
+
+  def register_validations(*validation_methods)
+    validation_methods.flatten.each do |val_method|
+      register_validation(val_method)
+    end
+  end
+
+  def register_validation(val_method)
+    const_name = val_method.to_s.camelize
+    begin
+      val_module = engine::Validation.const_get const_name
+      singleton_class.send(:include, val_module)
+      val_method = 'validate_' + val_method.to_s.pluralize
+      if method(val_method)
+        validations << val_method
+      else
+        warn "#{val_module.name} does not define #{val_method}"
+      end
+    rescue NameError
+      warn "No Module #{engine}::Validation::#{const_name} found to validate #{val_method}"
+    end
+    self
+  end
+
+  def errors
+    @errors ||= Hash.new { |h, k| h[k] = [] }
+  end
+
+  def validations
+    @validations ||= []
+  end
+
+  def validate(*values)
+    errors.clear
+    return true if validations.empty?
+    validations.all? do |validation|
+      values.empty? ? true : send(validation, *values)
+    end
+  end
+end

modules/reporting_engine/lib/report/validation/dates.rb

@@ -0,0 +1,36 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module Report::Validation
+  module Dates
+    def validate_dates(*values)
+      values = values.flatten
+      return true if values.empty?
+      values.flatten.all? do |val|
+        begin
+          !!val.to_dateish
+        rescue ArgumentError
+          errors[:date] << val
+          validate_dates(values - [val])
+          false
+        end
+      end
+    end
+  end
+end

modules/reporting_engine/lib/report/validation/integers.rb

@@ -0,0 +1,36 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module Report::Validation
+  module Integers
+    def validate_integers(*values)
+      values = values.flatten
+      return true if values.empty?
+      values.flatten.all? do |val|
+        if val.to_i.to_s != val.to_s
+          errors[:int] << val
+          validate_integers(values - [val])
+          false
+        else
+          true
+        end
+      end
+    end
+  end
+end

modules/reporting_engine/lib/report/validation/sql.rb

@@ -0,0 +1,26 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module Report::Validation
+  module Sql
+    def validate_sql(_values = [])
+      raise NotImplementedError, "Haven't done SQL validation just yet!"
+    end
+  end
+end

modules/reporting_engine/lib/report/walker.rb

@@ -0,0 +1,119 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+class Report::Walker
+  attr_accessor :query, :header_stack
+  def initialize(query)
+    @query = query
+  end
+
+  def for_row(&block)
+    access_block(:row, &block)
+  end
+
+  def for_final_row(&block)
+    access_block(:final_row, &block) || access_block(:row)
+  end
+
+  def for_cell(&block)
+    access_block(:cell, &block)
+  end
+
+  def for_empty_cell(&block)
+    access_block(:empty_cell, &block) || access_block(:cell)
+  end
+
+  def access_block(name, &block)
+    @blocks ||= {}
+    @blocks[name] = block if block
+    @blocks[name]
+  end
+
+  def walk_cell(cell)
+    cell ? for_cell[cell] : for_empty_cell[nil]
+  end
+
+  def headers(result = nil, &_block)
+    @header_stack = []
+    result ||= query.column_first
+    sort result
+    last_level = -1
+    num_in_col = 0
+    level_size = 1
+    sublevel   = 0
+    result.recursive_each_with_level(0, false) do |level, result|
+      break if result.final_column?
+      if first_in_col = (last_level < level)
+        list        = []
+        last_level  = level
+        num_in_col  = 0
+        level_size  = sublevel
+        sublevel    = 0
+        @header_stack << list
+      end
+      num_in_col  += 1
+      sublevel    += result.size
+      last_in_col  = (num_in_col >= level_size)
+      @header_stack.last << [result, first_in_col, last_in_col]
+      yield(result, level == 0, first_in_col, last_in_col) if block_given?
+    end
+  end
+
+  def reverse_headers
+    fail 'call header first' unless @header_stack
+    first = true
+    @header_stack.reverse_each do |list|
+      list.each do |result, first_in_col, last_in_col|
+        yield(result, first, first_in_col, last_in_col)
+      end
+      first = false
+    end
+  end
+
+  def headers_empty?
+    fail 'call header first' unless @header_stack
+    @header_stack.empty?
+  end
+
+  def sort_keys
+    @sort_keys ||= query.chain.map { |c| c.group_fields.map(&:to_s) if c.group_by? }.compact.flatten
+  end
+
+  def sort(result)
+    result.set_key sort_keys
+    result.sort!
+  end
+
+  def body(result = nil)
+    return [*body(result)].each { |a| yield a } if block_given?
+    result ||= query.result.tap { |r| sort(r) }
+    if result.row?
+      if result.final_row?
+        subresults = query.table.with_gaps_for(:column, result).map(&method(:walk_cell))
+        for_final_row.call result, subresults
+      else
+        subresults = result.map { |r| body(r) }
+        for_row.call result, subresults
+      end
+    else
+      # you only get here if no rows are defined
+      result.each_direct_result.map(&method(:walk_cell))
+    end
+  end
+end

modules/reporting_engine/lib/reporting_engine.rb

@@ -0,0 +1,22 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module ReportingEngine
+  require 'reporting_engine/engine'
+end

modules/reporting_engine/lib/reporting_engine/engine.rb

@@ -0,0 +1,63 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+require 'rails/engine'
+
+module ReportingEngine
+  class Engine < ::Rails::Engine
+    engine_name :reportingengine
+
+    config.autoload_paths += Dir["#{config.root}/lib/"]
+
+    initializer 'reportingengine.precompile_assets' do
+      Rails.application.config.assets.precompile += %w(reporting_engine.css reporting_engine.js)
+    end
+
+    initializer 'check mysql version' do
+      connection = ActiveRecord::Base.connection
+      adapter_name = connection.adapter_name.to_s.downcase.to_sym
+      if [:mysql, :mysql2].include?(adapter_name)
+        # The reporting engine is incompatible with the
+        # following mysql versions due to a bug in MySQL itself:
+        # 5.6.0 - 5.6.12
+        # 5.7.0 - 5.7.1
+        # see https://www.openproject.org/issues/967 for details.
+        required_patch_levels = { '5.6' => 13, '5.7' => 2 }
+
+        mysql_version = connection.show_variable('VERSION')
+        release_version, patch_level = mysql_version.match(/(\d*\.\d*)\.(\d*)/).captures
+        required_patch_level = required_patch_levels[release_version]
+
+        if required_patch_level && (patch_level.to_i < required_patch_level)
+          raise "MySQL #{mysql_version} is not supported. Version #{release_version} \
+                 requires patch level >= #{required_patch_level}."
+        end
+      end
+    end
+
+    config.to_prepare do
+      require 'reporting_engine/patches'
+      require 'reporting_engine/patches/big_decimal_patch'
+      require 'reporting_engine/patches/to_date_patch'
+      # We have to require this here because Ruby will otherwise find Date
+      # as Object::Date and Rails wont autoload Widget::Filters::Date
+      require_dependency 'widget/filters/date'
+    end
+  end
+end

modules/reporting_engine/lib/reporting_engine/helpers/reporting_helper.rb

@@ -0,0 +1,30 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+##
+# A minimal ReportingHelper module. This is included in Widget and
+# Controller and can be used to extend the specific widgets and
+# controller functionality.
+#
+# It is the default hook for translations, and calls to l() in Widgets
+# or Controllers will go to this module, first. The default behavior
+# is to pass translation work on to I18n.t() or I18n.l(), depending on
+# the type of arguments.
+module ReportingHelper
+end

modules/reporting_engine/lib/reporting_engine/patches.rb

@@ -0,0 +1,21 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module ReportingEngine::Patches
+end

modules/reporting_engine/lib/reporting_engine/patches/big_decimal_patch.rb

@@ -0,0 +1,40 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module ReportingEngine::Patches::BigDecimalPatch
+  module BigDecimal
+    ::BigDecimal.send :include, self
+    def to_d; self end
+  end
+
+  module Integer
+    ::Integer.send :include, self
+    def to_d; to_f.to_d end
+  end
+
+  module String
+    ::String.send :include, self
+    def to_d; ::BigDecimal.new(self) end
+  end
+
+  module NilClass
+    ::NilClass.send :include, self
+    def to_d; 0 end
+  end
+end

modules/reporting_engine/lib/reporting_engine/patches/to_date_patch.rb

@@ -0,0 +1,47 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+require 'date'
+
+module ReportingEngine::Patches::ToDatePatch
+  module StringAndNil
+    ::String.send(:include, self)
+    ::NilClass.send(:include, self)
+
+    def to_dateish
+      return Date.today if blank?
+      Date.parse self
+    end
+  end
+
+  module DateAndTime
+    ::Date.send(:include, self)
+    ::Time.send(:include, self)
+
+    def to_dateish
+      self
+    end
+
+    def force_utc
+      return to_time.force_utc unless respond_to? :utc_offset
+      return self if utc?
+      utc - utc_offset
+    end
+  end
+end

modules/reporting_engine/lib/reporting_engine/tasks/spec.rake

@@ -0,0 +1,45 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+begin
+  require 'spec/rake/spectask'
+  namespace :spec do
+    namespace :plugins do
+      desc 'Runs the examples for reporting_engine'
+      Spec::Rake::SpecTask.new(:reporting_engine) do |t|
+        t.spec_opts = ['--options', "\"#{Rails.root}/spec/spec.opts\""]
+        t.spec_files = FileList['vendor/plugins/reporting_engine/spec/**/*_spec.rb']
+      end
+
+      desc 'Runs the examples for reporting_engine'
+      Spec::Rake::SpecTask.new(:"reporting_engine:rcov") do |t|
+        t.spec_opts = ['--options', "\"#{Rails.root}/spec/spec.opts\""]
+        t.spec_files = FileList['vendor/plugins/reporting_engine/spec/**/*_spec.rb']
+        t.rcov = true
+        t.rcov_opts = ['-x', "\.rb,spec", '-i', 'reporting_engine/app/,redmine_reporting/lib/']
+      end
+    end
+  end
+  task spec: 'spec:plugins:reporting_engine'
+
+  require 'ci/reporter/rake/rspec'     # use this if you're using RSpec
+  require 'ci/reporter/rake/test_unit' # use this if you're using Test::Unit
+  task :"spec:plugins:reporting_engine:ci" => ['ci:setup:rspec', 'spec:plugins:redmine_reporting']
+rescue LoadError
+end

modules/reporting_engine/lib/reporting_engine/version.rb

@@ -0,0 +1,22 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+module ReportingEngine
+  VERSION = "8.2.0"
+end

modules/reporting_engine/lib/reporting_widget.rb

@@ -0,0 +1,68 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+require_dependency 'reporting_engine/helpers/reporting_helper'
+
+class ReportingWidget < ActionView::Base
+  include ActionView::Helpers::TagHelper
+  include ActionView::Helpers::AssetTagHelper
+  include ActionView::Helpers::FormTagHelper
+  include ActionView::Helpers::JavaScriptHelper
+  include Rails.application.routes.url_helpers
+  include ApplicationHelper
+  include ReportingHelper
+  include Redmine::I18n
+
+  attr_accessor :output_buffer, :controller, :config, :_content_for, :_routes, :subject
+
+  def self.new(subject)
+    super(subject).tap do |o|
+      o.subject = subject
+    end
+  end
+
+  def current_language
+    ::I18n.locale
+  end
+
+  def protect_against_forgery?
+    false
+  end
+
+  def method_missing(name, *args, &block)
+    controller.send(name, *args, &block)
+  rescue NoMethodError
+    raise NoMethodError, "undefined method `#{name}' for #<#{self.class}:0x#{object_id}>"
+  end
+
+  module RenderWidgetInstanceMethods
+    def render_widget(widget, subject, options = {}, &block)
+      i = widget.new(subject)
+      i.config = config
+      i._routes = _routes
+      i._content_for = @_content_for
+      i.controller = respond_to?(:controller) ? controller : self
+      i.request = request
+      i.render_with_options(options, &block)
+    end
+  end
+end
+
+ActionView::Base.send(:include, ReportingWidget::RenderWidgetInstanceMethods)
+ActionController::Base.send(:include, ReportingWidget::RenderWidgetInstanceMethods)

modules/reporting_engine/lib/widget/base.rb

@@ -0,0 +1,115 @@
+#-- copyright
+# ReportingEngine
+#
+# Copyright (C) 2010 - 2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 3.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#++
+
+require 'digest/sha1'
+
+require_dependency 'reporting_widget'
+module ::Widget
+  class Base < ::ReportingWidget
+    attr_reader :engine, :output
+    attr_accessor :request
+
+    ##
+    # Deactivate caching for certain widgets. If called on Widget::Base,
+    # caching is deactivated globally
+    def self.dont_cache!
+      @dont_cache = true
+    end
+
+    ##
+    # Query whether this widget class should be cached.
+    def self.dont_cache?
+      @dont_cache or self != Widget::Base && Widget::Base.dont_cache?
+    end
+
+    def initialize(query)
+      @subject = query
+      @engine = query.class
+      @options = {}
+    end
+
+    ##
+    # Write a string to the canvas. The string is marked as html_safe.
+    # This will write twice, if @cache_output is set.
+    def write(str)
+      str ||= ''
+      @output ||= ''.html_safe
+      @output = @output + '' if @output.frozen? # Rails 2 freezes tag strings
+      @output.concat str.html_safe
+      @cache_output.concat(str.html_safe) if @cache_output
+      str.html_safe
+    end
+
+    ##
+    # Render this widget. Abstract method. Needs to call #write at least once
+    def render
+      raise NotImplementedError,  "#render is missing in my subclass #{self.class}"
+    end
+
+    ##
+    # Render this widget, passing options.
+    # Available options:
+    #   :to => canvas - The canvas (streaming or otherwise) to render to. Has to respond to #write
+    def render_with_options(options = {}, &block)
+      set_canvas(options.delete(:to)) if options.has_key? :to
+      @options = options
+      render_with_cache(options, &block)
+      @output
+    end
+
+    def cache_key
+      @cache_key ||= Digest::SHA1::hexdigest begin
+        if subject.respond_to? :cache_key
+          "#{I18n.locale}/#{self.class.name.demodulize}/#{subject.cache_key}/#{@options.sort_by(&:to_s)}"
+        else
+          subject.inspect
+        end
+      end
+    end
+
+    def cached?
+      cache? && Rails.cache.exist?(cache_key)
+    end
+
+    private
+
+    def cache?
+      !self.class.dont_cache?
+    end
+
+    ##
+    # Render this widget or serve it from cache
+    def render_with_cache(_options = {}, &block)
+      if cached?
+        write Rails.cache.fetch(cache_key)
+      else
+        render(&block)
+        Rails.cache.write(cache_key, @cache_output || @output) if cache?
+      end
+    end
+
+    ##
+    # Set the canvas. If the canvas object isn't a string (e.g. cannot be cached easily),
+    # a @cache_output String is created, that will mirror what is being written to the canvas.
+    def set_canvas(canvas)
+      @cache_output = ''.html_safe
+      @output = canvas
+    end
+  end
+end