Merge branch 'feature/progress_report' of https://dev.finn.de/git/reporting-engine into feature/progress_report

Conflicts:
	assets/javascripts/reporting/controls.js
	config/locales/en.yml
	lib/widget/table/progressbar.rb

config/locales/de.yml

@@ -7,6 +7,8 @@ de:
   label_report: "Report"
   label_columns: "Spalten"
   label_rows: "Zeilen"
+  label_yes: Ja
+  label_no: Nein
 
   label_group_by: "Gruppieren nach"
   label_group_by_add: "Gruppierung hinzufügen"
@@ -22,3 +24,5 @@ de:
 
   validation_failure_date: "ist kein gültiges Datum"
   validation_failure_integer: "ist keine ganze Zahl"
+
+  load_query_question: "Der Report wird %{size} Tabellen-Zellen haben, was sehr rechenintensiv sein kann. Wollen Sie dennoch versuchen, den Report durch zu führen?"

config/locales/en.yml

@@ -13,6 +13,8 @@ en:
   label_filter: "Filter"
   label_filter_plural: "Filters"
   label_filter_add: Add Filter
+  label_yes: "Yes"
+  label_no: "No"
 
   label_count: Count
   label_sum: Sum
@@ -22,3 +24,5 @@ en:
 
   validation_failure_date: "is not a valid date"
   validation_failure_integer: "is not a valid integer"
+
+  load_query_question: "Report will have %{size} table cells and may take some time to render. Do you still want to try rendering it?"

lib/report.rb

@@ -123,7 +123,7 @@ class Report < ActiveRecord::Base
   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, :size, :final_number
+                    :units, :final_number
   def_delegators  :table, :row_index, :colum_index
 
   def to_a
@@ -134,6 +134,12 @@ class Report < ActiveRecord::Base
     chain.to_s
   end
 
+  def size
+    size = 0
+    recursive_each {|r| size += r.size }
+    size
+  end
+
   def hash
     report_string = ""