Allow for filtering on latest_activity_at, while not yet resolving timezone difficulties.

app/assets/javascripts/project/filters.js

@@ -110,9 +110,9 @@ jQuery(function($) {
               filters.push(filterParam);
             }
           } else if ($valueBlock.hasClass('between-dates')) {
-            let fromValue = $('.between-dates #between-dates-from-value',
+            let fromValue = $('.between-dates input[name="from_value"]',
                               $valueBlock).val();
-            let toValue =   $('.between-dates #between-dates-to-value',
+            let toValue =   $('.between-dates input[name="to_value"]',
                               $valueBlock).val();
             if (value.length > 0) {
               filterParam[filterName] = {

app/helpers/projects_helper.rb

@@ -133,7 +133,7 @@ module ProjectsHelper
   end
 
   def allowed_filters(query)
-    filters_static = %i(status name_and_identifier created_on)
+    filters_static = %i(status name_and_identifier created_on latest_activity_at)
     filters_dynamic = []
     if EnterpriseToken.allows_to?(:custom_fields_in_projects_list)
       filters_dynamic = ProjectCustomField
@@ -159,6 +159,6 @@ module ProjectsHelper
   end
 
   def admin_only_filters
-    %i(created_on)
+    %i(created_on latest_activity_at)
   end
 end

app/models/queries/filters/strategies/date_time_past.rb

@@ -31,7 +31,7 @@ module Queries::Filters::Strategies
   class DateTimePast < BaseStrategy
     supported_operator_list ['>t-', '<t-', 't-', 't', 'w', '=d', '<>d']
 
-    default_operator '<t-'
+    default_operator '>t-'
 
     def validate
       if operator == Queries::Operators::OnDateTime ||

app/models/queries/projects.rb

@@ -37,4 +37,5 @@ module Queries::Projects
   register.filter query, filters::NameAndIdentifierFilter
   register.filter query, filters::CustomFieldFilter
   register.filter query, filters::CreatedOnFilter
+  register.filter query, filters::LatestActivityAtFilter
 end

app/models/queries/projects/filters/latest_activity_at_filter.rb

@@ -0,0 +1,57 @@
+#-- encoding: UTF-8
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2017 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.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2017 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# 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 2
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+class Queries::Projects::Filters::LatestActivityAtFilter < Queries::Projects::Filters::ProjectFilter
+
+  self.model = Project.with_latest_activity
+
+  def type
+    :datetime_past
+  end
+
+  def self.key
+    :latest_activity_at
+  end
+
+  def name
+    :latest_activity_at
+  end
+
+  def human_name
+    I18n.t('activerecord.attributes.project.latest_activity_at')
+  end
+
+  def where
+    operator_strategy.sql_for_field(values, "activity", self.class.key)
+  end
+
+  def order
+    9
+  end
+end

app/views/projects/index.html.erb

@@ -56,7 +56,7 @@ See doc/COPYRIGHT.rdoc for more details.
 <% end %>
 
 <%= form_tag({}, method: :get, class: "project-filters #{filter_set? ? '-expanded' : ''}") do %>
-  <% operators_without_values = ['*', '!*'] %>
+  <% operators_without_values = ['*', '!*', 't', 'w'] %>
   <fieldset class="advanced-filters--container">
     <a id="projects-filter-close-button" title="{{ ::I18n.t('js.close_form_title') }}" class="simple-filters--close icon-context icon-close"></a>
     <legend><%= t(:label_filter_plural) %></legend>
@@ -153,18 +153,18 @@ See doc/COPYRIGHT.rdoc for more details.
               <div class="on-date">
                 <div class="form--field-container">
                   <div class="form--text-field-container -slim">
-                    <%= text_field_tag :value, value_format == 'on-date' ? filter.values.first : '', id: "on-date-value", class: 'advanced-filters--text-field -slim', size: '10' %>
-                    <%= calendar_for('on-date-value') %>
+                    <%= text_field_tag :value, value_format == 'on-date' ? filter.values.first : '', id: "on-date-value-#{filter.name}", class: 'advanced-filters--text-field -slim', size: '10' %>
+                    <%= calendar_for("on-date-value-#{filter.name}") %>
                   </div>
                 </div>
               </div>
               <div class="between-dates">
                 <span>From:</span>
-                <%= text_field_tag :value, value_format == 'between-dates' ? filter.values.first : '', id: "between-dates-from-value", class: 'advanced-filters--text-field -slim', size: '10' %>
-                <%= calendar_for('between-dates-from-value') %>
+                <%= text_field_tag :from_value, value_format == 'between-dates' ? filter.values.first : '', id: "between-dates-from-value-#{filter.name}", class: 'advanced-filters--text-field -slim', size: '10' %>
+                <%= calendar_for("between-dates-from-value-#{filter.name}") %>
                 <span>To:</span>
-                <%= text_field_tag :value, value_format == 'between-dates' ? filter.values.second : '', id: "between-dates-to-value", class: 'advanced-filters--text-field -slim', size: '10' %>
-                <%= calendar_for('between-dates-to-value') %>
+                <%= text_field_tag :to_value, value_format == 'between-dates' ? filter.values.second : '', id: "between-dates-to-value-#{filter.name}", class: 'advanced-filters--text-field -slim', size: '10' %>
+                <%= calendar_for("between-dates-to-value-#{filter.name}") %>
               </div>
             </div>
           <% else %>