[Bugfix] Conference methods related to weeks now database independent

app/models/conference.rb

@@ -179,7 +179,7 @@ class Conference < ActiveRecord::Base
     result = []
 
     if call_for_papers && events
-      submissions = events.group("strftime('%W', created_at)").count
+      submissions = events.group(:week).count
       start_week = call_for_papers.start_week
       weeks = call_for_papers.weeks
       result = calculate_items_per_week(start_week, weeks, submissions)
@@ -196,7 +196,7 @@ class Conference < ActiveRecord::Base
     result = []
 
     if call_for_papers && events
-      submissions = events.where('state = ?', state).group("strftime('%W', created_at)").count
+      submissions = events.where('state = ?', state).group(:week).count
       start_week = call_for_papers.start_week
       weeks = call_for_papers.weeks
       result = calculate_items_per_week(start_week, weeks, submissions)
@@ -216,7 +216,7 @@ class Conference < ActiveRecord::Base
         registration_start_date &&
         registration_end_date
 
-      reg = registrations.group("strftime('%W', created_at)").count
+      reg = registrations.group(:week).count
       start_week = get_registration_start_week
       weeks = registration_weeks
       result = calculate_items_per_week(start_week, weeks, reg)

app/models/event.rb

@@ -5,6 +5,8 @@ class Event < ActiveRecord::Base
 
   acts_as_commentable
 
+  after_create :set_week
+
   has_many :event_people, :dependent => :destroy
   has_many :event_attachments, :dependent => :destroy
   has_many :people, :through => :event_people
@@ -203,4 +205,8 @@ class Event < ActiveRecord::Base
     self.guid = guid
   end
 
+  def set_week
+    self.week = created_at.strftime('%W')
+    save!
+  end
 end

app/models/registration.rb

@@ -34,7 +34,16 @@ class Registration < ActiveRecord::Base
   
   alias_attribute :other_needs, :other_special_needs
 
+  after_create :set_week
+
   def week
     created_at.strftime('%W').to_i
   end
+
+  private
+
+  def set_week
+    self.week = created_at.strftime('%W')
+    save!
+  end
 end