Merged r11762 and r11763 from trunk (#13783).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/2.3-stable@11835 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/enumeration.rb

@@ -38,6 +38,7 @@ class Enumeration < ActiveRecord::Base
   scope :shared, lambda { where(:project_id => nil) }
   scope :sorted, lambda { order("#{table_name}.position ASC") }
   scope :active, lambda { where(:active => true) }
+  scope :system, lambda { where(:project_id => nil) }
   scope :named, lambda {|arg| where("LOWER(#{table_name}.name) = LOWER(?)", arg.to_s.strip)}
 
   def self.default

app/models/time_entry_activity.rb

@@ -24,11 +24,15 @@ class TimeEntryActivity < Enumeration
     OptionName
   end
 
+  def objects
+    TimeEntry.where(:activity_id => self_and_descendants(1).map(&:id))
+  end
+
   def objects_count
-    time_entries.count
+    objects.count
   end
 
   def transfer_relations(to)
-    time_entries.update_all("activity_id = #{to.id}")
+    objects.update_all(:activity_id => to.id)
   end
 end