classEnableCalendarAndGanttModulesWhereAppropriate<ActiveRecord::Migration[4.2]defself.upEnabledModule.where(:name=>'issue_tracking').eachdo|e|EnabledModule.create(:name=>'calendar',:project_id=>e.project_id)EnabledModule.create(:name=>'gantt',:project_id=>e.project_id)endenddefself.downEnabledModule.where("name = 'calendar' OR name = 'gantt'").delete_allendend