Relationship Calentry,Calendar

db/migrate/20130808062732_create_calendar_calentries_join_table.rb

@@ -0,0 +1,13 @@
+class CreateCalendarCalentriesJoinTable < ActiveRecord::Migration
+  def up
+  create_table :calendars_calentries, :id=>false do |t|
+      t.integer  :calentry_id
+      t.integer  :calendar_id
+    end
+    add_index :calendars_calentries, [:calentry_id, :calendar_id]
+    add_index :calendars_calentries, :calendar_id
+  end
+
+  def down
+  end
+end