Chris@1517: class ChangeUsersMailNotificationToString < ActiveRecord::Migration
Chris@1517:   def self.up
Chris@1517:     rename_column :users, :mail_notification, :mail_notification_bool
Chris@1517:     add_column :users, :mail_notification, :string, :default => '', :null => false
Chris@1517:     User.where("mail_notification_bool = #{connection.quoted_true}").
Chris@1517:       update_all("mail_notification = 'all'")
Chris@1517:     User.where("EXISTS (SELECT 1 FROM #{Member.table_name} WHERE #{Member.table_name}.mail_notification = #{connection.quoted_true} AND #{Member.table_name}.user_id = #{User.table_name}.id)").
Chris@1517:       update_all("mail_notification = 'selected'")
Chris@1517:     User.where("mail_notification NOT IN ('all', 'selected')").
Chris@1517:       update_all("mail_notification = 'only_my_events'")
Chris@1517:     remove_column :users, :mail_notification_bool
Chris@1517:   end
Chris@1517: 
Chris@1517:   def self.down
Chris@1517:     rename_column :users, :mail_notification, :mail_notification_char
Chris@1517:     add_column :users, :mail_notification, :boolean, :default => true, :null => false
Chris@1517:     User.where("mail_notification_char <> 'all'").
Chris@1517:       update_all("mail_notification = #{connection.quoted_false}")
Chris@1517:     remove_column :users, :mail_notification_char
Chris@1517:   end
Chris@1517: end