chris@37: # Patch the data from a boolean change.
chris@37: class UpdateMailNotificationValues < ActiveRecord::Migration
chris@37:   def self.up
chris@37:     User.update_all("mail_notification = 'all'", "mail_notification IN ('1', 't')")
chris@37:     User.update_all("mail_notification = 'selected'", "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@37:     User.update_all("mail_notification = 'only_my_events'", "mail_notification NOT IN ('all', 'selected')")
chris@37:   end
chris@37: 
chris@37:   def self.down
chris@37:     # No-op
chris@37:   end
chris@37: end