class ChangePermissionsCustomFolders < ActiveRecord::DataMigration def up say 'Changing permissions of custom folders for existing records...' project_manager_directory_ids = Directory.where(permissions: "Account Managers Only").map(&:id) account_manager_directory_ids = Directory.where(permissions: "Account Managers & Project Managers").map(&:id) Directory.where(id: project_manager_directory_ids).update_all(permissions: "Account Managers & Project Managers") Directory.where(id: account_manager_directory_ids).update_all(permissions: "Account Managers Only") say 'Done' end end