executeQuery("ALTER TABLE `" . hesk_dbEscape($hesk_settings['db_pfix']) . "attachments` MODIFY COLUMN `ticket_id` VARCHAR(13) NULL"); } function down($hesk_settings) { $this->executeQuery("ALTER TABLE `" . hesk_dbEscape($hesk_settings['db_pfix']) . "attachments` MODIFY COLUMN `ticket_id` VARCHAR(13) NOT NULL DEFAULT ''"); } }