execute("ALTER TABLE qimall_order add `clerk_code` varchar(12) NOT NULL DEFAULT '' COMMENT '核销码';"); } /** * {@inheritdoc} */ public function safeDown() { echo "M240301094226AlterQimallOrder cannot be reverted.\n"; return false; } /* // Use up()/down() to run migration code without a transaction. public function up() { } public function down() { echo "M240301094226AlterQimallOrder cannot be reverted.\n"; return false; } */ }