execute("ALTER table qimall_user_withdraw_log add source VARCHAR(255) not null default ''COMMENT'来源';"); } /** * {@inheritdoc} */ public function safeDown() { echo "M240812060019AlterQimallUserWithdrawLog cannot be reverted.\n"; return false; } /* // Use up()/down() to run migration code without a transaction. public function up() { } public function down() { echo "M240812060019AlterQimallUserWithdrawLog cannot be reverted.\n"; return false; } */ }