qimall/console/migrations/M241224065527AddSignToUserWithdrawLog.php

<?php

namespace app\migrations;

use yii\db\Migration;

/**
 * Class M241224065527AddSignToUserWithdrawLog
 */
class M241224065527AddSignToUserWithdrawLog extends Migration
{
    /**
     * {@inheritdoc}
     */
    public function safeUp()
    {
        $res = \Yii::$app->db->schema->getTableSchema("qimall_user_withdraw_log",true);
        if(!$res->getColumn('sign')){
            $sql = "ALTER TABLE `qimall_user_withdraw_log` ADD COLUMN `sign` varchar(45) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL DEFAULT '' COMMENT '提现标识';";

            $this->execute($sql);
        }

    }

    /**
     * {@inheritdoc}
     */
    public function safeDown()
    {
        echo "M241224065527AddSignToUserWithdrawLog cannot be reverted.\n";

        return false;
    }

    /*
    // Use up()/down() to run migration code without a transaction.
    public function up()
    {

    }

    public function down()
    {
        echo "M241224065527AddSignToUserWithdrawLog cannot be reverted.\n";

        return false;
    }
    */
}