<?php

namespace app\migrations;

use yii\db\Migration;

/**
 * Class M250108104921AddOrderSourceToOrderRefund
 */
class M250108104921AddOrderSourceToOrderRefund extends Migration
{
    /**
     * {@inheritdoc}
     */
    public function safeUp()
    {
        $res = \Yii::$app->db->schema->getTableSchema("qimall_order_refund",true);
        if(!$res->getColumn('order_source')){
            $sql = "ALTER TABLE `qimall_order_refund` ADD COLUMN `order_source` varchar(20) NOT NULL DEFAULT '' COMMENT '订单来源';";

            $this->execute($sql);
        }
    }

    /**
     * {@inheritdoc}
     */
    public function safeDown()
    {
        echo "M250108104921AddOrderSourceToOrderRefund cannot be reverted.\n";

        return false;
    }

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

    }

    public function down()
    {
        echo "M250108104921AddOrderSourceToOrderRefund cannot be reverted.\n";

        return false;
    }
    */
}