<?php

namespace app\migrations;

use yii\db\Migration;

/**
 *
 * Class M220915035028AddOldNameColumnToQimallAttachment
 */
class M220915035028AddOldNameColumnToQimallAttachment extends Migration
{
    /**
     * {@inheritdoc}
     */
    public function safeUp()
    {
        try {
            $sql = "ALTER TABLE qimall_attachment add `old_name` varchar(255) NOT NULL DEFAULT '' COMMENT '文件原名称' after name";
            $this->execute($sql);
        } catch (\Exception $e) {
            \Yii::error('qimall_attachment表添加字段报错' . $e->getMessage());

        }

    }

    /**
     * {@inheritdoc}
     */
    public function safeDown()
    {
        echo "M220915035028AddOldNameColumnToQimallAttachment cannot be reverted.\n";

        return false;
    }

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

    }

    public function down()
    {
        echo "M220915035028AddOldNameColumnToQimallAttachment cannot be reverted.\n";

        return false;
    }
    */
}