qimall/console/migrations/M241204120305AddShippedColumnToOrderDetail.php

<?php

namespace app\migrations;

use yii\db\Migration;

/**
 * Class M241204120305AddShippedColumnToOrderDetail
 */
class M241204120305AddShippedColumnToOrderDetail extends Migration
{
    /**
     * {@inheritdoc}
     */
    public function safeUp()
    {
        $sql = <<<SQL
ALTER TABLE `qimall_order_detail` 
ADD COLUMN `shipped_num` int UNSIGNED NOT NULL DEFAULT 0 COMMENT '已发货数量';

UPDATE `qimall_order_detail` SET `unshipped_num` = `num` WHERE `shipping_status` = 0 and `unshipped_num` = 0;
UPDATE `qimall_order_detail` SET `shipped_num` = `num` - `unshipped_num`;

ALTER TABLE `qimall_order_detail` 
DROP COLUMN `unshipped_num`;
SQL;

        $this->execute($sql);
    }

    /**
     * {@inheritdoc}
     */
    public function safeDown()
    {
        return false;
    }

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

    }

    public function down()
    {
        echo "M241204120305AddShippedColumnToOrderDetail cannot be reverted.\n";

        return false;
    }
    */
}