qimall/console/migrations/M250908094513AlterQimalGoodsExtra.php

<?php

namespace app\migrations;

use yii\db\Migration;
use yii\db\Schema;
/**
 * Class M250908091713AlterQimalGoodsExtra.php
 */
class M250908094513AlterQimalGoodsExtra extends Migration
{
    /**
     * {@inheritdoc}
     */

    public function safeUp()
    {
        $this->addColumnIfNotExists(
            'qimall_goods_extra',
            'is_member_alone_buy_limit',
            Schema::TYPE_TINYINT . ' DEFAULT 0 COMMENT "是否会员指定等级每月限购数量"'
        );
        $this->addColumnIfNotExists(
            'qimall_goods_extra',
            'member_alone_buy_limit_setting',
            Schema::TYPE_TEXT . ' COMMENT "会员指定等级每月限购数量设置"'
        );
    }

    protected function addColumnIfNotExists($table, $column, $type)
    {
        $transaction = $this->db->beginTransaction();
        try {
            $tableSchema = $this->db->getSchema()->getTableSchema($table);
            if ($tableSchema && !isset($tableSchema->columns[$column])) {
                $this->addColumn($table, $column, $type);
                $transaction->commit();
                return true;
            }
        } catch (\Exception $e) {
            $transaction->rollback();
            throw $e;
        }
        return false;
    }

    /**
     * {@inheritdoc}
     */
    public function safeDown()
    {
        echo "M250822175613AlterQimalGoodsExtra.php cannot be reverted.\n";

        return false;
    }

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

    }

    public function down()
    {
        echo "M250729084413AlterQimallAddonsStoreGoodsExtra cannot be reverted.\n";

        return false;
    }
    */
}