qimall/addons/SmartForm/console/migrations/M240608071421UpdateTitleTipsPlaceholderLength.php

<?php

namespace addons\SmartForm\console\migrations;

use yii\db\Migration;

/**
 * Class M240608071421UpdateTitleTipsPlaceholderLength
 * 更新title tips placeholder 字段长度
 */
class M240608071421UpdateTitleTipsPlaceholderLength extends Migration
{
    /**
     * {@inheritdoc}
     */
    public function safeUp()
    {
        $sql = <<<UPDATE
ALTER TABLE `qimall_addons_smart_form_template_column` 
MODIFY COLUMN `placeholder` text CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NULL COMMENT '简短提示' AFTER `tips`;
UPDATE;

        $this->execute($sql);
    }

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

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

    }

    public function down()
    {
        echo "M240608071421UpdateTitleTipsPlaceholderLength cannot be reverted.\n";

        return false;
    }
    */
}