FRONTEND_MVC/migrations/m230609_070938_author_ext.php

<?php

use yii\db\Migration;

/**
 * Class m230609_070938_author_ext
 */
class m230609_070938_author_ext extends Migration
{
    /**
     * {@inheritdoc}
     */
    public function safeUp()
    {
	$sql = "ALTER TABLE `authors` ADD `description` TEXT NULL DEFAULT NULL COMMENT 'описание' AFTER `jobTitle`, ADD `text` TEXT NULL DEFAULT NULL COMMENT 'описание' AFTER `description`;";
	$this->execute($sql);
	$sql = "ALTER TABLE `authors` ADD `show` INT UNSIGNED DEFAULT 0 COMMENT 'показывать страницу' AFTER `active`;COMMIT;";
	$this->execute($sql);
    }

    /**
     * {@inheritdoc}
     */
    public function safeDown()
    {
        echo "m230609_070938_author_ext cannot be reverted.\n";

        return false;
    }

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

    }

    public function down()
    {
        echo "m230609_070938_author_ext cannot be reverted.\n";

        return false;
    }
    */
}