banki.test/migrations/m240819_102301_image.php

<?php

use yii\db\mysql\Schema;
use yii\db\Migration;

/**
 * Class m240819_102301_image
 */
class m240819_102301_image extends Migration
{
    /**
     * {@inheritdoc}
     */
    public function safeUp()
    {
        $this->createTable('image', [
            'id' => Schema::TYPE_PK,
            'sha256' => Schema::TYPE_STRING . ' NOT NULL',
            'original_name' => Schema::TYPE_STRING . ' NOT NULL'
        ]);
        $this->addColumn('parameters', 'icon', 'INT(11) DEFAULT NULL');
        $this->addColumn('parameters', 'icon_gray', 'INT(11) DEFAULT NULL');
    }

    /**
     * {@inheritdoc}
     */
    public function safeDown()
    {
        $this->dropTable('image');
        $this->dropColumn('parameters', 'icon');
        $this->dropColumn('parameters', 'icon_gray');
    }

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

    }

    public function down()
    {
        echo "m240819_102301_image cannot be reverted.\n";

        return false;
    }
    */
}