Administrator / test_3

<?php

use yii\db\Migration;

class m160219_152535_add_preview_portfolio extends Migration
{
    public function up()
    {
        $this->addColumn('{{%portfolio}}', 'preview', $this->string(1000));
    }

    public function down()
    {
        $this->dropColumn('{{%portfolio}}', 'preview');
    }
}