<?php
    
    use yii\db\Migration;
    
    class m170929_083119_add_preview_column_to_persone_lang extends Migration
    {
        public function safeUp()
        {
            $this->addColumn('persone_lang', 'preview', $this->string());
        }
        
        public function safeDown()
        {
            $this->dropColumn('persone_lang', 'preview');
        }
    }