title: Change value in gridview colums yii2
body: <p>I have this in my view</p>
  
  <pre><code>'columns' =&gt; [
      ['class' =&gt; 'yii\grid\SerialColumn'],
      [
          'attribute' =&gt; 'order_delivery_address_city',
          'value' =&gt; 'address.order_delivery_address_city'
      ],
  </code></pre>
  
  <p>which shows field like '1' or '2' or '3'... How to change it to be like this </p>
  
  <pre><code>if (address.order_delivery_address_city == '1') {
      'value' =&gt; 'New-York'
  }
  </code></pre>