title: Display name instead of DB value in SonataAdmin List View
body: <p>I'm having a problem when I try to list the record from DB since I get the value stored in row which is a integer but I want the string instead. How I'm handling the form? In this way:</p>
  <pre><code>protected function configureFormFields(FormMapper $form) {
      $form
              -&gt;add('no_order', null, array('label' =&gt; 'No. Order'))
              -&gt;add('company', 'entity', array('class' =&gt; 'PL\CompanyBundle\Entity\Company', 'label' =&gt; 'Cliente'))
              -&gt;add('business_case', null, array('label' =&gt; 'BC'))
              -&gt;add('charge_status', 'choice', array('choices' =&gt; array(
                      &quot;empty_value&quot; =&gt; &quot;Seleccione una opción&quot;,
                      &quot;0&quot; =&gt; &quot;Ninguno&quot;,
                      &quot;1&quot; =&gt; &quot;Proceso de Fabricacion&quot;,
                      &quot;2&quot; =&gt; &quot;Pickup en destino&quot;,
                      &quot;3&quot; =&gt; &quot;A la espera de recojo por cliente&quot;,
                      &quot;4&quot; =&gt; &quot;Carga en transito&quot;,
                      &quot;5&quot; =&gt; &quot;Carga arribada&quot;,
                      &quot;6&quot; =&gt; &quot;En proceso de aduana&quot;,
                      &quot;7&quot; =&gt; &quot;Entregado a cliente&quot;,
                      &quot;8&quot; =&gt; &quot;En bodega&quot;
                  ), &quot;required&quot; =&gt; true, 'label' =&gt; 'Estado de la carga'))
              -&gt;add('eta', null, array('label' =&gt; 'ETA', 'widget' =&gt; 'single_text', 'required' =&gt; false, 'attr' =&gt; array('class' =&gt; 'datepicker')))
              -&gt;add('etd', null, array('label' =&gt; 'ETD', 'widget' =&gt; 'single_text', 'required' =&gt; false, 'attr' =&gt; array('class' =&gt; 'datepicker')))
              -&gt;add('transport_media', 'choice', array('choices' =&gt; array(&quot;empty_value&quot; =&gt; &quot;Seleccione una opción&quot;, &quot;0&quot; =&gt; &quot;EXW&quot;, &quot;1&quot; =&gt; &quot;Maritimo&quot;, &quot;2&quot; =&gt; &quot;Aereo&quot;), &quot;required&quot; =&gt; true, 'label' =&gt; 'Via de Transporte'))
              -&gt;add('incoterm', 'choice', array('choices' =&gt; array(
                      &quot;empty_value&quot; =&gt; &quot;Seleccione una opción&quot;,
                      &quot;0&quot; =&gt; &quot;Ninguno&quot;,
                      &quot;1&quot; =&gt; &quot;EWX&quot;,
                      &quot;2&quot; =&gt; &quot;FOB&quot;,
                      &quot;3&quot; =&gt; &quot;CIF&quot;,
                      &quot;4&quot; =&gt; &quot;DDP&quot;
                  ), &quot;required&quot; =&gt; true, 'label' =&gt; 'Incoterm'))
              -&gt;add('comments', null, array('label' =&gt; 'Comentarios'))
              -&gt;with('Documentos')
              -&gt;add('medias', 'sonata_type_collection', array(
                  'required' =&gt; false), array(
                  'edit' =&gt; 'inline',
                  'inline' =&gt; 'table',
                  'sortable' =&gt; 'position'))
              -&gt;end();
  }
  </code></pre>
  <p>I define <code>charge_status</code> (is the equivalent to BC in view) as choice, how I can show the string and not the value in the list view? See the attached image for visual of the problem</p>
  <p><img src="https://i.stack.imgur.com/bwKWL.png" alt="enter image description here" /></p>