Imbo\Model\Images::getFields PHP Method

    public function getFields()
    {
        return $this->fields;
    }

 /**
  * {@inheritdoc}
  */
 public function formatImages(Model\Images $model)
 {
     $images = $model->getImages();
     $data = array();
     // Fields to display
     if ($fields = $model->getFields()) {
         $fields = array_fill_keys($fields, 1);
     }
     foreach ($images as $image) {
         $entry = array('added' => $this->dateFormatter->formatDate($image->getAddedDate()), 'updated' => $this->dateFormatter->formatDate($image->getUpdatedDate()), 'checksum' => $image->getChecksum(), 'originalChecksum' => $image->getOriginalChecksum(), 'extension' => $image->getExtension(), 'size' => $image->getFilesize(), 'width' => $image->getWidth(), 'height' => $image->getHeight(), 'mime' => $image->getMimeType(), 'imageIdentifier' => $image->getImageIdentifier(), 'publicKey' => $image->getPublicKey());
         // Add metadata if the field is to be displayed
         if (empty($fields) || isset($fields['metadata'])) {
             $metadata = $image->getMetadata();
             if (is_array($metadata)) {
                 if (empty($metadata)) {
                     $metadata = new stdClass();
                 }
                 $entry['metadata'] = $metadata;
             }
         }
         // Remove elements that should not be displayed
         if (!empty($fields)) {
             foreach (array_keys($entry) as $key) {
                 if (!isset($fields[$key])) {
                     unset($entry[$key]);
                 }
             }
         }
         $data[] = $entry;
     }
     return $this->encode(array('search' => array('hits' => $model->getHits(), 'page' => $model->getPage(), 'limit' => $model->getLimit(), 'count' => $model->getCount()), 'images' => $data));
 }