public function SlickFormatterPlugin::prepareView in Slick Carousel 7.3

Implements hook_field_formatter_prepare_view().

File

src/Plugin/Field/FieldFormatter/SlickFormatterPlugin.php, line 94

Class

SlickFormatterPlugin

Slick formatter initializer.

Namespace

Drupal\slick\Plugin\Field\FieldFormatter

Code

public function prepareView($entity_type, $entities, $field, $instances, &$items, $displays) {
  if (!isset($this->isViewPrepared[$field['type']])) {

    // Stolen from entityreference which stole from field.api.php to work with
    // the supported entity types. We do this to have one base class for
    // entities, BlazyEntityBase.
    // At D8, this is taken care of by core entity reference, but not at D7.
    if (in_array($field['type'], [
      'field_collection',
      'paragraphs',
    ])) {
      $is_slick = FALSE;
      foreach ($displays as $id => $display) {
        if ($display['type'] == 'slick' || $display['type'] == 'slick_' . $field['type']) {
          $is_slick = TRUE;
          break;
        }
      }
      if ($is_slick) {

        // @todo avoid hard-coded here, okay for now as we limit field types.
        $target_type = $field['type'] . '_item';
        $column = 'value';
        $target_ids = [];

        // Collect every possible entity attached to any of the entities.
        foreach ($entities as $id => $entity) {
          foreach ($items[$id] as $delta => $item) {
            if (isset($item[$column])) {
              $target_ids[] = $item[$column];
            }
          }
        }
        $target_entities = [];
        if ($target_ids) {
          $target_entities = entity_load($target_type, $target_ids);
        }

        // Iterate through the fieldable entities again to attach the data.
        foreach ($entities as $id => $entity) {
          $rekey = FALSE;
          foreach ($items[$id] as $delta => $item) {

            // Check whether the referenced entity could be loaded.
            if (is_array($target_entities) && isset($target_entities[$item[$column]]) && isset($target_entities[$item[$column]])) {

              // Replace the instance value with the entity data.
              $items[$id][$delta]['entity'] = $target_entities[$item[$column]];

              // Check whether the user has access to the referenced entity.
              $has_view_access = entity_access('view', $target_type, $target_entities[$item[$column]]) !== FALSE;
              $has_update_access = entity_access('update', $target_type, $target_entities[$item[$column]]) !== FALSE;
              $items[$id][$delta]['access'] = $has_view_access || $has_update_access;
            }
            else {
              unset($items[$id][$delta]);
              $rekey = TRUE;
            }
          }
          if ($rekey) {

            // Rekey the items array.
            $items[$id] = array_values($items[$id]);
          }
        }
      }
    }
    $this->isViewPrepared[$field['type']] = TRUE;
  }
  return $this->isViewPrepared[$field['type']];
}