Club Drupal

<?php

/**

 * @file

 * Provides entity property info for field collection items.

 */

class FieldCollectionItemMetadataController extends EntityDefaultMetadataController {

  public function entityPropertyInfo() {

    $info = parent::entityPropertyInfo();

    $properties = &$info['field_collection_item']['properties'];

    $properties['field_name']['label'] = t('Field name');

    $properties['field_name']['description'] = t('The machine-readable name of the field collection field containing this item.');

    $properties['field_name']['required'] = TRUE;

    $properties['host_entity'] = array(

      'label' => t('Host entity'),

      'type' => 'entity',

      'description' => t('The entity containing the field collection field.'),

      'getter callback' => 'field_collection_item_get_host_entity',

      'setter callback' => 'field_collection_item_set_host_entity',

      'required' => TRUE,

    );

    // Also add type-specific host entity references for all entity types that

    // have at least one field collection field.

    $field_collection_fields = field_read_fields(array('type' => 'field_collection'));

    $entity_types = entity_get_info();

    foreach (field_info_instances() as $entity_type => $bundles) {

      foreach ($bundles as $bundle => $fields) {

        if (array_intersect_key($fields, $field_collection_fields)) {

          $args = array('@type' => $entity_types[$entity_type]['label']);

          $properties["host_entity_{$entity_type}"] = array(

            'label' => t('Host entity (@type)', $args),

            'type' => $entity_type,

            'description' => t('The @type containing the field collection field (empty if this field collection is attached to an item of a different type).', $args),

            'getter callback' => 'field_collection_item_get_specific_type_host_entity',

            'computed' => TRUE,

          );

          break;

        }

      }

    }

    return $info;

  }

}