function entityreference_field_views_data_views_data_alter

Implements hook_field_views_data_views_data_alter().

Views integration to provide reverse relationships on entityreference fields.

File

core/modules/entityreference/views/entityreference.views.inc, line 56

Views integration for Entity Reference.

Code

function entityreference_field_views_data_views_data_alter(&$data, $field) {
  foreach ($field['bundles'] as $entity_type => $bundles) {
    $target_entity_info = entity_get_info($field['settings']['target_type']);
    if (isset($target_entity_info['base table'])) {
      $entity_info = entity_get_info($entity_type);
      if (empty($entity_info)) {
        watchdog(
        'entityreference', 
        'Field %field_name refers to nonexistent entity type %type. You might want to remove this broken field instance. <a href="https://www.drupal.org/docs/7/modules/views/data-fix-field-field-refers-to-nonexistent-entity-type-type">See documentation.</a>', 
        array('%field_name' => $field['field_name'], '%type' => $entity_type), 
        WATCHDOG_WARNING
        );
        continue;
      }
      $entity = $entity_info['label'];
      if ($entity == t('Node')) {
        $entity = t('Content');
      }
      $target_entity = $target_entity_info['label'];
      if ($target_entity == t('Node')) {
        $target_entity = t('Content');
      }

      $pseudo_field_name = 'reverse_' . $field['field_name'] . '_' . $entity_type;
      $replacements = array('@entity' => $entity, '@target_entity' => $target_entity, '!field_name' => $field['field_name']);
      $data[$target_entity_info['base table']][$pseudo_field_name]['relationship'] = array(
        'handler' => 'views_handler_relationship_entity_reverse',
        'field_name' => $field['field_name'],
        'field table' => _field_sql_storage_tablename($field),
        'field field' => $field['field_name'] . '_target_id',
        'base' => $entity_info['base table'],
        'base field' => $entity_info['entity keys']['id'],
        'label' => t('@entity referencing @target_entity from !field_name', $replacements),
        'group' => t('Entity Reference'),
        'title' => t('Referencing entity'),
        'help' => t('A bridge to the @entity entity that is referencing @target_entity via !field_name', $replacements),
        'join_extra' => array(
          0 => array(
            'field' => 'entity_type',
            'value' => $entity_type,
          ),
          1 => array(
            'field' => 'deleted',
            'value' => 0,
            'numeric' => TRUE,
          ),
        ),
      );
    }
  }
}