function availability_calendar_field_views_data_views_data_alter in Availability Calendars 7.5

Implements hook_field_views_data_views_data_alter().

Field modules can implement hook_field_views_data_views_data_alter() to alter the views data on a per field basis. This is weirdly named so as not to conflict with the drupal_alter('field_views_data') in field_views_data.

We add:

• reverse relationships on availability calendars to entities that use it.

Based on code copied from views/modules/file.field.inc

Parameters

array $data:

array $field:

File

views/availability_calendar.views.inc, line 111

Views support for Availability Calendar.

Code

function availability_calendar_field_views_data_views_data_alter(&$data, $field) {

  // Get some info for easy use later on.
  $field_name = $field['field_name'];
  $field_table_name = key($field['storage']['details']['sql']['FIELD_LOAD_CURRENT']);

  // Define reverse entity relations to entities using calendars via this field
  foreach ($field['bundles'] as $entity_type => $bundles) {
    $entity_info = entity_get_info($entity_type);
    $pseudo_field_name = "reverse_{$field_name}_{$entity_type}";
    list($label) = field_views_field_label($field_name);
    $entity = $entity_info['label'];
    if ($entity == t('Node')) {
      $entity = t('Content');
    }
    $data['availability_calendar_calendar'][$pseudo_field_name]['relationship'] = array(
      'title' => t('@entity using @field', array(
        '@entity' => $entity,
        '@field' => $label,
      )),
      'help' => t('Relate each @entity with a @field set to this availability calendar.', array(
        '@entity' => $entity,
        '@field' => $label,
      )),
      'handler' => 'views_handler_relationship_entity_reverse',
      'field_name' => $field_name,
      'field table' => $field_table_name,
      'field field' => "{$field_name}_cid",
      'base' => $entity_info['base table'],
      'base field' => $entity_info['entity keys']['id'],
      'label' => t('!field_name', array(
        '!field_name' => $field_name,
      )),
      'join_extra' => array(
        0 => array(
          'field' => 'entity_type',
          'value' => $entity_type,
        ),
        1 => array(
          'field' => 'deleted',
          'value' => 0,
          'numeric' => TRUE,
        ),
      ),
    );
  }
}