function multifield_field_access in Multifield 7

Same name and namespace in other branches

1. 7.2 multifield.field.inc \multifield_field_access()

Implements hook_field_access().

@todo Investigate improving performance of this function.

File

./multifield.field.inc, line 142

Field integration for the Multifield module.

Code

function multifield_field_access($op, $field, $entity_type, $entity, $account) {

  // We should return FALSE if all the subfields' field_access() checks all
  // return FALSE.
  if ($machine_name = multifield_extract_multifield_machine_name($field)) {
    $subfield_names = multifield_type_get_subfields($machine_name);
    $subfield_access = array();
    if (!empty($entity) && ($items = field_get_items($entity_type, $entity, $field['field_name']))) {
      foreach ($items as $delta => $item) {
        $pseudo_entity = _multifield_field_item_to_entity($machine_name, $item);
        foreach ($subfield_names as $subfield_name) {
          $subfield = field_info_field($subfield_name);
          $subfield_access[$subfield_name . ':' . $delta] = field_access($op, $subfield, 'multifield', $pseudo_entity, $account);
        }
      }
    }
    else {
      foreach ($subfield_names as $subfield_name) {
        $subfield = field_info_field($subfield_name);
        $subfield_access[$subfield_name] = field_access($op, $subfield, 'multifield', NULL, $account);
      }
    }

    // If all of the subfields returned FALSE, then this should return FALSE.
    if (!array_filter($subfield_access)) {
      return FALSE;
    }
  }
}