function entity_metadata_field_file_validate_item in Entity API 7

Callback for validating file field $items.

1 string reference to 'entity_metadata_field_file_validate_item'

entity_metadata_field_file_callback in modules/field.info.inc

Additional callback to adapt the property info for file fields.

File

modules/callbacks.inc, line 640

Provides various callbacks for the whole core module integration.

Code

function entity_metadata_field_file_validate_item($items, $context) {

  // Allow NULL values.
  if (!isset($items)) {
    return TRUE;
  }

  // Stream-line $items for multiple vs non-multiple fields.
  $items = !entity_property_list_extract_type($context['type']) ? array(
    $items,
  ) : (array) $items;
  foreach ($items as $item) {

    // File-field items require a valid file.
    if (!isset($item['fid']) || !file_load($item['fid'])) {
      return FALSE;
    }
    if (isset($context['property info']['display']) && !isset($item['display'])) {
      return FALSE;
    }
  }
  return TRUE;
}