function video_field_validate in Video 7.2

Implements hook_field_validate().

This allows field validation even when the file is added programmatically to the entity. The function only validates new files, not files that have been added to the entity before.

File

./video.field.inc, line 358

Implement a video field, based on the file module's file field.

Code

function video_field_validate($entity_type, $entity, $field, $instance, $langcode, $items, &$errors) {
  $current_fids = array();

  // Get the video fids
  foreach ($items as $delta => $item) {
    if (empty($item['fid'])) {
      continue;
    }
    $current_fids[$item['fid']] = $item['fid'];
  }
  if (empty($current_fids)) {
    return;
  }

  // Create a bare-bones entity so that we can load its previous values.
  list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
  $original = entity_create_stub_entity($entity_type, array(
    $id,
    $vid,
    $bundle,
  ));
  field_attach_load($entity_type, array(
    $id => $original,
  ), FIELD_LOAD_CURRENT, array(
    'field_id' => $field['id'],
  ));

  // Remove the entries from $current_fids that are already present in the database,
  // leaving the ones that are new during this save operation.
  if (!empty($original->{$field['field_name']}[$langcode])) {
    foreach ($original->{$field['field_name']}[$langcode] as $originalitem) {
      if (isset($originalitem['fid']) && isset($current_fids[$originalitem['fid']])) {
        unset($current_fids[$originalitem['fid']]);
      }
    }
  }
  if (empty($current_fids)) {

    // No new files have been added, only new files are checked
    return;
  }
  $current_files = file_load_multiple($current_fids);
  $validators = file_field_widget_upload_validators($field, $instance);
  if (empty($validators)) {

    // No validation rules
    return;
  }

  // Validate the new entries
  foreach ($items as $delta => $item) {
    if (empty($item['fid']) || !isset($current_files[$item['fid']])) {
      continue;
    }
    $fileerrors = file_validate($current_files[$item['fid']], $validators);
    foreach ($fileerrors as $fileerror) {
      $errors[$field['field_name']][$langcode][$delta][] = array(
        'error' => 'video_upload',
        'message' => $fileerror,
      );
    }
  }
}