function media_browser_plus_taxonomy_term_delete in Media Browser Plus 7.3

Same name and namespace in other branches

1. 7.2 media_browser_plus.module \media_browser_plus_taxonomy_term_delete()

Implements hook_taxonomy_term_delete().

See also

media_browser_plus_form_taxonomy_term_confirm_delete_submit()

File

./media_browser_plus.module, line 664

Media Browser Plus - enhanced file management functions.

Code

function media_browser_plus_taxonomy_term_delete($term) {
  static $term_hierarchy_filter;

  // Figure out if this is a folder term and if so handle the related files.
  $vocabulary = taxonomy_vocabulary_machine_name_load('media_folders');
  if (!empty($vocabulary) && $term->vid == $vocabulary->vid) {

    // Skip if this term is already handled here by its parent term.
    if (isset($term_hierarchy_filter[$term->tid])) {
      unset($term_hierarchy_filter[$term->tid]);
      return;
    }

    // Create an array of all the folders to handle.
    $folders = array(
      '0:' . $term->tid => $term,
    );

    // Fetch all sub-folders.
    $tree = taxonomy_get_tree($term->vid, $term->tid);
    foreach ($tree as $subterm) {
      $folders[$subterm->depth + 1 . ':' . $subterm->tid] = $subterm;
      $term_hierarchy_filter[$subterm->tid] = $subterm->tid;
    }

    // Ensure the order for processing is right.
    krsort($folders);
    $all_files_deleted = TRUE;
    $used_files = array();
    foreach ($folders as $folder) {

      // Fetch all files from the folder.
      $file_query = new EntityFieldQuery();
      $files = $file_query
        ->entityCondition('entity_type', 'file')
        ->fieldCondition('field_folder', 'tid', $folder->tid)
        ->execute();

      // If there are files, delete them if possible.
      if (!empty($files['file'])) {
        $files = file_load_multiple(array_keys($files['file']));
        foreach ($files as $file) {
          if (($file_usage = file_delete($file)) !== TRUE) {
            $all_files_deleted = FALSE;
            if (is_array($file_usage)) {
              $used_files[$file->fid] = $file_usage;
            }
          }
        }
      }

      // Also delete the folder when it's empty.
      if ($all_files_deleted && ($dir = media_browser_plus_construct_dir_path($folder))) {
        foreach (media_get_local_stream_wrappers() as $scheme => $scheme_info) {
          $folder_path = file_stream_wrapper_uri_normalize($scheme . '://' . $dir);
          if (!@drupal_rmdir($folder_path)) {
            drupal_set_message(t('Unable to delete the folder (!path) on the disk', array(
              '!path' => $folder_path,
            )), 'error');
          }
        }
      }
    }
    if (!$all_files_deleted) {
      $list = array();
      foreach ($used_files as $fid => $usage) {
        $file = file_load($fid);
        $list['items'][] = l($file->filename, 'file/' . $fid . '/usage');
      }
      drupal_set_message(t("Some of the files in the folder are used and can't be deleted:") . theme('item_list', $list), 'error');
    }

    // Clear view cache for media browser plus folders.
    media_browser_plus_clear_views_cache('media_browser_plus_folders');
  }
}