function media_field_widget_process_multiple in D7 Media 7.2

Same name and namespace in other branches

1. 7.4 includes/media.fields.inc \media_field_widget_process_multiple()
2. 7.3 includes/media.fields.inc \media_field_widget_process_multiple()

An element #process callback for a group of media fields.

Adds the weight field to each row so it can be ordered and adds a new Ajax wrapper around the entire group so it can be replaced all at once.

1 string reference to 'media_field_widget_process_multiple'

media_field_widget_form in includes/media.fields.inc

Implements hook_field_widget_form().

File

includes/media.fields.inc, line 334

Provide media selector widget and media field formatters to the fields API.

Code

function media_field_widget_process_multiple($element, &$form_state, $form) {

  // In order to support multiple selection, we need to reconstruct the _POST
  // data that is checked in media_attach_file(). We need to reconstruct the
  // field's _POST key name, for example: field_mediafield_und_0.
  $upload_name_prefix = implode('_', $element['#parents']) . '_';
  $upload_name = $upload_name_prefix . $element['#file_upload_delta'];
  if (!empty($_POST['media'][$upload_name])) {
    $files = explode(',', $_POST['media'][$upload_name]);
    $count = count($files);

    // Supposing #file_upload_delta is always the last delta this will work.
    for ($i = 0; $i < $count; $i++) {

      // For each file selected, increment the field key to be processed.
      // field_mediafield_und_0 becomes field_mediafield_und_1, etc.
      $_POST['media'][$upload_name_prefix . ($element['#file_upload_delta'] + $i)] = $files[$i];

      // Copy the default file element to each newly selected file position.
      $default_element = $element[$element['#file_upload_delta']];
      $element[] = array_merge($default_element, array(
        '#weight' => $element['#file_upload_delta'] + $i + 1,
      ));
    }
  }
  $element_children = element_children($element, TRUE);
  $count = count($element_children);
  foreach ($element_children as $delta => $key) {
    if ($key != $element['#file_upload_delta']) {
      $description = _media_field_get_description_from_element($element[$key]);
      $element[$key]['_weight'] = array(
        '#type' => 'weight',
        '#title' => $description ? t('Weight for @title', array(
          '@title' => $description,
        )) : t('Weight for new file'),
        '#title_display' => 'invisible',
        '#delta' => $count,
        '#default_value' => $delta,
      );
    }
    else {

      // The title needs to be assigned to the attach field so that validation
      // errors include the correct widget label.
      $element[$key]['#title'] = $element['#title'];
      $element[$key]['_weight'] = array(
        '#type' => 'hidden',
        '#default_value' => $delta,
      );
    }
  }

  // Add a new wrapper around all the elements for Ajax replacement.
  $element['#prefix'] = '<div id="' . $element['#id'] . '-ajax-wrapper">';
  $element['#suffix'] = '</div>';
  return $element;
}