function file_field_widget_process_multiple

An element #process callback for a group of file_generic 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.

File

modules/file/file.field.inc, line 695

Code

function file_field_widget_process_multiple($element, &$form_state, $form) {
    $element_children = element_children($element, TRUE);
    $count = count($element_children);
    foreach ($element_children as $delta => $key) {
        if ($key != $element['#file_upload_delta']) {
            $description = _file_field_get_description_from_element($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 upload 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;
}