public static function WebformTableSort::preRenderWebformTableSort in Webform 6.x

Same name and namespace in other branches

1. 8.5 src/Element/WebformTableSort.php \Drupal\webform\Element\WebformTableSort::preRenderWebformTableSort()

Prepares a 'webform_table_sort' #type element for rendering.

Return value

array The processed element.

File

src/Element/WebformTableSort.php, line 78

Class

WebformTableSort

Provides a webform element for a sortable table element.

Namespace

Drupal\webform\Element

Code

public static function preRenderWebformTableSort($element) {
  $rows = [];
  $header = $element['#header'];
  if (!empty($element['#options'])) {

    // Generate a table row for each selectable item in #options.
    foreach (Element::children($element) as $key) {
      $row = [];
      $row['data'] = [];

      // Set the row to be draggable.
      $row['class'] = [
        'draggable',
      ];
      if (isset($element['#options'][$key]['#attributes'])) {
        $row += $element['#options'][$key]['#attributes'];
      }

      // As table.html.twig only maps header and row columns by order, create
      // the correct order by iterating over the header fields.
      foreach ($element['#header'] as $fieldname => $title) {

        // A row cell can span over multiple headers, which means less row
        // cells than headers could be present.
        if (isset($element['#options'][$key][$fieldname])) {

          // A header can span over multiple cells and in this case the cells
          // are passed in an array. The order of this array determines the
          // order in which they are added.
          if (is_array($element['#options'][$key][$fieldname]) && !isset($element['#options'][$key][$fieldname]['data'])) {
            foreach ($element['#options'][$key][$fieldname] as $cell) {
              $row['data'][] = $cell;
            }
          }
          else {
            $row['data'][] = $element['#options'][$key][$fieldname];
          }
        }
      }

      // Render the weight and hidden value element.
      $weight = [
        $element[$key]['weight'],
        $element[$key]['value'],
      ];
      $row['data'][] = \Drupal::service('renderer')
        ->render($weight);
      $rows[] = $row;
    }
  }

  // Append weight to header.
  $header[] = t('Weight');

  // Set header and rows.
  $element['#header'] = $header;
  $element['#rows'] = $rows;

  // Attach table sort.
  $element['#attributes']['class'][] = 'js-table-sort';
  $element['#attributes']['class'][] = 'table-sort';
  return $element;
}