public static function ViewsSelection::settingsFormValidate in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/views/src/Plugin/EntityReferenceSelection/ViewsSelection.php \Drupal\views\Plugin\EntityReferenceSelection\ViewsSelection::settingsFormValidate()

Element validate; Check View is valid.

File

core/modules/views/src/Plugin/EntityReferenceSelection/ViewsSelection.php, line 329

Class

ViewsSelection

Plugin implementation of the 'selection' entity_reference.

Namespace

Drupal\views\Plugin\EntityReferenceSelection

Code

public static function settingsFormValidate($element, FormStateInterface $form_state, $form) {

  // Split view name and display name from the 'view_and_display' value.
  if (!empty($element['view_and_display']['#value'])) {
    list($view, $display) = explode(':', $element['view_and_display']['#value']);
  }
  else {
    $form_state
      ->setError($element, t('The views entity selection mode requires a view.'));
    return;
  }

  // Explode the 'arguments' string into an actual array. Beware, explode()
  // turns an empty string into an array with one empty string. We'll need an
  // empty array instead.
  $arguments_string = trim($element['arguments']['#value']);
  if ($arguments_string === '') {
    $arguments = [];
  }
  else {

    // array_map() is called to trim whitespaces from the arguments.
    $arguments = array_map('trim', explode(',', $arguments_string));
  }
  $value = [
    'view_name' => $view,
    'display_name' => $display,
    'arguments' => $arguments,
  ];
  $form_state
    ->setValueForElement($element, $value);
}