public static function PluginBase::preRenderAddFieldsetMarkup in Drupal 9

Same name and namespace in other branches

1. 8 core/modules/views/src/Plugin/views/PluginBase.php \Drupal\views\Plugin\views\PluginBase::preRenderAddFieldsetMarkup()
2. 10 core/modules/views/src/Plugin/views/PluginBase.php \Drupal\views\Plugin\views\PluginBase::preRenderAddFieldsetMarkup()

Moves form elements into fieldsets for presentation purposes.

Many views forms use #tree = TRUE to keep their values in a hierarchy for easier storage. Moving the form elements into fieldsets during form building would break up that hierarchy. Therefore, we wait until the pre_render stage, where any changes we make affect presentation only and aren't reflected in $form_state->getValues().

Parameters

array $form: The form build array to alter.

Return value

array The form build array.

Overrides ViewsPluginInterface::preRenderAddFieldsetMarkup

File

core/modules/views/src/Plugin/views/PluginBase.php, line 484

Class

PluginBase

Base class for any views plugin types.

Namespace

Drupal\views\Plugin\views

Code

public static function preRenderAddFieldsetMarkup(array $form) {
  foreach (Element::children($form) as $key) {
    $element = $form[$key];

    // In our form builder functions, we added an arbitrary #fieldset property
    // to any element that belongs in a fieldset. If this form element has
    // that property, move it into its fieldset.
    if (isset($element['#fieldset']) && isset($form[$element['#fieldset']])) {
      $form[$element['#fieldset']][$key] = $element;

      // Remove the original element this duplicates.
      unset($form[$key]);
    }
  }
  return $form;
}