function EntityReference::alternateWidgetsDefaultNormalize

Normalize values for widget switching.

The saved values can differ in live preview if switching back and forth between the select and autocomplete widgets. This normalizes the values to avoid errors when making the switch.

Parameters

array $form: Associative array containing the structure of the form, passed by reference.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

File

core/modules/views/src/Plugin/views/filter/EntityReference.php, line 388

Class

EntityReference

Filters a view by entity references.

Namespace

Code

protected function alternateWidgetsDefaultNormalize(array &$form, FormStateInterface $form_state) : void {
    $field_id = '_' . $this->getFieldDefinition()
        ->getName() . '-widget';
    $form[$field_id] = [
        '#type' => 'hidden',
        '#value' => $this->options['widget'],
    ];
    $previous_widget = $form_state->getUserInput()[$field_id] ?? NULL;
    if ($previous_widget && $previous_widget !== $this->options['widget']) {
        $form['value']['#value_callback'] = function ($element) {
            return $element['#default_value'] ?? '';
        };
    }
}