public DraggableListBuilder::submitForm(array &$form, FormStateInterface $form_state)
Form submission handler.
array $form: An associative array containing the structure of the form.
\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.
Overrides FormInterface::submitForm
public function submitForm(array &$form, FormStateInterface $form_state) { foreach ($form_state->getValue($this->entitiesKey) as $id => $value) { if (isset($this->entities[$id]) && $this->entities[$id]->get($this->weightKey) != $value['weight']) { // Save entity only when its weight was changed. $this->entities[$id]->set($this->weightKey, $value['weight']); $this->entities[$id]->save(); } } }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Config!Entity!DraggableListBuilder.php/function/DraggableListBuilder::submitForm/8.1.x