I've manipulated the edit node form via hook_form_BASE_FORM_ID_alter() to insert a select pull-down menu.

In my module, I've implemented hook_entity_update() to fire when the edit node form is submitted. How do you get the form_state in hook_entity_update()? I want to save the user's choice from the select pull-down.

1 Answer 1


$form_state is not available there.

You might want to consider using fields and widgets, then you get a lot for free.

If that's not an option then you can register a so called #entity_builder:

function menu_ui_form_node_type_form_alter(&$form, FormStateInterface $form_state) {
  // ...
  $form['#entity_builders'][] = 'menu_ui_form_node_type_form_builder';

function menu_ui_form_node_type_form_builder($entity_type, NodeTypeInterface $type, &$form, FormStateInterface $form_state) {
  $type->setThirdPartySetting('menu_ui', 'available_menus', array_values(array_filter($form_state->getValue('menu_options'))));
  $type->setThirdPartySetting('menu_ui', 'parent', $form_state->getValue('menu_parent'));

The example is for the node type config entity, but it should work pretty much the same way for a content entity. book_form_node_form_alter() is an example for nodes.

  • Thanks for your answer. I've set up some code similar to what you described found in Drupal 8 core->menu_ui.module. If I understand it correctly, you insert a 'submit' type in the associative array and point it to a function that will have the form_state object. Thanks again.
    – jbhovik
    Jun 30, 2015 at 21:37

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