Contrib.social

FieldHookEvents::WIDGET_SINGLE_ELEMENT_FORM_ALTER not found

Open on Drupal.org →
Created on 31 October 2022, about 2 years ago
Updated 28 December 2023, 11 months ago

Problem/Motivation

I've attempted to replicate the hook hook_field_widget_form_alter() by using the event FieldHookEvents::WIDGET_SINGLE_ELEMENT_FORM_ALTER.

The relevant part of my code looks like this:

use Drupal\field_event_dispatcher\FieldHookEvents;
use Drupal\core_event_dispatcher\FormHookEvents;

class MyModuleFormEventSubscriber implements EventSubscriberInterface {
  public static function getSubscribedEvents() {
    return [
      FieldHookEvents::WIDGET_SINGLE_ELEMENT_FORM_ALTER => 'fieldWidgetFormAlter',
      FormHookEvents::FORM_ALTER => 'formAlter',
    ];
  }
}

Upon clearing caches I get this error:

Fatal error: Uncaught Error: Class "Drupal\field_event_dispatcher\FieldHookEvents" not found in /var/www/docroot/modules/custom/my_module/src/EventSubscriber/MyModuleFormEventSubscriber.php:24

If I comment out FieldHookEvents::WIDGET_SINGLE_ELEMENT_FORM_ALTER => 'fieldWidgetFormAlter',, FormHookEvents::FORM_ALTER => 'formAlter' works fine, so I don't think this is a problem with my implementation.

Steps to reproduce

Try to use the FieldHookEvents::WIDGET_SINGLE_ELEMENT_FORM_ALTER event.

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes

🐛 Bug report
Status

Closed: works as designed

Version

3.3

Component

Code

Created by

🇺🇸United States maskedjellybean Portland, OR

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