12.02.2026 | Pascal Crott

Dynamically remove entity_reference value from views exposed filter via flag

my_module.module

<?php

use Drupal\Component\Utility\Html;
use Drupal\Core\Form\FormStateInterface;


/**
 * Implements hook_form_FORM_ID_alter() for 'views_exposed_form'.
 */
function hook_form_views_exposed_form_alter(&$form, FormStateInterface $form_state) {
  // Configure the values to your needs.
  $view_name = 'my_view';
  $display_name = 'my_display';
  $entity_type_id = 'taxonomy_term';
  $reference_field = 'field_category';
  // The field on the referenced entity.
  $flag_on_reference_field = 'field_hide_on_exposed_form';

  if ($form['#id'] == Html::getId("views-exposed-form-{$view_name}-{$display_name}")) {
    $entity_storage = \Drupal::entityTypeManager()->getStorage($entity_type_id);
    $options = &$form[$reference_field]['#options'];
    foreach ($entity_storage->loadMultiple(array_keys($options)) as $id => $entity) {
      if ($entity->hasField($flag_on_reference_field) && !$entity->{$flag_on_reference_field}->isEmpty()) {
        unset($options[$id]);
      }
    }
  }
}

Issue:

A views filter based on taxonomy terms should not show all terms as filterable options, e.g. because they are internal

Solution:

Create a field on your taxonomy to determine whether it should be included in filters, then alter your form so it reacts to the field setting. You can copy-paste the code provided into your module.

module

views

exposed filters

copy-paste

potential module

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05.10.2026 | Lothar Ferreira Neumann

Replace Tagify CDN-loaded contrib library with a local npm asset in Drupal

install_libraries_locally.sh

composer require npm-asset/yaireo--tagify:4.35.4

my_module.module

/**
 * Implements hook_library_info_alter().
 *
 * The tagify module loads Tagify from cdnjs.cloudflare.com. Serve it from
 * npm-asset/yaireo--tagify in /libraries instead, so no request reaches a
 * third party and the widget keeps working behind restrictive firewalls.
 */
function my_module_library_info_alter(array &$libraries, string $extension): void {
  if ($extension !== 'tagify') {
    return;
  }

  // Assigning replaces the CDN entries. The npm package ships an unminified
  // UMD build and no *.min.css; Drupal aggregates them either way.
  $libraries['tagify']['js'] = [
    '/libraries/yaireo--tagify/dist/tagify.js' => ['minified' => FALSE],
  ];
  $libraries['tagify']['css']['component'] = [
    '/libraries/yaireo--tagify/dist/tagify.css' => ['minified' => FALSE],
  ];
  $libraries['tagify_polyfils']['js'] = [
    '/libraries/yaireo--tagify/dist/tagify.polyfills.min.js' => ['minified' => TRUE],
  ];

  unset($libraries['tagify']['remote'], $libraries['tagify_polyfils']['remote']);
}

module

CDN

asset injection

cloudflare

tagify

npm

08.10.2026 | Michael Ebert

Filter user entity reference field options to active users only

Option 1 (recommended): custom entity reference selection handler. Further options down below.

ActiveUserSelection.php

<?php

namespace Drupal\my_module\Plugin\EntityReferenceSelection;

use Drupal\Core\Entity\Plugin\EntityReferenceSelection\UserSelction;
use Drupal\Core\StringTranslation\TranslatableMarkup;

#[EntityReferenceSelection(
  id: "default:active_user",
  label: new TranslatableMarkup("User selection (only active users)"),
  entity_types: ["user"],
  group: "default",
  weight: 1
)]
class ActiveUserSelection extends UserSelection {

  /**
   * {@inheritdoc}
   */
  protected function buildEntityQuery($match = NULL, $match_operator = 'CONTAINS') {
    $query = parent::buildEntityQuery($match, $match_operator);
    $query->condition('status', 1);

    return $query;
  }

}

After implementing that plugin, you need to activate it on the entity form display for the field you want it.

module

user

backend

fields

data filtering

filters