VACMS-17177: Shows descriptions for vet center services on node view/edit

docroot/modules/custom/va_gov_facilities/src/EventSubscriber/FacilitiesSubscriber.php

@@ -10,12 +10,14 @@
 use Drupal\Core\Entity\EntityTypeManager;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Messenger\MessengerInterface;
+use Drupal\Core\Render\RendererInterface;
 use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\StringTranslation\StringTranslationTrait;
 use Drupal\Core\StringTranslation\TranslationInterface;
 use Drupal\core_event_dispatcher\EntityHookEvents;
 use Drupal\core_event_dispatcher\Event\Entity\EntityPresaveEvent;
 use Drupal\core_event_dispatcher\Event\Entity\EntityUpdateEvent;
+use Drupal\core_event_dispatcher\Event\Entity\EntityViewAlterEvent;
 use Drupal\core_event_dispatcher\Event\Form\FormAlterEvent;
 use Drupal\core_event_dispatcher\Event\Form\FormIdAlterEvent;
 use Drupal\core_event_dispatcher\FormHookEvents;
@@ -69,6 +71,14 @@ class FacilitiesSubscriber implements EventSubscriberInterface {
    */
   protected $userPermsService;
 
+  /**
+   * The renderer service.
+   *
+   * @var \Drupal\Core\Render\RendererInterface
+   *  The renderer.
+   */
+  private $renderer;
+
   /**
    * Constructs the EventSubscriber object.
    *
@@ -84,21 +94,25 @@ class FacilitiesSubscriber implements EventSubscriberInterface {
    *   The string translation service.
    * @param \Drupal\va_gov_user\Service\UserPermsService $user_perms_service
    *   The user perms service.
+   * @param \Drupal\Core\Render\RendererInterface $renderer
+   *   The renderer service.
    */
   public function __construct(
     AccountInterface $currentUser,
     EntityFieldManager $entity_field_manager,
     EntityTypeManager $entityTypeManager,
     MessengerInterface $messenger,
     TranslationInterface $string_translation,
-    UserPermsService $user_perms_service
+    UserPermsService $user_perms_service,
+    RendererInterface $renderer
   ) {
     $this->currentUser = $currentUser;
     $this->entityTypeManager = $entityTypeManager;
     $this->entityFieldManager = $entity_field_manager;
     $this->messenger = $messenger;
     $this->stringTranslation = $string_translation;
     $this->userPermsService = $user_perms_service;
+    $this->renderer = $renderer;
   }
 
   /**
@@ -112,13 +126,58 @@ public static function getSubscribedEvents(): array {
       'hook_event_dispatcher.form_node_vet_center_form.alter' => 'alterVetCenterNodeForm',
       'hook_event_dispatcher.form_node_vba_facility_service_edit_form.alter' => 'alterVbaFacilityServiceNodeForm',
       'hook_event_dispatcher.form_node_vba_facility_service_form.alter' => 'alterVbaFacilityServiceNodeForm',
+      'hook_event_dispatcher.form_node_vet_center_facility_health_servi_edit_form.alter' => 'alterVetCenterServiceNodeForm',
       EntityHookEvents::ENTITY_PRE_SAVE => 'entityPresave',
       EntityHookEvents::ENTITY_UPDATE => 'entityUpdate',
+      EntityHookEvents::ENTITY_VIEW_ALTER => 'entityViewAlter',
       FieldHookEvents::WIDGET_COMPLETE_FORM_ALTER => 'widgetCompleteFormAlter',
       FormHookEvents::FORM_ALTER => 'formAlter',
     ];
   }
 
+  /**
+   * Alteration to entity view pages.
+   *
+   * @param \Drupal\core_event_dispatcher\Event\Entity\EntityViewAlterEvent $event
+   *   The entity view alter service.
+   */
+  public function entityViewAlter(EntityViewAlterEvent $event):void {
+    $this->appendServiceDescriptionToVetCenterFacilityService($event);
+  }
+
+  /**
+   * Appends Vet Center facility service description to it's title on node:view.
+   *
+   * @param \Drupal\core_event_dispatcher\Event\Entity\EntityViewAlterEvent $event
+   *   The entity view alter service.
+   */
+  public function appendServiceDescriptionToVetCenterFacilityService(EntityViewAlterEvent $event):void {
+    if (($event->getDisplay()->getTargetBundle() !== 'vet_center_facility_health_servi')
+    || ($event->getDisplay()->getOriginalMode() !== 'full')) {
+      return;
+    }
+    $build = &$event->getBuild();
+    $service_node = $event->getEntity();
+    $referenced_terms = $service_node->get('field_service_name_and_descripti')->referencedEntities();
+    // Render the national service term description (if available).
+    if (!empty($referenced_terms)) {
+      $description = "";
+      $referenced_term = reset($referenced_terms);
+      if ($referenced_term) {
+        $view_builder = $this->entityTypeManager->getViewBuilder('taxonomy_term');
+        $referenced_term_content = $view_builder->view($referenced_term, 'vet_center_service');
+        $description = $this->renderer->renderRoot($referenced_term_content);
+      }
+    }
+    else {
+      $description = new FormattableMarkup(
+        '<div><strong>Notice: The national service description was not found.</strong></div>',
+        []);
+    }
+    $formatted_markup = new FormattableMarkup($description, []);
+    $build['field_service_name_and_descripti']['#suffix'] = $formatted_markup;
+  }
+
   /**
    * Creates custom render array from field on referenced entity.
    *
@@ -444,6 +503,16 @@ public function alterVbaFacilityServiceNodeForm(FormIdAlterEvent $event): void {
     $this->buildHealthServicesDescriptionArrayAddToSettings($event);
   }
 
+  /**
+   * Alterations to the Vet Center facility service node form.
+   *
+   * @param \Drupal\core_event_dispatcher\Event\Form\FormIdAlterEvent $event
+   *   The event.
+   */
+  public function alterVetCenterServiceNodeForm(FormIdAlterEvent $event): void {
+    $this->buildHealthServicesDescriptionArrayAddToSettings($event);
+  }
+
   /**
    * Builds an array of descriptions from health services available on form.
    *
@@ -552,6 +621,7 @@ public function getVaServicesTaxonomyFieldNames(string $node_type) : array {
         ];
         break;
 
+      case 'vet_center_facility_health_servi':
       case 'vet_center':
         $vaServicesFields = [
           'type' => 'field_vet_center_type_of_care',

docroot/modules/custom/va_gov_facilities/va_gov_facilities.services.yml

@@ -8,5 +8,6 @@ services:
       - '@messenger'
       - '@string_translation'
       - '@va_gov_user.user_perms'
+      - '@renderer'
     tags:
       - { name: event_subscriber }