Add PlanRecordInterface::getPlan()

modules/core/plan/src/Access/PlanRecordAccess.php

@@ -18,10 +18,9 @@ class PlanRecordAccess extends EntityAccessControlHandler {
   protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
 
     // If a plan is referenced, access is based on access to the plan.
-    /** @var \Drupal\plan\Entity\PlanInterface[] $plans */
-    $plans = $entity->get('plan')->referencedEntities();
-    if (!empty($plans[0])) {
-      return AccessResult::allowedIf($plans[0]->access($operation, $account));
+    /** @var \Drupal\plan\Entity\PlanRecordInterface $plan */
+    if ($plan = $entity->getPlan()) {
+      return AccessResult::allowedIf($plan->access($operation, $account));
     }
 
     // Otherwise, delegate to the parent method.

modules/core/plan/src/Entity/PlanRecord.php

@@ -82,4 +82,11 @@ class PlanRecord extends ContentEntityBase implements PlanRecordInterface {
     return $fields;
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  public function getPlan(): ?PlanInterface {
+    return $this->get('plan')->first()?->entity;
+  }
+
 }

modules/core/plan/src/Entity/PlanRecordInterface.php

@@ -17,4 +17,12 @@ interface PlanRecordInterface extends ContentEntityInterface {
    */
   public function getBundleLabel();
 
+  /**
+   * Returns the Plan entity the plan record is assigned to.
+   *
+   * @return \Drupal\plan\Entity\PlanInterface|null
+   *   The plant entity or NULL if not assigned.
+   */
+  public function getPlan(): ?PlanInterface;
+
 }