Added Provider field to cases, auto-completed from actor linked to logged-in user. DB update required

modules/opencase_entities/opencase_entities.install

@@ -149,3 +149,17 @@ function opencase_entities_update_8003() {
   \Drupal::entityDefinitionUpdateManager()
     ->installFieldStorageDefinition('activity_date_time', 'oc_activity', 'oc_activity', $storage_definition);
 }
+
+
+function opencase_entities_update_90001() {
+  $storage_definition =  \Drupal\Core\Field\BaseFieldDefinition::create('entity_reference')
+      ->setLabel(t('Provider'))
+      ->setRevisionable(TRUE)
+      ->setSetting('target_type', 'oc_actor') 
+      ->setSetting('handler', 'default')
+      ->setDefaultValueCallback('\Drupal\opencase_entities\Entity\OCActivity::loggedInActorId')
+      ->setDisplayConfigurable('form', true)
+      ->setDisplayConfigurable('view', true);
+  \Drupal::entityDefinitionUpdateManager()
+    ->installFieldStorageDefinition('oc_provider', 'oc_activity', 'oc_activity', $storage_definition);
+}

modules/opencase_entities/src/Entity/OCActivity.php

@@ -93,6 +93,11 @@ class OCActivity extends RevisionableContentEntityBase implements OCActivityInte
     $formatted = $current_time->format('Y-m-d');
     return $formatted;
   }
+  public static function loggedInActorId() {
+    $linked_actor = \Drupal\user\Entity\User::load(\Drupal::currentUser()->id())->field_linked_opencase_actor;
+    if (empty($linked_actor)) return []; 
+    else return $linked_actor->target_id ;
+  }
   /**
    * {@inheritdoc}
    */
@@ -231,6 +236,14 @@ class OCActivity extends RevisionableContentEntityBase implements OCActivityInte
       ->setSettings([
           'datetime_type' => 'date'
        ]);
+    $fields['oc_provider'] = BaseFieldDefinition::create('entity_reference')
+    ->setLabel(t('Provider'))
+    ->setRevisionable(TRUE)
+    ->setSetting('target_type', 'oc_actor')
+    ->setSetting('handler', 'default')
+    ->setDefaultValueCallback('\Drupal\opencase_entities\Entity\OCActivity::loggedInActorId')
+    ->setDisplayConfigurable('form', true)
+    ->setDisplayConfigurable('view', true);
  
     $fields['status'] = BaseFieldDefinition::create('boolean')
       ->setLabel(t('Visible'))