Added target field to activity

modules/opencase_entities/src/Entity/OCActivity.php

@@ -97,7 +97,14 @@ class OCActivity extends RevisionableContentEntityBase implements OCActivityInte
     $linked_actor = \Drupal\user\Entity\User::load(\Drupal::currentUser()->id())->field_linked_opencase_actor;
     if (empty($linked_actor)) return []; 
     else return $linked_actor->target_id ;
+
+  }  
+  
+  public static function defaultTarget() {
+    if (opencase_entities_get('target_id')) return [opencase_entities_get('target_id')];
+    else return [];
   }
+
   /**
    * {@inheritdoc}
    */
@@ -244,6 +251,16 @@ class OCActivity extends RevisionableContentEntityBase implements OCActivityInte
     ->setDefaultValueCallback('\Drupal\opencase_entities\Entity\OCActivity::loggedInActorId')
     ->setDisplayConfigurable('form', true)
     ->setDisplayConfigurable('view', true);
+
+
+    $fields['oc_target'] = BaseFieldDefinition::create('entity_reference')
+    ->setLabel(t('Target'))
+    ->setRevisionable(TRUE)
+    ->setSetting('target_type', 'oc_actor')
+    ->setSetting('handler', 'default')
+    ->setDefaultValueCallback('\Drupal\opencase_entities\Entity\OCActivity::defaultTarget')
+    ->setDisplayConfigurable('form', true)
+    ->setDisplayConfigurable('view', true);
  
     $fields['status'] = BaseFieldDefinition::create('boolean')
       ->setLabel(t('Visible'))
@@ -294,15 +311,8 @@ class OCActivity extends RevisionableContentEntityBase implements OCActivityInte
         'text_processing' => 0,
       ])
       ->setDefaultValue('')
-      ->setDisplayOptions('view', [
-        'label' => 'above',
-        'type' => 'basic_string',
-        'weight' => -1,
-      ])
-      ->setDisplayOptions('form', [
-        'type' => 'string_textarea',
-        'weight' => -1,
-      ])
+      ->setDisplayConfigurable('form', true)
+      ->setDisplayConfigurable('view', true)
       ->setRequired(FALSE);
 
     $fields['time_taken'] = BaseFieldDefinition::create('decimal')