Cambio en el if

Controller/RESTController.php

@@ -335,10 +335,10 @@ abstract class RESTController extends VoryxController
     public function getAction($entity)
     {
         try {
-            if (is_string($entity)) {
-                $entity = $this->getObjectFindById(null, $entity);
-            } else {
+            if (is_object($entity)) {
                 $entity = $this->getObjectFindById($entity, $entity->getId());
+            } else {
+                $entity = $this->getObjectFindById(null, $entity);
             }
             return $entity;
         } catch (\Exception $e) {