Fixed use with value annotations.

Author: Daniel Berthereau

Module.php

@@ -157,6 +157,12 @@ public function repValueHtml($event)
             $target = $event->getTarget();
         }
 
+        // Value annotation are currently not managed.
+        $resource = $target->resource();
+        if (!$resource) {
+            return;
+        }
+
         $controllerName = $target->resource()->getControllerName();
         if (!$controllerName) {
             return;
@@ -244,10 +250,10 @@ public function repValueHtml($event)
                         $isLiteral = true;
                         break;
                     default:
-                        $resource = $target->valueResource();
+                        $valueResource = $target->valueResource();
                         $uri = $target->uri();
-                        if ($resource) {
-                            $searchTarget = $target->valueResource()->id();
+                        if ($valueResource) {
+                            $searchTarget = $valueResource->id();
                             $searchUrl = $this->resourceSearchUrl($url, $routeParams, $propertyId, $searchTarget);
                         } elseif ($uri) {
                             $searchUrl = $this->uriSearchUrl($url, $routeParams, $propertyId, $uri);