- Refractored Date/time fields

- Added an implode function on EntityCollection

src/EntityTrait.php

@@ -110,6 +110,10 @@ trait EntityTrait {
                         $bridgeRelation = $bridgeEntity->searchFieldAnnotation($relation->field, new Relation() );
                         $relationRelation = $bridgeEntity->searchFieldAnnotation($relation->foreignField, new Relation() );
 
+                        if ($relationRelation === null) {
+                            throw new \Exception("@Relation annotation not found for field `{$relation->foreignField}` in entity {$relation->bridge}");
+                        }
+                        
                         $repository = $relationRelation->entity()->repository();
 
                         $bridgeAlias = uniqid("bridge_");