- Bugfix within PdoObject and Repository

- Added some utilities methods to EntityCollection

src/EntityCollection.php

@@ -30,12 +30,14 @@ class EntityCollection extends \ArrayObject {
         return $collection;
     }
     
-    public function searchOne($value, string $field) : object 
+    public function searchOne($value, string $field) : ? object 
     {
         # Returning first value only
         foreach($this->search($value, $field) as $item) {
             return $item;
         }
+        
+        return null;
     }
     
     public function search($value, string $field) : Generator