diff --git a/classes/DBConnector.class.php b/classes/DBConnector.class.php
index c26f3e8..51b5528 100644
--- a/classes/DBConnector.class.php
+++ b/classes/DBConnector.class.php
@@ -83,7 +83,7 @@ class DBConnector
         return mysqli_num_rows($result);
     }
 
-    static public function affectedRows($handler)
+    static public function affectedRows($handler, $result)
     {
         return mysqli_affected_rows($handler);
     }
diff --git a/classes/Model.class.php b/classes/Model.class.php
index eabd935..889e47c 100644
--- a/classes/Model.class.php
+++ b/classes/Model.class.php
@@ -61,9 +61,9 @@ abstract class Model
                 return new ModelSelectResult($res);
             case 'insert':
             case 'replac':
-                return new ModelInsertResult($this->handler);
+                return new ModelInsertResult($this->handler, $res); //$res for postgreSQL
             default:
-                return new ModelChangeResult($this->handler);
+                return new ModelChangeResult($this->handler, $res); //$res for postgreSQL
         }
     }
 
@@ -202,9 +202,9 @@ class ModelChangeResult extends ModelResult
 {
     public $affected;
 
-    function __construct($resource)
+    function __construct($resource, $result)
     {
-        $this->affected = DBConnector::affectedRows($resource);
+        $this->affected = DBConnector::affectedRows($resource, $result);
     }
 
     function count()
@@ -217,9 +217,9 @@ class ModelInsertResult extends ModelChangeResult
 {
     public $id;
 
-    function __construct($resource)
+    function __construct($resource, $result)
     {
-        parent::__construct($resource);
+        parent::__construct($resource, $result);
         $this->id = DBConnector::getId($resource);
     }
 
diff --git a/classes/pg_DBConnector.class.php b/classes/pg_DBConnector.class.php
index 2550de9..68335f1 100644
--- a/classes/pg_DBConnector.class.php
+++ b/classes/pg_DBConnector.class.php
@@ -82,9 +82,9 @@ class DBConnector
         return pg_num_rows($result);
     }
 
-    static public function affectedRows($handler)
+    static public function affectedRows($handler, $result)
     {
-        return pg_affected_rows($handler);
+        return pg_affected_rows($result);
     }
 
     static public function getId($handler)