diff --git a/dblayeroo.php b/dblayeroo.php
index 2a9c17d..11fd341 100644
--- a/dblayeroo.php
+++ b/dblayeroo.php
@@ -1313,6 +1313,7 @@ class dblayeroo
       $this->DBException (
         "Invalid object provided to setForeignObj (no table defined)");
     $this->setForeignObj[$object->tableprefix.$object->table] = $object;
+    return $this;
   }
   /* }}} */
 
@@ -2262,9 +2263,10 @@ class dblayeroo
     // - If foreign keys, check if the value is set in the constraint
     foreach ($this->foreign as $field=>$params)
     {
-      if (! array_key_exists ($field, $this->setValues))
-        $errors[$field] = dgettext ("domframework",
-         "The field '%s' must be test on foreign, but is not provided");
+      if (! array_key_exists ($field, $values))
+        $errors[$field] = sprintf (dgettext ("domframework",
+          "The field '%s' must be test on foreign, but is not provided"),
+          $field);
       if (! array_key_exists ($params[0], $this->setForeignObj))
         $this->DBException (dgettext ("domframework",
          "No foreign object configured to test the foreign key"));
@@ -2275,7 +2277,7 @@ class dblayeroo
       $objTmp->clearRequest ();
       $objTmp->Select ();
       $objTmp->displayAdd ($objTmp->primary);
-      $objTmp->whereAdd ($params[1], "=", $this->setValues[$field]);
+      $objTmp->whereAdd ($params[1], "=", $values[$field]);
       if (count ($objTmp->execute ()) === 0)
         $errors[$field] = sprintf (dgettext ("domframework",
          "The value of the foreign key '%s' doesn't exists in foreign table"),