Fixed return value in isValid methods.

Author: Benjamin Laugueux

cookbook/validation/custom_constraint.rst

@@ -61,13 +61,13 @@ Furthering our example, take a look at the ``ProtocolValidator`` as an example:
     {
         public function isValid($value, Constraint $constraint)
         {
-            if (in_array($value, $constraint->protocols)) {
+            if (!in_array($value, $constraint->protocols)) {
                 $this->setMessage($constraint->message, array('%protocols%' => $constraint->protocols));
 
-                return true;
+                return false;
             }
 
-            return false;
+            return true;
         }
     }
 
@@ -145,10 +145,10 @@ With this, the validator ``isValid()`` method gets an object as its first argume
                 // bind error message on foo property
                 $this->context->addViolationAtSubPath('foo', $constraint->getMessage(), array(), null);
 
-                return true;
+                return false;
             }
 
-            return false;
+            return true;
         }
     }