[Validator] Allow DateTime objects as valid Dates

PHP doesn't provide any built-in class for date representation so we're often using DateTime object with time set to '00:00:00'.
symfony · Crozin · Feb 22, 2011 · Feb 22, 2011 · fe7f51ff8a1f53dcf76d0f492a0327c80b85f56e
commit fe7f51ff8a1f53dcf76d0f492a0327c80b85f56e
diff --git a/src/Symfony/Component/Validator/Constraints/DateValidator.php b/src/Symfony/Component/Validator/Constraints/DateValidator.php
@@ -25,6 +25,10 @@ public function isValid($value, Constraint $constraint)
             return true;
         }
 
+        if ($value instanceof \DateTime) {
+            return true;
+        }
+
         if (!is_scalar($value) && !(is_object($value) && method_exists($value, '__toString()'))) {
             throw new UnexpectedTypeException($value, 'string');
         }

diff --git a/tests/Symfony/Tests/Component/Validator/Constraints/DateValidatorTest.php b/tests/Symfony/Tests/Component/Validator/Constraints/DateValidatorTest.php
@@ -54,6 +54,7 @@ public function getValidDates()
             array('2010-01-01'),
             array('1955-12-12'),
             array('2030-05-31'),
+            array(new \DateTime('2010-01-01')),
         );
     }