From 60bb8f028731e581fe5803cd0dc572807053a59a Mon Sep 17 00:00:00 2001
From: Victor Bjelkholm <victor@bjelkholm.com>
Date: Mon, 14 Jul 2014 19:35:35 +0200
Subject: [PATCH 1/3] Add instanceOf to rules in readme.md

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index d3be105..f7eefc0 100644
--- a/README.md
+++ b/README.md
@@ -114,6 +114,7 @@ V::lang('ar');
  * `dateAfter` - Field is a valid date and is after the given date
  * `contains` - Field is a string and contains the given string
  * `creditCard` - Field is a valid credit card number
+ * `instanceOf` - Field contains an instance of the given class
 
 **NOTE**: If you are comparing floating-point numbers with min/max validators, you
 should install the [BCMath](http://us3.php.net/manual/en/book.bc.php)

From 6f5dad874588d41849176d31731be13ab1d15258 Mon Sep 17 00:00:00 2001
From: Victor Bjelkholm <victor@bjelkholm.com>
Date: Mon, 14 Jul 2014 23:27:57 +0200
Subject: [PATCH 2/3] Update en.php to include instanceOf

---
 lang/en.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lang/en.php b/lang/en.php
index 60cb8c6..947ab56 100644
--- a/lang/en.php
+++ b/lang/en.php
@@ -29,5 +29,6 @@ return array(
     'lengthBetween' => "must be between %d and %d characters",
     'creditCard'    => "must be a valid credit card number",
     "lengthMin"     => "must contain greater than %d characters",
-    "lengthMax"     => "must contain less than %d characters"
+    "lengthMax"     => "must contain less than %d characters",
+    "instanceOf"    => "must be an instance of '%s'"
 );

From 9d90b08813ebaf29adcaee42531f6ef10b703578 Mon Sep 17 00:00:00 2001
From: Victor Bjelkholm <victor@bjelkholm.com>
Date: Tue, 29 Jul 2014 16:39:14 +0200
Subject: [PATCH 3/3] Show instance name in instanceOf error message

---
 src/Valitron/Validator.php      |  4 ++++
 tests/Valitron/ValidateTest.php | 13 +++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/src/Valitron/Validator.php b/src/Valitron/Validator.php
index 0a96bf2..8709fc9 100644
--- a/src/Valitron/Validator.php
+++ b/src/Valitron/Validator.php
@@ -736,6 +736,10 @@ class Validator
             }
             if ($param instanceof \DateTime) {
                 $param = $param->format('Y-m-d');
+            } else {
+                if(is_object($param)) {
+                    $param = get_class($param);
+                }
             }
             // Use custom label instead of field name if set
             if(is_string($params[0])) {
diff --git a/tests/Valitron/ValidateTest.php b/tests/Valitron/ValidateTest.php
index d1ae011..0a71b18 100644
--- a/tests/Valitron/ValidateTest.php
+++ b/tests/Valitron/ValidateTest.php
@@ -829,6 +829,19 @@ class ValidateTest extends BaseTestCase
       $this->assertTrue($v->validate());
     }
 
+    public function testInstanceOfErrorMessageShowsInstanceName()
+    {
+      $v = new Validator(array('attributeName' => new Validator(array())));
+      $v->rule('instanceOf', 'attributeName', new stdClass());
+      $v->validate();
+      $expected_error = array(
+        "attributeName" => array(
+          "AttributeName must be an instance of 'stdClass'"
+        )
+      );
+      $this->assertEquals($expected_error, $v->errors());
+    }
+
     public function testInstanceOfInvalidWithString()
     {
       $v = new Validator(array('attributeName' => new stdClass()));