From ebcaba31b95eca9e3f3d519f3ad453ce2a244004 Mon Sep 17 00:00:00 2001
From: Mohamed Said <themsaid@gmail.com>
Date: Fri, 29 Apr 2016 08:08:21 +0000
Subject: [PATCH] fix #13314 by converting != <> wheres to is not null

---
 src/Illuminate/Database/Query/Builder.php   |  2 +-
 tests/Database/DatabaseQueryBuilderTest.php | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/Illuminate/Database/Query/Builder.php b/src/Illuminate/Database/Query/Builder.php
index c7160036e49a..567b78bff79a 100755
--- a/src/Illuminate/Database/Query/Builder.php
+++ b/src/Illuminate/Database/Query/Builder.php
@@ -589,7 +589,7 @@ protected function invalidOperatorAndValue($operator, $value)
     {
         $isOperator = in_array($operator, $this->operators);
 
-        return $isOperator && $operator != '=' && is_null($value);
+        return $isOperator && ! in_array($operator, ['=', '<>', '!=']) && is_null($value);
     }
 
     /**
diff --git a/tests/Database/DatabaseQueryBuilderTest.php b/tests/Database/DatabaseQueryBuilderTest.php
index cc628799d1a9..b76df34f06a3 100755
--- a/tests/Database/DatabaseQueryBuilderTest.php
+++ b/tests/Database/DatabaseQueryBuilderTest.php
@@ -1273,11 +1273,23 @@ public function testMergeWheresCanMergeWheresAndBindings()
         $this->assertEquals(['foo', 'bar'], $builder->getBindings());
     }
 
-    public function testProvidingNullOrFalseAsSecondParameterBuildsCorrectly()
+    public function testProvidingNullWithOperatorsBuildsCorrectly()
     {
         $builder = $this->getBuilder();
         $builder->select('*')->from('users')->where('foo', null);
         $this->assertEquals('select * from "users" where "foo" is null', $builder->toSql());
+
+        $builder = $this->getBuilder();
+        $builder->select('*')->from('users')->where('foo', '=', null);
+        $this->assertEquals('select * from "users" where "foo" is null', $builder->toSql());
+
+        $builder = $this->getBuilder();
+        $builder->select('*')->from('users')->where('foo', '!=', null);
+        $this->assertEquals('select * from "users" where "foo" is not null', $builder->toSql());
+
+        $builder = $this->getBuilder();
+        $builder->select('*')->from('users')->where('foo', '<>', null);
+        $this->assertEquals('select * from "users" where "foo" is not null', $builder->toSql());
     }
 
     public function testDynamicWhere()