From 4d4040b601b9e5eb469af8c221c372abd8e9948a Mon Sep 17 00:00:00 2001
From: Guido Cella <guidocella91@gmail.com>
Date: Wed, 1 Mar 2017 15:39:45 +0100
Subject: [PATCH] Add whereNotIn() to Collection (#18157)

---
 src/Illuminate/Support/Collection.php   | 29 +++++++++++++++++++++++++
 tests/Support/SupportCollectionTest.php | 12 ++++++++++
 2 files changed, 41 insertions(+)

diff --git a/src/Illuminate/Support/Collection.php b/src/Illuminate/Support/Collection.php
index 0eef56bede69..f403da1313e2 100644
--- a/src/Illuminate/Support/Collection.php
+++ b/src/Illuminate/Support/Collection.php
@@ -416,6 +416,35 @@ public function whereInStrict($key, $values)
         return $this->whereIn($key, $values, true);
     }
 
+    /**
+     * Filter items by the given key value pair.
+     *
+     * @param  string  $key
+     * @param  mixed  $values
+     * @param  bool  $strict
+     * @return static
+     */
+    public function whereNotIn($key, $values, $strict = false)
+    {
+        $values = $this->getArrayableItems($values);
+
+        return $this->reject(function ($item) use ($key, $values, $strict) {
+            return in_array(data_get($item, $key), $values, $strict);
+        });
+    }
+
+    /**
+     * Filter items by the given key value pair using strict comparison.
+     *
+     * @param  string  $key
+     * @param  mixed  $values
+     * @return static
+     */
+    public function whereNotInStrict($key, $values)
+    {
+        return $this->whereNotIn($key, $values, true);
+    }
+
     /**
      * Get the first item from the collection.
      *
diff --git a/tests/Support/SupportCollectionTest.php b/tests/Support/SupportCollectionTest.php
index a99d2b1477a9..dba37e491ede 100755
--- a/tests/Support/SupportCollectionTest.php
+++ b/tests/Support/SupportCollectionTest.php
@@ -397,6 +397,18 @@ public function testWhereInStrict()
         $this->assertEquals([['v' => 1], ['v' => 3]], $c->whereInStrict('v', [1, 3])->values()->all());
     }
 
+    public function testWhereNotIn()
+    {
+        $c = new Collection([['v' => 1], ['v' => 2], ['v' => 3], ['v' => '3'], ['v' => 4]]);
+        $this->assertEquals([['v' => 2], ['v' => 4]], $c->whereNotIn('v', [1, 3])->values()->all());
+    }
+
+    public function testWhereNotInStrict()
+    {
+        $c = new Collection([['v' => 1], ['v' => 2], ['v' => 3], ['v' => '3'], ['v' => 4]]);
+        $this->assertEquals([['v' => 2], ['v' => '3'], ['v' => 4]], $c->whereNotInStrict('v', [1, 3])->values()->all());
+    }
+
     public function testValues()
     {
         $c = new Collection([['id' => 1, 'name' => 'Hello'], ['id' => 2, 'name' => 'World']]);