From 57b233d3dce17c38e062fd5327919fbf1f88f017 Mon Sep 17 00:00:00 2001
From: guidocella <guidocella91@gmail.com>
Date: Tue, 28 Feb 2017 09:10:53 +0100
Subject: [PATCH] Add whereNotIn to Collection

---
 src/Illuminate/Support/Collection.php   | 31 +++++++++++++++++++++++--
 tests/Support/SupportCollectionTest.php | 12 ++++++++++
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/src/Illuminate/Support/Collection.php b/src/Illuminate/Support/Collection.php
index e5e94bf73e22..8f33f52048ad 100644
--- a/src/Illuminate/Support/Collection.php
+++ b/src/Illuminate/Support/Collection.php
@@ -393,13 +393,16 @@ public function whereStrict($key, $value)
      * @param  string  $key
      * @param  mixed  $values
      * @param  bool  $strict
+     * @param  bool  $not
      * @return static
      */
-    public function whereIn($key, $values, $strict = false)
+    public function whereIn($key, $values, $strict = false, $not = false)
     {
+        $method = $not ? 'reject' : 'filter';
+
         $values = $this->getArrayableItems($values);
 
-        return $this->filter(function ($item) use ($key, $values, $strict) {
+        return $this->$method(function ($item) use ($key, $values, $strict) {
             return in_array(data_get($item, $key), $values, $strict);
         });
     }
@@ -416,6 +419,30 @@ public function whereInStrict($key, $values)
         return $this->whereIn($key, $values, true);
     }
 
+    /**
+     * Filter items by the given key value pair.
+     *
+     * @param  string  $key
+     * @param  mixed  $values
+     * @return static
+     */
+    public function whereNotIn($key, $values)
+    {
+        return $this->whereIn($key, $values, false, true);
+    }
+
+    /**
+     * 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 $this->whereIn($key, $values, true, true);
+    }
+
     /**
      * Get the first item from the collection.
      *
diff --git a/tests/Support/SupportCollectionTest.php b/tests/Support/SupportCollectionTest.php
index f0ab3ac1dcf3..29ac7613286a 100755
--- a/tests/Support/SupportCollectionTest.php
+++ b/tests/Support/SupportCollectionTest.php
@@ -396,6 +396,18 @@ 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']]);