Add method to get groups for a specific friend

README.md

@@ -217,6 +217,11 @@ $user->ungroupFriend($friend, 'family');
 $user->ungroupFriend($friend);
 ```
 
+#### Get groups for specific friend
+```php
+$user->getGroupsFor($friend);
+```
+
 #### Get the number of Friends in specific group
 ```php
 $user->getFriendsCount($group_name);

src/Traits/Friendable.php

@@ -353,6 +353,30 @@ public function getFriendsCount($group = '')
         return $friendsCount;
     }
 
+
+    /**
+     * Get groups for Friend
+     *
+     * @param Model $model
+     * @return array
+     */
+    public function getGroupsFor(Model $model) {
+
+        $result = [];
+        $friendship = $this->getFriendship($model);
+        if(!empty($friendship)) {
+            $groups = $friendship->groups()
+                ->where('friend_id', $model->getKey())
+                ->where('friend_type', $model->getMorphClass())
+                ->get();
+            if(false === $groups->isEmpty())
+                $result = $groups->pluck('group_slug')->all();
+        }
+
+        return $result;
+
+    }
+
     /**
      * @param Model $recipient
      *

tests/FriendshipsGroupsTest.php

@@ -241,5 +241,35 @@ public function it_returns_user_friends_by_group_per_page()
         $this->containsOnlyInstancesOf(\App\User::class, $sender->getFriends(0, 'acquaintances'));
     }
 
+    /** @test */
+    public function returns_groups_for_specific_friend() {
+
+        $sender           = createUser();
+        $recipients       = createUser([], 2);
+        $groupsAvailable  = config('friendships.groups', []);
+
+        foreach ($recipients as $recipient) {
+            $sender->befriend($recipient);
+            $recipient->acceptFriendRequest($sender);
+        }
+
+        $sender->groupFriend($recipients[0], 'acquaintances');
+        $sender->groupFriend($recipients[0], 'close_friends');
+
+        $sender->groupFriend($recipients[1], 'family');
+
+        $recipients[0]->groupFriend($sender, 'close_friends');
+
+        $rec1 = $sender->getGroupsFor($recipients[1]);
+
+        $this->assertCount(2, $sender->getGroupsFor($recipients[0]));
+        $this->assertCount(1, $recipients[0]->getGroupsFor($sender));
+        $this->assertCount(0, $recipients[1]->getGroupsFor($sender));
+
+        $this->assertInternalType('array', $rec1);
+        $this->assertContains($rec1[0], $groupsAvailable);
+
+    }
+
 
 }