Hootlex\Friendships\Models\Friendship::scopeBetweenModels PHP Method

    public function scopeBetweenModels($query, $sender, $recipient)
    {
        $query->where(function ($queryIn) use($sender, $recipient) {
            $queryIn->where(function ($q) use($sender, $recipient) {
                $q->whereSender($sender)->whereRecipient($recipient);
            })->orWhere(function ($q) use($sender, $recipient) {
                $q->whereSender($recipient)->whereRecipient($sender);
            });
        });
    }