Learner\Repositories\Eloquent\BlogRepository::update PHP Method

    public function update($id, array $data)
    {
        $blog = $this->findById($id);
        $blog->title = $data['title'];
        $blog->body = $data['body'];
        $blog->category_id = $data['category_id'];
        if (key_exists('created_at', $data)) {
            $blog->created_at = $data['created_at'];
        }
        $blog->save();
    }