update

public function update(UpdateBlogPostRequest $request, Post $post) {
        //update post
        DB::table('posts')
                ->where('id', $post->id)
                ->update([
                    'title' => $request->input('title'),
                    'description' => $request->input('description'),
                    'content' => $request->input('content')]
                    );

        //redirect user or show message
    }