php_laravel_laracasts/app/Http/Controllers/CommentsController.php

<?php

namespace App\Http\Controllers;

use App\Comment;
use App\Post;
use Illuminate\Http\Request;

class CommentsController extends Controller
{

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function create()
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int $id
     *
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int $id
     *
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        //
    }

    /**
     * Display the specified resource.
     *
     * @param  int $id
     *
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request $request
     *
     * @return \Illuminate\Http\Response
     */
    public function store(Post $post, Request $request)
    {
        $this->validate($request, ['body' => 'required|min:2']);
        $post->addComment($request->get('body'));

        // return redirect("/posts/{$post->id}");
        return back();
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request $request
     * @param  int $id
     *
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

}