Laravel まとめ5(記事削除)

記事削除まで

(#22,#23)
http://dotinstall.com/lessons/basic_laravel/36122

• 投稿リストに削除リンクをつける。
• 削除リンクをクリックしたら、フォームが送信されてdeleteメソッドが呼ばれる

/myblog/app/Http/routes.php

<?php

    Route::get('/', 'PostsController@index');
    Route::get('/posts/create', 'PostsController@create');
    Route::get('/posts/{id}', 'PostsController@show');
    Route::get('/posts/{id}/edit', 'PostsController@edit');
    Route::post('/posts', 'PostsController@store');
    Route::patch('/posts/{id}', 'PostsController@update');
    Route::delete('/posts/{id}', 'PostsController@destroy');

    Route::post('/posts/{post}/comments', 'CommentsController@store');
    Route::delete('/posts/{post}/comments/{comment}', 'CommentsController@destroy');

• deleteを追加

Controller

/myblog/app/Http/Controllers/PostsController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;
use App\Http\Controllers\Controller;
use App\Post;
use App\Http\Requests\PostRequest;

class PostsController extends Controller
{
    public function index() {
      $posts = Post::latest('created_at')->get();
      return view('posts.index')->with('posts', $posts);
    }

    public function show($id) {
      $post = Post::findOrFail($id);
      return view('posts.show')->with('post', $post);
    }

    public function edit($id) {
      $post = Post::findOrFail($id);
      return view('posts.edit')->with('post', $post);
    }

    public function destroy($id) {
      $post = Post::findOrFail($id);
      $post->delete();
      return redirect('/')->with('flash_message', 'Post Deleted!');
    }

    public function create() {
      return view('posts.create');
    }

    public function store(PostRequest $request) {
      $post = new Post();
      $post->title = $request->title;
      $post->body = $request->body;
      $post->save();
      return redirect('/')->with('flash_message', 'Post Added!');
    }

    public function update(PostRequest $request, $id) {
      $post = Post::findOrFail($id);
      $post->title = $request->title;
      $post->body = $request->body;
      $post->save();
      return redirect('/')->with('flash_message', 'Post Updated!');
    }

}

• destroyメソッドを追加

/myblog/resources/views/posts/index.blade.php

@extends('layouts.default')
@section('title', 'Blog Posts')
@section('content')

<h1>
  <a href="{{ url('/posts/create') }}" class="pull-right fs12">Add New</a>
  Posts
</h1>
<ul>
  @forelse ($posts as $post)
  <li>
    <a href="{{ action('PostsController@show', $post->id) }}">{{ $post->title }}</a>
    <a href="{{ action('PostsController@edit', $post->id) }}" class="fs12">[Edit]</a>

//フォームの追加

    <form action="{{ action('PostsController@destroy', $post->id) }}" id="form_{{ $post->id }}" method="post" style="display:inline">
    {{ csrf_field() }}
    {{ method_field('delete') }}
      <a href="#" data-id="{{ $post->id }}" onclick="deletePost(this);" class="fs12">[x]</a>
    </form>


  </li>
  @empty
  <li>No posts yet</li>
  @endforelse
</ul>

//idをsubmitする
<script>
function deletePost(e) {
  'use strict';

  if (confirm('are you sure?')) {
    document.getElementById('form_' + e.dataset.id).submit();
  }
}
</script>
@endsection

• dataに付いているidは、「e.dataset.id」で取る

表示