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Laravelで簡単なCMSを作成(記事を更新)

Last updated at Posted at 2021-05-03

Laravelで簡単なCMSを作ってみます。

環境構築から記事の登録までは以下の記事を参考にどうぞ。

今回は記事の更新処理を処理を作ってみます。

Controllerを作成

ArticlesControllerにeditupdateメソッドを追加します。

app/Http/Controllers/ArticlesController.php
<?php

namespace App\Http\Controllers;

use App\Models\Article;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Gate;

class ArticlesController extends Controller
{
    // 記事の登録処理など

    public function edit(Article $article)
    {
        return view('articles.edit', ['article' => $article]);
    }

    public function update(Request $request, Article $article)
    {
        $article->fill($request->all())->save();
        return redirect('/articles');
    }
}

Viewを作成

更新ページを用意します。

resources/views/articles/edit.blade.php
<x-app-layout>
    <x-slot name="header">
        <h2 class="font-semibold text-xl text-gray-800 leading-tight">
            {{ __('Articles') }}
        </h2>
    </x-slot>

    <div class="py-12">
        <div class="max-w-7xl mx-auto sm:px-6 lg:px-8">
            <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg">
                <div class="p-6 bg-white border-b border-gray-200">

                    <form action="/article/update/{{$article->id}}" method="post">
                        @csrf
                        <div class="grid grid-cols-1 gap-6">
                            <label class="block">
                                <span class="text-gray-700">Title</span>
                                <input type="text" name="title" class="mt-1 block w-full" value="{{$article->title}}">
                            </label>
                            <label class="block">
                                <span class="text-gray-700">Body</span>
                                <textarea class="mt-1 block w-full" rows="3" name="body">{{$article->body}}</textarea>
                            </label>
                            <input type="submit" class="bg-blue-500 hover:bg-blue-700 text-white font-bold py-2 px-4 rounded focus:outline-none focus:shadow-outline" value="send">
                        </div>
                    </form>

                </div>
            </div>
        </div>
    </div>
</x-app-layout>

ルートを登録

routes/web.php
<?php

use Illuminate\Support\Facades\Route;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

Route::get('/', function () {
    return view('welcome');
});

Route::get('/dashboard', function () {
    return view('dashboard');
})->middleware(['auth'])->name('dashboard');


Route::get('/articles', 'App\Http\Controllers\ArticlesController@index');
Route::get('/article/add', 'App\Http\Controllers\ArticlesController@add');
Route::post('/article/add', 'App\Http\Controllers\ArticlesController@create');

// 更新ページへのルートを登録
Route::get('/article/edit/{article}', 'App\Http\Controllers\ArticlesController@edit');
Route::post('/article/update/{article}', 'App\Http\Controllers\ArticlesController@update');

require __DIR__.'/auth.php';

これで、記事の登録に加えて更新もできるようになりました。記事を更新するためには/article/edit/1のようにarticle_idをURIに含めてリクエストしてください。ルートモデル結合を利用しているので、リクエストされたarticle_idに一致するArticleモデルが生成されサービスコンテナを通じてArticlesControllereditメソッドに自動的に注入されます。

作成したリソースは以下になります。

メソッド URI アクション
GET /articles 一覧
GET /article/add 記事登録ページ表示
POST /article/add 記事登録
GET /article/edit/{article} 記事更新ページ表示
POST /article/edit/{article} 記事登録

作成した記事にタグを付ける機能を実装するには、下記の記事を参考に。

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