これまで個別コメントは次のようにルートの定義の中で取得していました．
routes/api.php （抜粋）Route::get('/comments/{id}', function (string $id) {
return new CommentResource(Comment::findOrFail($id));
});
もちろんこのままでも良いのですが，コメントに関するその他の機能はコントローラでまとめて取得や操作をしているので，個別コメントの取得に関する機能もコントローラに移行します．
まず，ルートの定義を次のように変更します．具体的には，コントローラを呼び出す定義（34行目）を追加し，不要になった箇所をコメントアウトするか削除します．
<?php
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
// use App\Http\Resources\CommentResource;
// use App\Http\Resources\CommentCollection;
// use App\Models\Comment;
use App\Http\Controllers\CommentController;
/*
|--------------------------------------------------------------------------
| API Routes
|--------------------------------------------------------------------------
|
| Here is where you can register API routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "api" middleware group. Make something great!
|
*/
Route::middleware('auth:sanctum')->get('/user', function (Request $request) {
return $request->user();
});
// Route::get('/comments/{id}', function (string $id) {
// return new CommentResource(Comment::findOrFail($id));
// });
// Route::get('/comments', function () {
// return new CommentCollection(Comment::get());
// });
Route::get('/comments', [CommentController::class, 'index']) -> name('comments.index');
Route::get('/comments/{comment_id}', [CommentController::class, 'show']) -> name('comments.show');
Route::post('/comments', [CommentController::class, 'store']) -> name('comments.store');
Route::put('/comments/{comment_id}', [CommentController::class, 'update']) -> name('comments.update');
Route::delete('/comments/{comment_id}', [CommentController::class, 'destroy']) -> name('comments.destroy');
次にコントローラに show 関数を作成します．これによりコメントの取得や操作に関する機能がコントローラに集約されました．
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Models\Comment;
use App\Http\Resources\CommentResource;
use App\Http\Resources\CommentCollection;
class CommentController extends Controller
{
public function index()
{
$comments = Comment::orderBy('updated_at','DESC')
->paginate(3);
return new CommentCollection($comments);
}
public function show($comment_id)
{
$comment = Comment::findOrFail($comment_id);
return new CommentResource($comment);
}
public function store(Request $request)
{
$comment = new Comment();
$comment->title = $request->title;
$comment->body = $request->body;
$comment->save();
return new CommentResource($comment);
}
public function update(Request $request, $comment_id)
{
$comment = Comment::findOrFail($comment_id);
$comment->title = $request->title;
$comment->body = $request->body;
$comment->save();
return new CommentResource($comment);
}
public function destroy(Request $request, $comment_id)
{
$comment = Comment::findOrFail($comment_id);
$comment->delete();
return response()->json();
// return new CommentResource($comment);
}
}
これまで通り個別のコメントを curl コマンドで取得できることを確認しておきます．
C:\Users\Rinsaka>curl http://192.168.56.101:8000/api/comments/1/ ⏎ {"comment":{"id":1,"title":"最初のコメント","body":"最初のコメントです！","updated_at":"2023-10-02T10:10:10.000000Z"}} C:\Users\Rinsaka>curl http://192.168.56.101:8000/api/comments/100/ ⏎ {"comment":{"id":100,"title":"三宅 結衣","body":"4508690 東京都高橋市西区加納町山口5-5-7 \/ shuhei92@example.org","updated_at":"2023-11-07T22:56:49.000000Z"}} C:\Users\Rinsaka>