公司導入 Laravel 分享 - 13. 進階實作 - 文章留言

建立 Route (routes/web.php)

Route::resource('post.comment', 'PostCommentController');

建立 Model、Controller 和 Migration (artisan command)

php artisan make:model PostComment -m -r

撰寫資料庫 schema (database/migrations/2017_05_09_064131_create_post_comments_table.php)

public function up()
{
    Schema::create('post_comments', function (Blueprint $table) {
        $table->increments('id');
        $table->integer('post_id')->unsigned();
        $table->text('content');
        $table->timestamps();
    });
}

執行 migrate 建立資料表 (artisan command)

php artisan migrate

修改 PostComment model (app/PostComment.php)

class PostComment extends Model
{
    protected $fillable = ['content'];
}

修改 Post model (app/Post.php)

use App\PostComment;
...
public function comments()
{
    return $this->hasMany(PostComment::class);
}

新增留言的 view (resources/views/post/show.blade.php)

<div class="comment">
    <div class="comment-add">
        {!! Form::open(['route' => ['post.comment.store', $post->id]]) !!}
            <div class="form-group">
                {!! Form::label('content', '新增留言') !!}
                {!! Form::textarea('content', null, ['class' => 'form-control']) !!}
            </div>
            <div class="form-group">
                {!! Form::submit(null, ['class' => 'btn btn-primary btn-lg btn-block']) !!}
            </div>
        {!! Form::close() !!}
    </div>
</div>

新增留言的 store (app/Http/Controllers/PostCommentController.php)

public function store(Post $post, Request $request)
{
    $post->comments()->create($request->all());
 
    return redirect()->route('post.show', $post->id);
}

顯示留言的 view (resources/views/post/show.blade.php)

@foreach($post->comments as $index => $comment)
    <hr>
    <div class="comment-list">
        <div class="clearfix">
            #{{ $index + 1 }}
            <form class="pull-right" action="{{ route('post.comment.destroy', [$post->id, $comment->id]) }}" method="POST">
                {{ csrf_field() }}
                {{ method_field('DELETE') }}
                <input class="btn btn-danger" type="submit" name="submit" value="刪除">
            </form>
            <a class="pull-right btn btn-primary" href="{{ route('post.comment.edit', [$post->id, $comment->id]) }}">編輯</a>
        </div>
        <p>
            {{ $comment->content }}
        </p>
        <div class="text-right">
            {{ $comment->created_at }}
        </div>
    </div>
@endforeach

刪除 (app/Http/Controllers/PostCommentController.php)

public function destroy(Post $post, PostComment $comment)
{
    $comment->delete();
 
    return redirect()->route('post.show', $post->id);
}

編輯自己寫！