为什么当我编辑并保存对一个帖子的更改时，所有其他帖子都进行相同的更改?我该如何解决?我正在使用laravel 8

问题描述

每当我尝试仅将更改保存到一个帖子时，结果就是我所做的所有其他帖子都进行了相同的更改.

Whenever I try to save changes to only one post, the outcome is that all other posts I have take on those same changes.

我在web.php中的路线是:

My routes in web.php are:

use App\Http\Controllers\PostsController;

Route::get('/posts/{post}/edit', [PostsController::class, 'edit']);

Route::patch('/posts/{post}', [PostsController::class, 'update'])->name('posts.update');

我在Posts Controller中的编辑功能是:

My edit function in Posts Controller is:

public function edit(Post $post)
  {
    return view('posts.edit-post', ['post' => $post]);
  }

我在Posts Controller中的更新功能是:

My update function in Posts Controller is:

public function update(Post $post, Request $request)
  {
    $data = request()->validate([
      'caption' => 'required',
      'url' => 'required',
      'image' => ['required', 'image'],
    ]);

    $imagePath = request('image')->store('uploads', 'public');

    auth()->user()->posts()->update([
      'caption' => $data['caption'],
      'url' => $data['url'],
      'image' => $imagePath,
    ]);

    return redirect('/users/' . auth()->user()->id);

  }

在edit-post.blade.php文件中，我的表单是:

My form in edit-post.blade.php file is:

<form action="{{('/posts/' . $post->id)}}" enctype="multipart/form-data" method="post">
      @csrf
      @method('PATCH')

      <div class="form-group">
          <label for="caption" class="create_caption_label">Post Caption</label>

          <div class="create_caption_div">
              <input id="caption"
              type="text"
              class="form-control @error('caption') is-invalid @enderror"
              name="caption"
              value="{{ old('caption') ?? $post->caption }}"
              autocomplete="caption" autofocus>

              @error('caption')
              <div class="invalid-feedback-div">
                <span class="invalid-feedback" role="alert">
                    <strong>{{ $message }}</strong>
                </span>
              </div>
              @enderror
          </div>
      </div>

      <div class="form-group">
          <label for="url" class="edit_title_label">URL</label>

          <div class="edit_url_div">
              <input id="url"
              type="text"
              class="form-control @error('url') is-invalid @enderror"
              name="url"
              value="{{ old('url') ?? $post->url }}"
              autocomplete="url" autofocus>

              @error('url')
              <div class="invalid-feedback-div">
                <span class="invalid-feedback" role="alert">
                    <strong>{{ $message }}</strong>
                </span>
              </div>
              @enderror
          </div>
      </div>

      <div class="create_post_image_div">
        <label for="image" class="create_image_label">Post Image</label>
        <input type="file" class="form-control-file" id="image" name="image">

        @error('image')
        <div class="invalid-feedback-div">
          <strong>{{ $message }}</strong>
        </div>
        @enderror

        <div class="create_post_btn_div">
          <button class="create_post_btn">Save Changes</button>
        </div>
      </div>

    </form>

最后，这是profile.blade.php文件，我想在其中将帖子的数据输出到:

And finally, here is the profile.blade.php file, where I would like to output the posts' data to:

@foreach( $user->posts as $post )
              <div class="carousel_posts_container">

                <div class="post_date_and_edit_div">

                  <div class="post_edit_div">
                    <form action="/posts/{{$post->id}}/edit">
                      <input class="post_edit_btn" type="submit" value="• • •">
                    </form>
                  </div>
                </div>

                <div class="carousel_post_img_div">
                  <img src="/storage/{{ $post->image }}" class="carousel_img_placeholder">
                </div>

                <div class="carousel_caption_container">

                  <div class="carousel_caption_div">
                    <p class="carousel_caption_username">{{$user->username}} - {{$post->caption}}</p>
                  </div>

                </div>

              </div>
 @endforeach

推荐答案

在您的控制器中，将其替换为:

In your controller replace this:

auth()->user()->posts()->update([
  'caption' => $data['caption'],
  'url' => $data['url'],
  'image' => $imagePath,
]);

与此:

$post->update([
  'caption' => $data['caption'],
  'url' => $data['url'],
  'image' => $imagePath,
]);

您刚刚更新了经过身份验证的用户的所有相关帖子.对于特定帖子，您只需要更新该特定实例.如果您当前的代码运行良好，那么在进行了很小的更改后，我也认为该代码也将正常工作.

There you've just updated all the related posts of authenticated user. For the specific post you need to update that specific instance only.If your current code is working well, then I believe that should be work after that small change as well.

这篇关于为什么当我编辑并保存对一个帖子的更改时，所有其他帖子都进行相同的更改?我该如何解决?我正在使用laravel 8的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！