如何只编辑一篇文章而不是迭代循环所有文章？

Question

我foreach($user->posts as $post)在输入字段上使用，以便我能够使用它，value="{{ old('about') ?? $post->about }}"因为如果没有迭代，我在使用该值时会收到错误（试图获取对象的属性）。但是，在尝试编辑时，我不知道我的 edit.blade 看起来像这样，我只需要一个输入字段来表示我正在尝试编辑的一篇特定帖子

编辑.blade.php

@extends('layouts.app')

@section('content')

<div class="container">

<form action="/p/update/{{ $user->id}}" enctype="multipart/form-data" method="POST">

@csrf

@method ('PATCH')

<div class="col-8 offset-2">

<div class="form-group row">

@foreach($user->posts as $post)

    <label for="about" class="col-md-4 col-form-label text-md-right">{{ __(' post about') }}</label>

    <div class="col-md-6">

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

    @error('about')

        <span class="invalid-feedback" role="alert">

            <strong>{{ $message }}</strong>

        </span>

    @enderror

    </div>

@endforeach

    <label for="image" class="col-md-4 col-form-label text-md-right">{{ __(' post image') }}</label>

    <input type="file", class="form-control-file" id ="image" name="image"  >

    @error('image')

            <div class="invalid-feedback" role="alert">

                <strong>{{ $message }}</strong> </div>

    @enderror

      <div class="btn btn-primary">

      <button> save </button>

      </div>

    </div> 

</div>

</form>

</div>

@endsection

路线

Route::get('/post/edit/{user}', 'PostController@edit')->name('post.edit');

Route::patch('/p/update/{user}', 'PostController@update')->name('post.update');

后置控制器

 public function edit(User $user)

{

   

  return view('posts.edit', compact('user'));

}

 public function update(User $user)

{

$data = request()->validate([

    'about' => 'required',

    'image' => '',

  ]);

Answer 1

为了传递一篇文章进行编辑，您必须像这样传递这篇文章：路线Route::get('/post/edit/{post}', 'PostController@edit')->name('post.edit');控制器&nbsp;public function edit(Post $post){&nbsp; &nbsp;&nbsp; return view('posts.edit', compact('post'));}刀片锉刀<label for="about" class="col-md-4 col-form-label text-md-right">{{ __(' post about') }}</label><div class="col-md-6"><input id="about" type="text" class="form-control @error('about') is-invalid @enderror" name="about"&nbsp; value="{{ old('about') ?? $post->about }}" required autocomplete="about" autofocus>&nbsp; &nbsp; @error('about')&nbsp; &nbsp; &nbsp; &nbsp; <span class="invalid-feedback" role="alert">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <strong>{{ $message }}</strong>&nbsp; &nbsp; &nbsp; &nbsp; </span>&nbsp; &nbsp; @enderror</div>