Question

我的PostCOntroller

 class PostController extends Controller
{
public function index()
{
    $posts = post::all();
    return view('posts.index',['p'=>$posts]);
}

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

master.blade.php

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <link rel="stylesheet" href = "/css/bootstrap.css">
   <title>Document</title>
</head>
<body>
   <div class="big-info p-5">
   <a href = "{{route('hello.index')}}">Home</a>
   <a href = "{{route('hello.create')}}">Create</a>
  </div>

   <div class="container">
    <center><h1>POST<h1></center>
    @yield('body')

</div>

index.blade.php

@extends('posts.master')

@section('body')
  @foreach($p as $post)
  <div class="card mt-2">
  <a href = "{{ route('hello.show'),$post->id}}">{{$post->title}}</a>
  </div>
 @endforeach
@endsection

show.blade.php

@extends('posts.master')

@section('body')

<div class="card">
  <div class="card-body">
     <h3>{{$post->title}}</h3>
  </div>

  <div class="card-body">
     <h3>{{$post->content}}</h3>
  </div>

</div>

@endsection

web.php

Route::resource('hello','PostController');

php artisan route：list

 GET|HEAD  | hello              | hello.index   | App\Http\Controllers\PostController@index   | web          |
 POST      | hello              | hello.store App\Http\Controllers\PostController@store   | web          |
 GET|HEAD  | hello/create       | hello.create  | App\Http\Controllers\PostController@create  | web          |
 GET|HEAD  | hello/{hello}      | hello.show    | App\Http\Controllers\PostController@show    | web

我想我写的都没错..索引页正在从数据库发送数据的ID ...控制器正在接收数组$ post中的数据，并且显示刀片应该显示数据$ post-> title或$ post-> content，但这没有发生我认为这是一个愚蠢的错误，但无法弄清楚问题是我的显示页面未显示数据请帮助

＃

在索引页中添加{{dd（$ post）}}

post {#199 ▼
 #fillable: array:2 [▼
  0 => "title"
  1 => "content"
 ]
#connection: "mysql"
#table: null
#primaryKey: "id"
#keyType: "int"
+incrementing: true
#with: []
#withCount: []
#perPage: 15
+exists: true
+wasRecentlyCreated: false
#attributes: array:5 [▶]
#original: array:5 [▶]
#changes: []
#casts: []
#dates: []
#dateFormat: null
#appends: []
#dispatchesEvents: []
#observables: []
#relations: []
#touches: []
+timestamps: true
#hidden: []
#visible: []
#guarded: array:1 [▼
0 => "*"
]
}

在展示刀片中添加{{dd（$ post）}}

post {#195 ▼
 #fillable: array:2 [▶]
 #connection: null
 #table: null
 #primaryKey: "id"
 #keyType: "int"
 +incrementing: true
 #with: []
 #withCount: []
 #perPage: 15
 +exists: false
 +wasRecentlyCreated: false
 #attributes: []
 #original: []
 #changes: []
 #casts: []
 #dates: []
 #dateFormat: null
 #appends: []
 #dispatchesEvents: []
 #observables: []
 #relations: []
 #touches: []
 +timestamps: true
 #hidden: []
 #visible: []
 #guarded: array:1 [▶]
 }

Answer 1

如果$ hello是帖子的ID，则您的显示控制器应为：

public function show($hello)
{
    $post = Post::find($hello);
    return view('posts.show', ['post'=>$post]);
}

无法从显示控制器获取数据以查看laravel 5.6

1 个答案: