外观\点火\异常\视图异常？

Question

我跟在一起，已经到了我想不出的程度。当试图显示标题{{$blog->title}}时，我得到以下错误：

试图获取非对象的属性“标题”(View: /Users/***/Desktop/DigitalCulture/DG/resources/views/blogs/show.blade.php)“)

数据库：

 public function up()
    {
        Schema::create('blogs', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->string('title');
            $table->text('excerpt');
            $table->text('body');
            $table->timestamps();
        });
    }

路由：

Route::get('/', function () {
    return view('welcome');
});

Route::get('/about', function () {
    $blogs = DB::table('blogs')->take(3)->latest()->get();

    return view('/about', [
        'blogs' => $blogs
    ]);
});

Route::get('/blogs/{blog}', 'BlogsController@show');

控制器

<?php

namespace App\Http\Controllers;

use App\blog;
use Illuminate\Http\Request;

class BlogsController extends Controller
{
    public function show($id)
    {

        $blog = Blog::find($id);

        if( is_null($blog) ){
            dd( 'There is no post with this id='.$id);
        }

        return view('blogs.show')->with('blog', $blog);
    }
}

Show.blade

@extends ('layout')

@section ('content')

<div id="wrapper">
    <div id="page" class="container">
        <div id="content">
            <div class="title">
                <h2> {{$blog->title}} </h2>
                </div>

            <p><img src="/images/banner.jpg" alt="" class="image image-full" /> </p>
            <p> 
            {{$blog->body}}
            </p>
        </div>
        </div>
        </div>
@endsection

博客PHP

 <?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Blog extends Model
{
    //
}

数据库

[https://i.stack.imgur.com/yswTb.png][1]

Answer 1

更新

public function show($id)  {

至

public function show(Blog $blog) {

Answer 2

您确定所有的blogs都有title属性吗？似乎有些博客错过了它。如果是这样的话，您可以在刀片中使用一些三元操作符来检查数据是否存在，这样就不会有异常。简单的例子：

{{$blog->title ? $blog->title : 'No title' }}

Answer 3

首先，您必须将这一行use App\blog;编辑为use App\Blog;，然后尝试共享类似于return view('blogs.show', compact('blog'));或return view('blogs.show', ['blog' => $blog]);的变量。