Question

我正在尝试使用Laravel 5.5创建一个博客，但我收到了这个错误。

"Missing required parameters for [Route: posts.show] [URI: posts/{post}]. (View: /home/vagrant/Code/dialhousesetup.test/resources/views/posts/index.blade.php)"

在我的postcontroller.php文件中。我这样做了所以我可以在我的数据库中输出所有帖子：

public function index()
    {
        //Create a variable and store all the blog posts in it from the data base
        $posts = Post::all();

        //Return a view and pass in the above variable
        return view('posts.index', array('posts' => $posts));
    }

这是我在/ posts页面上写的循环，用于显示所有博客文章。

<div class="events mb-100">
        <div class="container">
            <div class="row">
               @foreach ($posts as $post)
                <div class="col-md-6">
                   <a href="{{ route('posts.show'), $post->id }}">
                    <div class="single-event text-center">
                        <img src="http://www.dialhousehotel.com/wp-content/uploads/2018/01/CC_1419-The-Dial-House-website-01-18-04.jpg" alt="" style="border:2px solid #bb9b50;">
                        <h2>{{$post->title}}</h2>
                        <p>{{$post->main_body}}</p>
                        <div class="separator"></div>
                        <a href="{{ route('posts.show'), $post->id }}"><button type="submit" class="button button-simple mt-30">Read More</button></a>
                    </div>
                    </a>
                </div>
              @endforeach
            </div>
        </div>
    </div>

老实说，我不知道自己做错了什么。

更新：人们已经注意到存在语法问题，我用{{route（'posts.show'，$ post-＆gt; id）}替换了{{route（'posts.show'），$ post-＆gt; id}} }

@foreach($posts as $post)
                <div class="col-md-6">
                   <a href="{{ route('posts.show', $post->id) }}">
                    <div class="single-event text-center">
                        <img src="http://www.dialhousehotel.com/wp-content/uploads/2018/01/CC_1419-The-Dial-House-website-01-18-04.jpg" alt="" style="border:2px solid #bb9b50;">
                        <h2>{{$post->title}}</h2>
                        <p>{{$post->main_body}}</p>
                        <div class="separator"></div>
                        <a href="{{ route('posts.show', $post->id) }}"><button type="submit" class="button button-simple mt-30">Read More</button></a>
                    </div>
                    </a>
                </div>
              @endforeach

但是，我现在正在获得"Invalid argument supplied for foreach() (View: /home/vagrant/Code/dialhousesetup.test/resources/views/posts/index.blade.php)"

<?php $__currentLoopData = $posts; $__env->addLoop($__currentLoopData); foreach($__currentLoopData as $post): $__env->incrementLoopIndices(); $loop = $__env->getLastLoop(); ?>
                <div class="col-md-6">
                   <a href="<?php echo e(route('posts.show', $post->id)); ?>">
                    <div class="single-event text-center">
                        <img src="http://www.dialhousehotel.com/wp-content/uploads/2018/01/CC_1419-The-Dial-House-website-01-18-04.jpg" alt="" style="border:2px solid #bb9b50;">
                        <h2><?php echo e($post->title); ?></h2>
                        <p><?php echo e($post->main_body); ?></p>
                        <div class="separator"></div>
                        <a href="<?php echo e(route('posts.show', $post->id)); ?>"><button type="submit" class="button button-simple mt-30">Read More</button></a>
                    </div>
                    </a>
                </div>
              <?php endforeach; $__env->popLoop(); $loop = $__env->getLastLoop(); ?>

Answer 1

您使用了错误的语法。将其更改为：

{{ route('posts.show', $post->id) }}

Answer 2

错误就在这里。

<a href="{{ route('posts.show'), $post->id }}">

它需要ID作为路线的一部分。所以它会是

<a href="{{ route('posts.show', $post->id) }}">

尝试使用laravel从数据库中读取

2 个答案: