这是CategoriesController的代码:
public function index()
{
$categories = Category::all();
return view('/home', compact('categories'));
}
这是我正在写给home.blade.php
的代码
@foreach($categories as $cat)
@endforeach
然后在home.blade.php
中
我得到这个错误:Undefined variable: categories
为什么会发生这种情况?文章的一切都很好,但分类和代码是一样的。
主页.blade.php
@extends('app')
@section('content')
<div class="col-md-4 pull-right">
<div class="panel panel-primary">
<div class="panel-heading">
<h3 class="panel-title">Categories</h3>
</div>
<div class="panel-body">
@foreach($categories as $cat)
<div class="col-lg-6">
<ul class="list-unstyled">
<li><a href="articles/category/{{ }}">News</a>
</li>
</ul>
</div>
@endforeach
</div>
</div>
</div>
@if(count($articles))
@foreach($articles as $article)
<div class="panel panel-default col-md-8">
<div class="panel-heading">
<h3>{{ $article->title }}</h3>
<small>posted by <a href="users/{{ $article->author->name }}">{{ $article->author->name }}</a> {{ $article->created_at }}</small>
</div>
<div class="panel-body">
{!! str_limit($article->body, 1000) !!}
<hr>
<a href="{{ url('/articles/'.$article->slug) }}">Read More</a>
</div>
</div>
@endforeach
@else
<h1>No articles at the moment.</h1>
@endif
<br>
{!! $articles->render() !!}
@stop
您有两条路线
Route::get('/home', 'ArticlesController@index');
Route::get('/home', 'CategoriesController@index');
这意味着当你访问/回家时ArticlesController@index被解雇,而不是两者都被解雇。
这意味着视图中使用的$categories
变量不会被填充,因为CategoriesController中的index()
方法旨在执行此操作,但从未被调用。
因此,你需要做一些类似的事情
Route::get('/home', 'HomeController@index');
public function index()
{
$categories = Category::all();
$articles = Article::all();
return view('/home', compact('articles', 'categories'));
}
尝试使用
return View::make('/home')->with(compact('categories'));
而不是
return view('/home', compact('categories'));
我将其插入@foreach 的顶部
<?php
use App'models'PersonalContact;
$data = PersonalContact::all();
?>
或者在@foreach之前添加@if语句,如
@if (count($data) > 0)
@foreach ($data as $bloginfo)
<tr role="row" class="odd">
<td class="sorting_1">{{$bloginfo->name}}</td>
<td>{{$bloginfo->description}}</td>
<td>{{$bloginfo->email}}</td>
<td>{{$bloginfo->phone}}</td>
<td><img src="{{url('images/'.$bloginfo->image)}}" alt="" width="100px" height="100px"></td>
<td><a href="{{url('admin/{admin}/personalcontact/create')}}" class="btn btn-app"><i class="fas fa-edit"></i>Add</a> | <a href="{{url('admin/{admin}/personalcontact/{personalcontact}/edit')}}" class="btn btn-app"><i class="fas fa-edit"></i>Edit</a> | <a class="btn btn-app"><i class="fas fa-edit"></i>Delete</a></td>
</tr>
@endforeach
@endif
return view('/home', compact('categories'));
问题是压缩方法上的$categories
,您必须像字符串一样使用