在有条件@if内扩展布局，导致布局重复 [英] Extending layout inside conditional @if causing duplication of layout
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问题描述
我正在研究laravel 5.5.我正在检查用户是否这样登录:
I'm working on laravel 5.5. I'm checking whether the user is logged in like this :
@if(Auth::check())
//some logic
@else
//somelogic
@endif
但是if/else语句将执行两次，具体取决于用户是否登录.您为什么认为这种情况正在发生? 我已经尝试过此处所述的其他方法来检查身份验证.我仍然遇到相同的错误.
But the if/else statement is getting executed twice depending whether the user is logged in or not. Why do you think that's happening? I have tried other ways to check authentication as mentioned here. Still I'm getting the same error.
我正在使用的布局.
<!DOCTYPE html>
<html lang="{{ app()->getLocale() }}">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-
scale=1">
<title>{{ config('app.name', '') }}</title>
<!-- Styles -->
<link href="{{ asset('css/app.css') }}" rel="stylesheet">
</head>
<body>
<div id="app">
@include('inc.navbar')
<div class="container">
@yield('content')
</div>
</div>
<!-- Scripts -->
<script src="{{ asset('js/app.js') }}"></script>
</body>
</html>
实施逻辑
@if(Auth::user())
@extends('layouts.app')
@section('content')
<h1> Exercises</h1>
@endsection
@else
@extends('layouts.app')
@section('content')
<h1> Nope</h1>
@endsection
@endif
推荐答案
像这样更改您的页面. @extends不应被调用两次.
Change your page like this. @extends should not be called twice.
@extends('layouts.app')
@section('content')
@if(Auth::user())
<h1> Exercises</h1>
@else
<h1> Nope</h1>
@endif
@endsection
如果要扩展使用不同的布局，也可以使用三元运算符:
You can also use a ternary operator if you want different layouts for extend :
@extends(Auth::check() ? 'layouts.app' : 'layouts.app2')
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