Maison >développement back-end >tutoriel php >Laravel 表单验证
php artisan make:request ArticlesRequest Request created successfully.
文件内容如下:
app/Http/Requests/ArticlesRequest.php< ?phpnamespace App\Http\Requests;use App\Http\Requests\Request;class ArticlesRequest extends Request{ /** * Determine if the user is authorized to make this request. * * @return bool */ public function authorize() { return true; //这个是管理权限的,暂时先设置为true,全部权限可用 } /** * Get the validation rules that apply to the request. * * @return array */ public function rules() { return [ 'title'=>'required', //这里是指定验证的项目,和验证的规则,以数组的方式编写 'content'=>'required' ]; }}
验证规则参考官网: https://laravel.com/docs/5.2/validation
app/Http/Requests/ArticlesRequest.phpuse App\Http\Requests\ArticlesRequest;// public function store(Request $requests){ public function store(ArticlesRequest $requests){ //这里传入的是刚才创建的ArticlesRequest的实例 Articles::create($requests->all()); return redirect('/articles'); }
因为现在增加了验证,所以对store方法的进入的请求request都会进行过滤,但是直接过滤就不知道成功和失败了,所以要额外增加一个提示
resources/views/articles/create.blade.php@extends('layout.app')@section('content') <h1>创建文章</h1> {!! Form::open(['url'=>'/articles/store']) !!} <!--- Title Field ---> <div class="form-group"> {!! Form::label('title', 'Title:') !!} {!! Form::text('title', null, ['class' => 'form-control']) !!} </div> <!--- Content Field ---> <div class="form-group"> {!! Form::label('content', 'Content:') !!} {!! Form::textarea('content', null, ['class' => 'form-control']) !!} </div> <!--- Field ---> <div class="form-group"> {!! Form::label('publish_at', 'publish_at:') !!} {!! Form::date('publish_at', date('Y-m-d'), ['class' => 'form-control']) !!} </div> {!! Form::submit('发表文章',['class'=>'btn btn-primary form-control']) !!} {!! Form::close() !!} @if($errors->any()) //增加这里,$errors变量是laravel提供的,就是捕获这些出错而保存的变量,是一个数组 <ul class="list-group"> @foreach($errors->all() as $error) //所以需要循环变量数组,获取最终报错信息 <li class="list-group-item list-group-item-danger">{{$error}}</li> @endforeach </ul> @endif@stop
需要注意的是,在laravel 5.2里面,$errors变量需要在中间件web里面才会存在,如果不是的话,laravel会报错,Undefined variable: errors。
正常情况下,触发验证规则的报错弹出提示会在网页中显示,例如
The title field is required.The content field is required.
重写报错提示信息,例如改成中文提示,需要在request文件里面重写messages方法,文件内默认没有,所以我们需要添加
app/Http/Requests/ArticlesRequest.php public function messages() { return [ 'title.required' => '这个标题是必须的!', //例如这样就会匹配标题required的规则,然后触发你的提示 'body.required' => '这个身体是必须的!', ]; }