Laravel5 basics (11)-form verification

: This article mainly introduces Laravel5 basics (11)-form verification. if you are interested in PHP tutorials, refer to it. When you create an article, if you do not input anything and submit it directly, OK, you get an empty article without any error message. this is wrong. Run php artisanYou can see an option make:requestTo create a form request class. Execute

php artisan make:request CreateArticleRequest

The generated file is inapp/http/requestsDirectory. In the file, we can see two methods:

public function authorize(){return false;}public function rules(){return [//];}

authorizeWhether the user needs to be authenticated when submitting the form. if authentication is not required, true is returned.rulesIs our rule method. Let's modify this method:

Public function authorize () {// modify to true, indicating that authentication is not required, or return true through authentication;} public function rules () {return ['title' => 'required | min: 3', 'body' => 'required', 'published _ at' => 'required | date'];}

Other constraints can be inserted into laravel's documentation. The constraints above indicatetitleRequired. it must contain at least 3 characters,bodyIs required,published_atIt is required and a date.

In the view, we can always access$errorsVariable to determine whether there is an error, modify the View

@ If ($ errors-> any ())
  
  

    @ Foreach ($ errors-> all () as $ error) 
   
{$ Error }}
@ Endforeach 
  
@ Endif {-- use the illuminate \ html open source library we added --}}{!! Form: open (['URL' => 'articles '])!}

Modify the controller and introduce our Request class.

    public function store(Requests\CreateArticleRequest $request) {        Article::create($request->all());        return redirect('articles');    }

If you submit the form again without entering anything, you can see the error message.

Change the prompt to Chinese

The error message is displayed in English. In fact, laravel considers internationalization and first modifiesconfig/app.php,

'locale' => 'zh',

Set the locale language to Chinese, and thenresources/langCreate a folderzh, Copyresources/lang/en/validation.phpFilezhDirectory, modify:

"Min" => ["numeric" => "The: attribute must be at least: min. "," file "=>" The: attribute must be at least: min kilobytes. "," string "=>": attribute must contain at least min characters. "," Array "=>" The: attribute must have at least: min items. ",]," required "=>": attribute is required. ",

Others can be translated by yourself. Submit an empty form again. The error message is in Chinese. Andmin:3Is also judged to be at least three Chinese characters.

--

Laravel is also integrated in the controllervalidateMETHOD. In other words, we do not have to generate the request class, which can be done directly in the controller.

Modify controller:

// Note the Request namespace. do not mistake public function store (\ Illuminate \ Http \ Request $ request) {$ this-> validate ($ request, ['title' => 'required | min: 3', 'body' => 'requestred', 'hhed _ at' => 'required | date']); Article:: create ($ request-> all (); return redirect ('article ');}

The results are the same, so that simple verification can be completed more quickly.

The above introduces Laravel 5 basics (11)-form verification, including some content, and hope to be helpful to friends who are interested in PHP tutorials.