Laravel 表单验证仅在点击后退按钮时有效

Question

I'm using Laravel 4.2. My issue happens after submitting the form with data that will fail during form validation (short pass, invalid email, etc).

My form is at /register. When I submit the form with invalid data, the page goes blank (white) and no data is entered into the database. The validation errors only show up after I hit the back button in the browser.

If I enter valid data, the form submits and adds data to the database correctly, and redirects the user to /account.

Any help would be greatly appreciated. I feel like it's something small that I'm overlooking, and it's kicking my ass.

Here's my code...

User.php

use Illuminate\Auth\UserTrait;
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableTrait;
use Illuminate\Auth\Reminders\RemindableInterface;

class User extends BaseModel implements UserInterface, RemindableInterface {

    use UserTrait, RemindableTrait;

    /**
     * The database table used by the model.
     *
     * @var string
     */
    protected $table = 'users';

    /** Protect from mass-assignment **/
    protected $fillable = array('username', 'email', 'password', 'password_confirmation');

    /**
     * The attributes excluded from the model's JSON form.
     *
     * @var array
     */
    protected $hidden = array('password', 'remember_token');

    public static $rules = array(
        'username'=>'required|unique:users,username|alpha_dash|min:4',
        'password'=>'required|between:8,32|confirmed',
        'password_confirmation'=>'required|between:8,32',
        'email'=>'required|email|unique:users,email'
    );

}

UsersController.php

class UsersController extends BaseController {

    public function getNew() {
        return View::make('users.new')
            ->with('title', 'Create An Account');
    }   

    public function postCreate() {
        $validation = User::Validate(Input::all());

        if ($validation->passes()) {
            User::create(array(
                'username'=>Input::get('username'),
                'password'=>Hash::make(Input::get('password')),
                'email'=>Input::get('email')
            ));

            return Redirect::to('account')->with('message', 'Welcome! Your account has been created.');
        } else {
            Redirect::to('register')->withErrors($validation)->withInput();
        }
    }
}

Routes.php

Route::get('register', array('as'=>'register', 'uses'=>'UsersController@getNew'));

Route::post('register', array('before'=>'csrf', 'uses'=>'UsersController@postCreate'));

new.blade.php

    @if($errors->has())
        <p>The following errors have occured:</p>

        <ul id="form-errors">
            {{ $errors->first('username', '<li>:message</li>') }}
            {{ $errors->first('password', '<li>:message</li>') }}
            {{ $errors->first('password_confirmation', '<li>:message</li>') }}
            {{ $errors->first('email', '<li>:message</li>') }}
        </ul>   
    @endif

    {{ Form::open(array('action'=>'register')) }}

    <p>
        {{ Form::label('username', 'Username') }}<br />
        {{ Form::text('username', Input::old('username')) }}
    </p>

    <p>
        {{ Form::label('email', 'Email Address') }}<br />
        {{ Form::text('email', Input::old('email')) }}
    </p>

    <p>
        {{ Form::label('password', 'Password') }}<br />
        {{ Form::password('password') }}
    </p>

    <p>
        {{ Form::label('password_confirmation', 'Confirm Password') }}<br />
        {{ Form::password('password_confirmation') }}
    </p>

    <p>
        {{ Form::submit('Register') }}
    </p>

    {{ Form::close() }}

basemodel.php

class BaseModel extends Eloquent {

    public static function validate($data) {
        return Validator::make($data, static::$rules);
    }
}

Answer 1

In your UsersController::postCreate() function you're not returning the Redirect::to() in your else{} and so the response isn't being sent back to the user. The controller is just executing without returning anything and so you're left with a blank page.

Redirect::to('register')->withErrors($validation)->withInput();

needs to become

return Redirect::to('register')->withErrors($validation)->withInput();