Yii -Class'frontend \\ controllers \\ UserForm'找不到错误

Question

Yii frame work I place UserFrom.php in root/models folder code is bellow

<?
namespace app\models;
use yii\base\Model;

class UserForm extends Model
{

    public $name;
    public $email;

    public function rules()
    {
        return[[['name','email'],'required'],
                ['email','email'],]
    }

}

?>

and modifi the root/frontend/controllers/ Sitecontroller.php file . add the following code

public function actionUser()
{
    $model=new UserForm;
    if($model->load(Yii::$app->request->post()) && $model->valideate())
    {

    }
    else
    {
        return $this->render('userForm',['model'=>$model] );
    }
}

then finaly add new file in root/views/site/userForm.php its code bellow

<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
?>
<?php $form=ActiveForm::begin();?>
<?php $form->field($model,'name'); ?>
<?php $form->field($model,'email'); ?>
<?php Html::submitButton('Submit',['class'=>'btn btn-success']);

if i open the url i am getting error url= http://localhost/yiicomm/frontend/web/index.php?r=site/user

PHP Fatal Error – yii\\base\\ErrorException Class 'frontend\\controllers\\UserForm' not found. i feel i placed correcly but get error . what is wrong in my code

Answer 1

Try using the full namespace:

$model=new \app\models\UserForm;

Or include the following line at top of your controller:

use app\models\UserForm;

Answer 2

您忘记了使用Use Operator获取类UserForm的全限定名称，例如

use app\\models\\Userform;

Answer 3

you can add

use app\models\UserForm;

in your Controller