cform与rules [ 未指定版本 ]

model：File.php

<?php

class File extends CFormModel {

    public $image;

    public function rules() {
        return array(
            array('image', 'file', 'types' => 'jpg, jpeg, gif, png', 'allowEmpty' => true),
        );
    }

    //这是cfrom的配置文件
    public function getFMConfig() {
        return array(
            'title' => '上传',
            'elements' => array(
                'image' => array(
                    'type' => 'file',
                ),
            ),
            'buttons' => array(
                'upload' => array(
                    'type' => 'submit',
                    'label' => '上传',
                ),
            ),
        );
    }

}

controller FileController.php

<?php

class FileController extends Controller {

    public function actionIndex() {
        $model = new File();
        $form = new CForm($model->getFMConfig(), $model);

        if ($form->submitted('upload') && $form->validate()) {
            echo 'dd';
        }

        $this->render('upload', array('form' => $form));
    }

}

<div class="form">
<?php  echo $form; ?>
</div>

1.elements 不显示上传框

2.如果把elements 配置visible能显示上传框

但是，验证直接就过了，即使是错的也过了