Yii форма не проверяется

Это мой код в actionCheckout ():

public function actionCheckout() {
$proInfo = Yii::app()->session['cart'];
if (Yii::app()->user->isGuest) {
$model = new Payment;

// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);

if (isset($_POST['Payment'])) {
$model->attributes = $_POST['Payment'];
$model->thoigian = date('Y-m-d H:i:s');
if ($model->save()) {
foreach ($proInfo as $key => $value) {
$order = new Order;
$order->id_sp = $key;
$order->soluong = $value;
$product = Product::model()->findByPK($key);
if (empty($product->khuyenmai)) {
$price = $product->gia_sp;
} else {
$price = ceil($product->gia_sp * (100 - $product->khuyenmai) / 100 / 1000) * 1000;
}
$order->thanhtien = $price * $value;
$order->id_payment = $model->id_hoadon;
$order->save();
}
unset(Yii::app()->session['cart']);
$this->redirect(Yii::app()->request->baseUrl . '/cart/success/' . $model->id_hoadon);
}
}

$this->render('checkout', array(
'cart' => $proInfo,
'model' => $model,
));
} else {
$model = new Payment;
$user = User::model()->findByPk(Yii::app()->user->id);

// Uncomment the following line if AJAX validation is needed
// $this->performAjaxValidation($model);

if (isset($_POST['Payment'])) {
$model->attributes = $_POST['Payment'];
$model->id_user = Yii::app()->user->id;
$model->hoten = $user->hoten;
$model->email = $user->email;
$model->dienthoai = $user->dienthoai;
$model->diachi = $user->dia_chi;
$model->thoigian = date('Y-m-d H:i:s');
$model->xuly = "Chưa xử lý";
if ($model->save()) {
foreach ($proInfo as $key => $value) {
$order = new Order;
$order->id_sp = $key;
$order->soluong = $value;
$product = Product::model()->findByPK($key);
if (empty($product->khuyenmai)) {
$price = $product->gia_sp;
} else {
$price = ceil($product->gia_sp * (100 - $product->khuyenmai) / 100 / 1000) * 1000;
}
$order->thanhtien = $price * $value;
$order->id_payment = $model->id_hoadon;
$order->save();
}
unset(Yii::app()->session['cart']);
$this->redirect(Yii::app()->request->baseUrl . '/cart/success/' . $model->id_hoadon);
}
}

$this->render('checkout', array(
'user' => $user,
'cart' => $proInfo,
'model' => $model,
));
}
}

И это мой файл «checkout.php» в представлениях:

<link rel="stylesheet" type="text/css" href="<?= Yii::app()->request->baseUrl ?>/css/cart.css"/>
<?php
$this->breadcrumbs = array(
'Giỏ hàng' => array('cart/index'),
'Thanh toán'
);
$this->pageTitle = "Thanh Toán";
$items = 0;
$total = 0;
$i = 0;
?>
<h1>Thanh toán</h1>
<?php
if (empty($cart)) {
echo "<p>Bạn chưa có sản phẩm nào trong giỏ hàng</p>";
} else {
$form = $this->beginWidget('CActiveForm', array(
'id' => 'payment-form',
// Please note: When you enable ajax validation, make sure the corresponding
// controller action is handling ajax validation correctly.
// There is a call to performAjaxValidation() commented in generated controller code.
// See class documentation of CActiveForm for details on this.
'enableAjaxValidation' => false,
));
?>

<div class="payment">
<?php
if (!Yii::app()->user->isGuest) {
?>
<div class="paymentCustomer">
<h3>Thông tin thanh toán</h3>
<div style="padding: 10px; clear:both; float:left">Họ tên:<?= Yii::app()->user->name ?></div>
<div style="padding: 10px; clear:both; float:left">Email:<?= $user->email ?></div>
<div style="padding: 10px; clear:both; float:left">Địa chỉ:<?= $user->dia_chi ?></div>
<div style="padding: 10px; clear:both; float:left">Điện thoại:<?= $user->dienthoai ?></div>
</div>
<?php
} else {
?>

<div class="paymentCustomer">
<h3>Thông tin thanh toán</h3>
<div class="inputUser"><div>Họ tên <span>*</span></div><?php echo $form->textField($model, 'hoten', array('class' => "inputText loginText")); ?></div>
<?php echo $form->error($model, 'hoten'); ?>
<div class="inputUser"><div>Email <span>*</span></div><?php echo $form->textField($model, 'email', array('class' => "inputText loginText")); ?></div>
<?php echo $form->error($model, 'email'); ?>
<div class="inputUser"><div>Địa chỉ <span>*</span></div><?php echo $form->textField($model, 'diachi', array('class' => "inputText loginText")); ?></div>
<?php echo $form->error($model, 'diachi'); ?>
<div class="inputUser"><div>Điện thoại <span>*</span></div><?php echo $form->textField($model, 'dienthoai', array('class' => "inputText loginText")); ?></div>
<?php echo $form->error($model, 'dienthoai'); ?>
</div><?php
}
?>
<div class="paymentCustomer">
<h3>Hình thức thanh toán</h3>
<p class="paymentYour">
<?php
echo $form->radioButtonList($model, 'phuongthuc', array(
'Tại Cửa hàng' => 'Thanh toán tại cửa hàng',
'Khi Nhận hàng' => 'Thanh toán khi nhận được hàng',
'Tài khoản Ngân hàng' => 'Thanh toán qua tài khoản Ngân hàng'
), array("class" => "myCheck"));
?>
<?php echo $form->error($model, 'phuongthuc'); ?>
</p>
<h3 style="margin: 50px 0 5px 0;">Mã khuyến mãi</h3>
<?php echo $form->textField($model, 'coupon', array('class' => "inputText loginText")); ?>
<?php echo $form->error($model, 'coupon'); ?>
</div>
</div>
<div class="cartInfo">
<div class="headCart">
<div class="cartField1">Mã sản phẩm</div>
<div class="cartField2">Tên sản phẩm</div>
<div class="cartField3">Đơn giá</div>
<div class="cartField3">Số lượng</div>
<div class="cartField3">Thành tiền</div>
</div><?php
foreach ($cart as $key => $value) {
$product = Product::model()->findByPK($key);
if (empty($product->khuyenmai)) {
$price = $product->gia_sp;
} else {
$price = ceil($product->gia_sp * (100 - $product->khuyenmai) / 100 / 1000) * 1000;
}
?>
<div class="bodyCart">
<div class="cartField1" data-label="Mã sản phẩm"><?= $product->ma_sp ?></div>
<div class="cartField2" data-label="Tên sản phẩm"><span><?= $product->ten_sp ?></span></div>
<div class="cartField3" data-label="Đơn giá"><?= $price . "đ" ?></div>
<div class="cartField3" data-label="Số lượng"><?= $value ?></div>
<div class="cartField3" data-label="Thành tiền"><?= $price * $value . "đ" ?></div>
</div>
<?php
$items +=$value;
$total +=$price * $value;
}
?>
<div class="footCart">
<div class="cartField1">Tổng cộng</div>
<div class="cartField2"></div>
<div class="cartField3"><?= $items ?></div>
<div class="cartField3"><?= $total . "đ" ?></div>
</div>
</div>
<div>
<a href="<?= Yii::app()->request->urlReferrer ?>">
<input type="button" class="cartLeftButton button" value="Quay trở lại"/>
</a>
<?php echo CHtml::submitButton('Xác nhận và gửi đơn hàng', array("class" => "cartRightButton button")); ?>
</div>
<?php
$this->endWidget();
}
?>

Но когда вы отправляете эту форму, она не сразу попадает на страницу успеха. Я должен попытаться вставить die («abc») в каждую строку в контроллере и выяснить, что он не запускается из строки

if($model->save()){....

Как я могу это исправить сейчас?