目录

提交验证

声明规则

 特殊验证

 一个特殊验证的示例

内联验证器

一个完整示例

参考文档

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提交验证

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根据经验，您永远不应该相信从最终用户那里收到的数据，并且应该在很好地使用这些数据之前对其进行验证。

给定一个model模型，用户输入填充后，您可以通过调用yii\base\Model::validate()方法。该方法将返回一个布尔值，指示验证是否成功。否则，您可能会从 yii\base\Model::$errors 获取错误信息。举个例子，

$model = new \app\models\ContactForm();// 接收到的参数
$model->load(\Yii::$app->request->post());
// 其等效于以下内容
// $model->attributes = \Yii::$app->request->post('ContactForm');if ($model->validate()) {// 所有验证通过
} else {// 验证失败：$errors是一个包含错误消息的数组$errors = $model->errors;
}

声明规则

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public function rules()
{return [// the name, email, subject and body attributes are required[['name', 'email', 'subject', 'body'], 'required'],// the email attribute should be a valid email address['email', 'email'],];
}

 特殊验证

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 有时候你需要做特殊验证对于未绑定到任何模型的值。

如果您只需要执行一种类型的验证(例如验证电子邮件地址)，您可以调用验证()方法，如下所示:

$email = 'test@example.com';
$validator = new yii\validators\EmailValidator();if ($validator->validate($email, $error)) {echo 'Email is valid.';
} else {echo $error;
}

 一个特殊验证的示例

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<?php
/*** @author zhao* @copyright Copyright (c) 2018 HNBY Network Technology Co., Ltd.* @wx zzoood*/
namespace api\modules\models;use Yii;
use yii\base\Exception;
use yii\base\Model;
use yii\base\UserException;class WeLoginForm extends Model
{public $mobile;//手机区号public $uid;public $sms_code;public $invite_code;public function rules() {return [[['mobile', 'sms_code', 'invite_code'], 'trim'],[['mobile', 'code', 'invite_code'], 'string'],['mobile', 'validateMobile'],['invite_code', 'validateInviteCode', 'skipOnEmpty' => false],['sms_code', 'validateSmsCode'],];}public function attributeLabels() {return ['mobile' => '手机号','sms_code' => '短信验证码','invite_code' => '推荐码',];}public function validateMobile($attribute) {if (!$this->hasErrors()) {if (!Utils::isMobile($this->mobile, $this->countryCode)) {$this->addError($attribute, '手机号格式不对');}}}public function validateSmsCode($attribute) {if (!$this->hasErrors()) {try {SmsVerifycode::check($this->biz_id, 'bind', $this->mobile, $this->sms_code);} catch (Exception $e) {$this->addError($attribute, $e->getMessage());}}}public function validateInviteCode($attribute){if (!$this->hasErrors()) {if ($this->getMobileUser()) {// 登录时和绑定已存在的手机号时不验证return;}//锁粉记录存在时不验证if (!empty($this->uid)) {$user = User::findOne($this->uid);if (!empty($user) && !empty($user->wechat_unionid)) {$wxlock = Wxlock::find()->where(['biz_id' => $this->biz_id, 'wechat_unionid' => $user->wechat_unionid])->one();if (!empty($wxlock)) {return;}}}$mustInviteCode = DistributionConfig::get($this->biz_id, 'user-config', 'INVITE_IS_OPEN', 0);if ($mustInviteCode) {if (!$this->invite_code) {$this->addError($attribute, '请填写邀请码');}}}}}

内联验证器

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 内联验证器是根据模型方法或匿名函数定义的。方法/函数的签名是:

use yii\base\Model;class MyForm extends Model
{public $country;public $token;public function rules(){return [// an inline validator defined as the model method validateCountry()['country', 'validateCountry'],// an inline validator defined as an anonymous function['token', function ($attribute, $params, $validator) {if (!ctype_alnum($this->$attribute)) {$this->addError($attribute, 'The token must contain letters or digits.');}}],];}public function validateCountry($attribute, $params, $validator){if (!in_array($this->$attribute, ['USA', 'Indonesia'])) {$this->addError($attribute, 'The country must be either "USA" or "Indonesia".');}}
}

一个完整示例

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• controller

    /*** 商品检索*/public function actionProductSearch(){$request = Yii::$app->request;try {$model = new DouForm();$model->load($request->post(),'');if (!$model->validate()) {throw new Exception($this->errors($model->errors));}} catch (Exception $e) {return $this->responseJson(1, '', $e->getMessage());}}

• Form模型

<?php
/*** @author zhao* @copyright Copyright (c) 2018 HNBY Network Technology Co., Ltd.* @wx zzoood*/
namespace api\modules\models;
use yii\base\Model;class DouForm extends Model
{public $title;public $num;public function rules() {return [['title', 'required'],['num', 'integer', 'min' => 0, 'max' => 1],];}public function attributeLabels() {return ['title' => '标题','num' => '数量',];}
}

• error处理

    // 因errors是一个数组，不能有效的返回给前端错误信息，进行改造/*** 验证类错误处理*/public function errors($errors){foreach ($errors as $error) {return $error[0];}exit();}

参考文档

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• Getting Data from Users: Validating Input | The Definitive Guide to Yii 2.0 | Yii PHP Framework