Yii2:ActiveForm 字段数字,长度 =>8 [英] Yii2: ActiveForm field numeric, length => 8
问题描述
我正在尝试让 yii2 验证我的 ActiveForm
字段,该字段应该是数字且长度为 8 个字符.
I'm trying to make yii2 to validate my ActiveForm
field that should be numeric and of 8 characters long.
以下是我在 yii2/advanced/backend
的默认 LoginForm
模型中尝试的,但不幸的是 isNumeric
验证器根本没有开始:
Following is what I tried in the default LoginForm
model of yii2/advanced/backend
, but unfortunately the isNumeric
validator simply doesn't kick in:
public function rules()
{
return [
// username and password are both required
[['username', 'password'], 'required'],
// username should be numeric
['username', 'isNumeric'],
// username should be numeric
['username', 'string', 'length'=>8],
// password is validated by validatePassword()
['password', 'validatePassword'],
];
}
/**
* Validates if the username is numeric.
* This method serves as the inline validation for username.
*
* @param string $attribute the attribute currently being validated
* @param array $params the additional name-value pairs given in the rule
*/
public function isNumeric($attribute, $params)
{
if (!is_numeric($this->username))
$this->addError($attribute, Yii::t('app', '{attribute} must be numeric', ['{attribute}'=>$attribute]));
}
/**
* Validates the password.
* This method serves as the inline validation for password.
*
* @param string $attribute the attribute currently being validated
* @param array $params the additional name-value pairs given in the rule
*/
public function validatePassword($attribute, $params)
{
if (!$this->hasErrors()) {
$user = $this->getUser();
if (!$user || !$user->validatePassword($this->password)) {
$this->addError($attribute, 'Incorrect username or password.');
}
}
}
我还尝试按照相关帖子中的建议添加场景 (https://stackoverflow.com/a/27817221/2037924) 但只有当我没有在场景中包含 password
字段时才有效(如显示的错误所示).
I also tried adding a scenario as suggested in a related post (https://stackoverflow.com/a/27817221/2037924) but that only worked (as in displayed the error) if I did not include the password
field in the scenario.
这是实现这一目标的好方法,还是您能想到更好的方法?
Is this a good way to achieve this at all, or can you think of a better way of doing it?
注意:我将 username
定义为 string
的原因是因为数字可能包含前导 0.
Note: the reason I define username
as string
is because the numbers may contain leading 0's.
推荐答案
在此处阅读有关验证的更多信息:http://www.yiiframework.com/doc-2.0/guide-tutorial-core-validators.html#number
Read more about the validations here: http://www.yiiframework.com/doc-2.0/guide-tutorial-core-validators.html#number
使用来自 yii2-basic 的联系表格这对我来说很好
This works fine for me using the contact form from yii2-basic
/**
* @return array the validation rules.
*/
public function rules()
{
return [
// name, email, subject and body are required
[['name', 'email', 'subject', 'body'], 'required'],
// email has to be a valid email address
['email', 'email'],
['subject', 'is8NumbersOnly'],
// verifyCode needs to be entered correctly
['verifyCode', 'captcha'],
];
}
public function is8NumbersOnly($attribute)
{
if (!preg_match('/^[0-9]{8}$/', $this->$attribute)) {
$this->addError($attribute, 'must contain exactly 8 digits.');
}
}
这篇关于Yii2:ActiveForm 字段数字,长度 =>8的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!