[英]Yii2 validation rule for array
I've an attribute in model which I want to validate in such a way that - It must be an array and must have 3 element, also every element inside array must be a string. 我在模型中有一个属性,希望以这种方式进行验证-它必须是一个数组,并且必须具有3个元素,而且数组中的每个元素都必须是一个字符串。 Currently I'm using. 目前我正在使用。
['config', 'each', 'rule' => ['string']]
You could simply use a custom validator, eg : 您可以简单地使用自定义验证器,例如:
['config', function ($attribute, $params) {
if(!is_array($this->$attribute) || count($this->$attribute)!==3){
$this->addError($attribute, 'Error message');
}
}],
['config', 'each', 'rule' => ['string']]
Read more about creating validators . 阅读有关创建验证器的更多信息。
You can add a custom
validation
rules like below: 您可以添加custom
validation
规则,如下所示:
public function rules()
{
return ['config','checkIsArray'];
}
public function checkIsArray($attribute, $params)
{
if (empty($this->config)) {
$this->addError('config', "config cannot be empty");
}
elseif (!is_array($this->config)) {
$this->addError('config', "config must be array.");
}
elseif (count($this->config)<3) {
$this->addError('config', "config must have 3 elements");
}
else {
foreach ($this->config as $value) {
if (!is_string($value)) {
$this->addError('config ', "config should have only string values.");
}
}
}
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.