Yii - 验证自定义字段

Question

我使用的模型不包含属性＆＃39;国家＆＃39;因为我通过多对多关系将它保存在关系模型中。当我在视图中创建表单时，我会使用多个select for custom field＆＃39; countries＆＃39;。如何在var result = nextWhile(cell, cell_is_something); 上的模型中验证它？

Answer 1

// protected/extensions/validators/CountryValidator.php
class CountryValidator extends CValidator
{

/**
 * @inheritdoc
 */
protected function validateAttribute($object, $attribute)
{
    /* @var $object CFormModel */
    // for example check exist countryId in db or no
    // you can use any other logic
    $country = Country::model()->findByPk($object->$attribute);
    if (null != $country) {
        $object->addError($attribute, 'country not found');
    }
}
...

// in your model
public function rules()
{
    return array(
        array('countryId', 'ext.validators.CountryValidator'),
         ...

// in config
'import' => array(
    'ext.validators.*',
    ...

使用方法：

$yourModel = new YourModel();
$yourModel->countryId = -1;
$yourModel->validate();
print_r($yourModel->getErrors()); die();