Symonfy 1.4动态验证可能吗？

Question

我正在尝试创建一个表单,根据html表单字段中的select选项更改字段的验证.

例如:如果用户从下拉字段"options"中选择选项1,我希望字段"metric"验证为sfValidatorInteger.如果用户从字段"options"中选择选项2,我希望字段"metric"验证为sfValidatorEmail等.

所以在public函数内部configure(){我有switch语句来捕获"options"的值,并根据"options"返回的值创建验证器.

1.)如何捕获"选项"的值？我试过了:

$this->getObject()->options
$this->getTaintedValues()

目前唯一适用于我的是但它并不是真正的MVC:

$params = sfcontext::getInstance()->getRequest()->getParameter('options');

2.)一旦我捕获了该信息,我如何将"度量"的值分配给不同的字段？("metric"不是db中的真实列).所以我需要将"metric"的值分配给不同的字段,例如"email","age"......目前我正在这样的post验证器处理这个,只是想知道我是否可以在configure中分配值( ):

$this->validatorSchema->setPostValidator(new sfValidatorCallback(array('callback' => array($this, 'checkMetric'))));

public function checkMetric($validator, $values) {

}

谢谢!

Answer 1

您想使用帖子验证器.尝试在表单中执行以下操作:

public function configure()
{
  $choices = array('email', 'integer');
  $this->setWidget('option', new sfWidgetFormChoice(array('choices' => $choices))); //option determines how field "dynamic_validation" is validated
  $this->setValidator('option', new sfValidatorChoice(array('choices' => array_keys($choices)));
  $this->setValidator('dynamic_validation', new sfValidatorPass()); //we're doing validation in the post validator
  $this->mergePostValidator(new sfValidatorCallback(array(
    'callback' => array($this, 'postValidatorCallback')
  )));
}

public function postValidatorCallback($validator, $values, $arguments)
{
   if ($values['option'] == 'email')
   {
     $validator = new sfValidatorEmail();
   }
   else //we know it's one of email or integer at this point because it was already validated
   {
     $validator = new sfValidatorInteger();
   }
   $values['dynamic_validation'] = $validator->clean($values['dynamic_validation']); //clean will throw exception if not valid
   return $values;
}