Thread: Validating multiple sets of checkboxes as one

Ah, one small thing. The second argument should have a default value, so that it is compatible with the interface - that is, so that you can call it with just one argument. So:

Code:

public function isValid($value, $formData = null) {...}

That should work.

Brilliant, that's worked a treat. Thanks alot for your help!

You're welcome. Anyway, I came across a blog post about the topic of validating multiple elements with dependencies between them. The author has a point, stating that it would be logical that if validation depends on more than an element itself, it should be done in the form. This is some sample code to check two password fields ("password" and "repeat password" must be the same):

Code:

class MyForm extends Zend_Form {

    //...

    public function isValid($data) { 
        $ret = parent::isValid($data); 
  
        if ($this->password->getValue() != $this->repeatPassword->getValue()) { 
            $this->repeatPassword->addError("Passwords do not match"); 
            return false; 
        } 
        return $ret;
    }
}

Source: Zend_Form: walidacja rozbudowanych formularzy - Zend Framework, PHP, Webdesign :: MateuszTymek.pl