How do you effectively override the Zend_Form::isValid() method?
Our usage, we have a EditProfileForm that requires a unique email address.
Since there are no real built-in validators to handle this, we decided to
simply override the Zend_Form::isValid() and manually set the email field as
an error...
<?php
class EditProfileForm extends AppForm // extends Zend_Form
{
public function isValid($data)
{
parent::isValid($data);
if (!$this->getElement('email')->hasErrors()) {
$u =
Doctrine_Core::getTable('User')->findOneByEmail($this->getValue('email'));
if (!empty($u) && ($u->id !== $this->getModel()->id)) {
$this->getElement('email')->addError(sprintf('The email
\'%s\' is already registered by another user.', $this->getValue('email')));
}
}
return ($this->isErrors() === false);
}
}
?>
But, this doesn't work. Zend_Form::isErrors() doesn't dynamically loop
through elements to get errors (which means the form doesn't get
notification of us adding an error the 'email' element). Plus, if you call
parent::isValid($data) after we set the email error, they are reset since
Element::isValid() resets the errors.
So, again, what is the best way to handle this situation?
We came up with the solution of...
<?php
class EditProfileForm extends AppForm // extends Zend_Form
{
public function isValid($data)
{
$isValid = parent::isValid($data);
// Try e-mail.
if (!$this->getElement('email')->hasErrors()) {
$u =
Doctrine_Core::getTable('User')->findOneByEmail($this->getValue('email'));
if (!empty($u) && ($u->id !== $this->getModel()->id)) {
$this->getElement('email')->addError(sprintf('The email
\'%s\' is already registered by another user.', $this->getValue('email')));
$isValid = false;
}
}
return $isValid;
}
}
?>
Which works as expected, but wanted to see if there was a better way to do
this.
Thanks!
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