How to verify password field in zend form? - zend-framework

Question

In my form, I'm trying to verify that the user fills in the same value both times (to make sure they didn't make a mistake). I think that's what Zend_Validate_Identical is for, but I'm not quite sure how to use it. Here's what I've got so far:
$this->addElement('password', 'password', array(
'label' => 'Password:',
'required' => true,
'validators' => array(
'Identical' => array(What do I put here?)
)
));
$this->addElement('password', 'verifypassword', array(
'label' => 'Verify Password:',
'required' => true,
'validators' => array(
'Identical' => array(What do I put here?)
)
));
Do I need it on both elements? What do I put in the array?

Answer 1

For what its worth, support for comparing two identical form fields within a model was added to the 1.10.5 release. I wrote up a short tutorial on the matter, which you can access via the below link, but the bottom line is that the Zend_Validate_Identical validator has been refactored to accept a form field name as input. For instance, to compare the values of form fields pswd and confirm_pswd, you'll attach the validator to confirm_pswd like so:
$confirmPswd->addValidator('Identical', false, array('token' => 'pswd'));
Works like a charm.
See Validating Identical Passwords with the Zend Framework for a more complete example.

Answer 2

I can't test it at the moment, but I think this might work:
$this->addElement('password', 'password', array(
'label' => 'Password:',
'required' => true
));
$this->addElement('password', 'verifypassword', array(
'label' => 'Verify Password:',
'required' => true,
'validators' => array(
array('identical', true, array('password'))
)
));

Answer 3

After two days I found the right answer follow me step by step:
step 1:
create PasswordConfirmation.php file in root directory of your project with this path:
yourproject/My/Validate/PasswordConfirmation.php with this content below:
<?php
require_once 'Zend/Validate/Abstract.php';
class My_Validate_PasswordConfirmation extends Zend_Validate_Abstract
{
const NOT_MATCH = 'notMatch';
protected $_messageTemplates = array(
self::NOT_MATCH => 'Password confirmation does not match'
);
public function isValid($value, $context = null)
{
$value = (string) $value;
$this->_setValue($value);
if (is_array($context)) {
if (isset($context['user_password'])
&& ($value == $context['user_password']))
{
return true;
}
}
elseif (is_string($context) && ($value == $context)) {
return true;
}
$this->_error(self::NOT_MATCH);
return false;
}
}
?>
step 2:
Add two field in your form like this:
//create the form elements user_password
$userPassword = $this->createElement('password', 'user_password');
$userPassword->setLabel('Password: ');
$userPassword->setRequired('true');
$this->addElement($userPassword);
//create the form elements user_password repeat
$userPasswordRepeat = $this->createElement('password', 'user_password_confirm');
$userPasswordRepeat->setLabel('Password repeat: ');
$userPasswordRepeat->setRequired('true');
$userPasswordRepeat->addPrefixPath('My_Validate', 'My/Validate', 'validate');
$userPasswordRepeat->addValidator('PasswordConfirmation', true, array('user_password'));
$this->addElement($userPasswordRepeat);
now enjoy your code

Answer 4

class My_Validate_PasswordConfirmation extends Zend_Validate_Abstract
{
const NOT_MATCH = 'notMatch';
protected $_messageTemplates = array(
self::NOT_MATCH => 'Password confirmation does not match'
);
public function isValid($value, $context = null)
{
$value = (string) $value;
$this->_setValue($value);
if (is_array($context)) {
if (isset($context['password_confirm'])
&& ($value == $context['password_confirm']))
{
return true;
}
} elseif (is_string($context) && ($value == $context)) {
return true;
}
$this->_error(self::NOT_MATCH);
return false;
}
}
http://framework.zend.com/manual/en/zend.form.elements.html

Answer 5

$token = Zend_Controller_Front::getInstance()->getRequest()->getPost('password');
$confirmPassword->addValidator(new Zend_Validate_Identical(trim($token)))
->addFilter(new Zend_Filter_StringTrim())
->isRequired();
Use the above code inside the class which extends zend_form.

Answer 6

I was able to get it to work with the following code:
In my form I add the Identical validator on the second element only:
$this->addElement('text', 'email', array(
'label' => 'Email address:',
'required' => true,
'filters' => array('StringTrim'),
'validators' => array('EmailAddress')
));
$this->addElement('text', 'verify_email', array(
'label' => 'Verify Email:',
'required' => true,
'filters' => array('StringTrim'),
'validators' => array('EmailAddress', 'Identical')
));
And in the controller, just before calling isValid():
$validator = $form->getElement('verify_email')->getValidator('identical');
$validator->setToken($this->_request->getPost('email'));
I don't know if there is a more elegant way of doing this without having to add this code to the controller. Let me know if there is a better way to do this.

Answer 7

With Zend Framework 1.10 the code needed to validate the equality of two fields using Zend Form and Zend Validate is:
$form->addElement('PasswordTextBox',
'password',
array('label' => 'Password')
);
$form->addElement('PasswordTextBox',
'password_confirm',
array('label' => 'Confirm password',
'validators' => array(array('Identical', false, 'password')),
)
);
You can notice, in the validators array of the password_confirm element, that the Identical validator is passed as array, the semantics of that array is: i) Validator name, ii) break chain on failure, iii) validator options
As you can see, it's possible to pass the field name instead of retrieving the value.