How to verify password field in zend form?

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

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 2

$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 3

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.

Answer 4

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 5

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 6

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