Zend Form add error message

I did register form in with zend form

开发者_Go百科$password = new Zend_Form_Element_Password('password');
$password->setLabel($this->_translate->_("Password:"))
    ->setRequired(true)
    ->addValidator('stringLength', true, array(4, 32));

$confirmPassword = new Zend_Form_Element_Password('confirmpassword');
$confirmPassword->setLabel($this->_translate->_("Confirm Password:"))
                        ->setRequired(true);

I control password and confirmpassword in controller. if password and confirmpassword don't match then add error message under confirmpassword textbox. how i do?

---

Override isValid in your form

/**
     * Validate the form, check passwords.
     *
     * @param  array $data
     * @return boolean
     */
    public function isValid($data) {
        $valid = parent::isValid($data);
        if ($this->getValue('password') !== $this->getValue('password2')) {
            $valid = false;
            $this->password2->addError('Passwords don\'t match.');
        }

        return $valid;
    }

---

The concept basically boils down to adding a Zend_Validate_Identical validator to the 'confirmpassword' field, using the data from the $this->_request->getParam('password') to test against. I use a custom method on an extended Zend_Form to process the post data from all my forms, it isn't an exact solution for you, but perhaps my code from my "EditUser" form can point you in the right direction.

From the controller:

// $form is a MW_Form_EditUser.

if ($this->_request->isPost() && $form->process($this->_request->getPost()))
{
   // successful form - redirect or whatever here
}

From the MW_Form_EditUser class:

public function process(array $data)
{
 // gets a copy of the user we are editing
 $user = $this->getEditable();
 // checks to see if the user we are editing is ourself
 $isSelf = ($user->id == MW_Auth::getInstance()->getUser()->id);

 // if the new_pass field is non-empty, add validators for confirmation of password
 if (!empty($data['new_pass']))
 {
   $this->new_pass2->setAllowEmpty(false)->addValidator(
       new Zend_Validate_Identical($data['new_pass'])
     );
   if ($curpass = $this->current_password) $curpass->setAllowEmpty(false);
 }

 if ($this->delete && !empty($data["delete"])) {
   $this->delete->setValue(true);
   $user->delete();
   return true;
 }

 if ($this->isValid($data))
 {
   /// saves the data to the user
   $user->email = $this->email->getValue();
   $user->name = $this->name->getValue();
   if ($password = $this->new_pass->getValue()) $user->password = $password;
   if (!$isSelf)
   {
     if ($this->super->getValue()) {
       $user->setGroups(array(MW_Auth_Group_Super::getInstance()));
     } else {
       $user->setGroups(array(MW_Auth_Group_User::getInstance()));              
     }                    
   }
   $user->save();
   return true;
 }
 return false;
}

---

//inside form

public function isValidPSW($data) {
        $valid = parent::isValid($data);
        if ($data['pswd'] !== $data['pswd2']) {
            $valid = false;
            $this->pswd->addError('Passwords don\'t match.');
        }
        return $valid;
    }

---

Using Zend_Validate_Identical is a good solution for you by Zend. I will give you another choice. jQuery. When you are using Zend_Validate_Identical form will go to the server and server will validate it. If passwords are not same it will return an error message. If you use jQuery form will not go to the server unless passwords are same.