[fw-general] Processing Form Action With A Different Controller

[Matthew Ishii]

Hello, I have a small issue.

I would like to process the form action with a different controller
than the one containing the form object.

The problem for me is that I dont see how i can call the form
validation method on the form object from the other controller.

In other words, I have the main controller, IndexController.php.  It
generates the form object and sets the index view with the form.

I then want the action of that form to call the LoginController's
method 'login'.  I can easily access the forms values via POST object,
but how can i call the form objects validate method to make sure that
the filters and validators i specified for the form actually return
valid?

The whole reason I would like to split the functionality between the
two is because when the login and logout methods are contained within
the IndexController, the logout method has serious problems.  It
totally screws up the browser, it hourglasses and takes forever, only
to tell me the page cannot be displayed.  I dont quite understand why
this is, so I wanted to attempt to split the functionality over two
controllers.

Here is the IndexController as it stands:


<?php

require_once('Zend/Controller/Action.php');
require_once('Zend/Auth.php');
require_once('../database/adapters/AuthAdapter.php');

class IndexController extends Zend_Controller_Action
{


    public function indexAction()
    {
      $config = Zend_Registry::get('config');

      $this->view->title   = $config->english->login->title;
      $this->view->baseurl = $config->production->hosturl;
      $this->view->shead   = $config->english->login->subheader;
      $this->view->form    = $this->getLoginForm();

      $this->_helper->layout->disableLayout();
    }

    public function manualAction()
    {
      $this->_helper->layout->disableLayout();

    }

    public function logoutAction()
    {
      Zend_Auth::getInstance()->clearIdentity();
      return $this->_helper->redirector('index', 'index');
    }

    public function loginAction()
    {
      // Retreive Request
      $request = $this->getRequest();

      // Redirect to index if request is not POST
      if (!$request->isPost())
      {
        return $this->_helper->redirector('index');
      }

      // Get form and validate it
      $form = $this->getLoginForm();

      if (!$form->isValid($request->getPOST()))
      {
        // Form is not valid - re-set form and re-render index page
with filter/validator-set errors
        $this->view->form = $form;
        return $this->render('index');
      }

      // Get authentication adapter to check input variables
      $adapter = $this->getAuthAdapter($form->getValues());
      $auth    = Zend_Auth::getInstance();
      $result  = $auth->authenticate($adapter);

      if (!$result->isValid())
      {
        // Check reasons for authentication failure
        switch ($result->getCode()) {

          case Zend_Auth_Result::FAILURE:
            // Invalid input variables
            $form->setDescription('Invalid Username or Password');
            $this->view->form = $form;
            break;

          case Zend_Auth_Result::FAILURE_IDENTITY_AMBIGUOUS:
            // Identity confirmed : But requires a password update
            $form->setDescription('Access Credentials Expired -
Contact an Administrator for renewal');
            $this->view->form = $form;
            break;
        }

        $this->_helper->layout->disableLayout();
        return $this->render('index');
      }


      // We're authenticated!
      $this->_helper->redirector('index', 'search');

    }

    public function getLoginForm()
    {
      return new LoginForm(array('action' => '/index/login', 'method'
=> 'post'));
    }


    public function getAuthAdapter(array $params)
    {
      return new AuthAdapter($params['username'], $params['password']);
    }

}


class LoginForm extends Zend_Form
{

    public function init()
    {
      $this->setAttrib('name', 'login_form');

      $username = $this->addElement('text', 'username',
array('filters' => array('StringTrim', 'StringToLower'),
                                    'validators' => array('Alpha',
array('StringLength', false, array(3, 20))),
                                    'required' => true, 'label' =>
'Username', 'class' => 's_indentbottom'));


      $password = $this->addElement('password', 'password',
array('filters' => array('StringTrim'),
                                    'validators' => array('Alnum',
array('StringLength', false, array(6, 20))),
                                    'required' => true, 'label' => 'Password'));

      $login = $this->addElement('submit', 'login', array('required'
=> false, 'ignore' => true, 'label' => 'Log In', 'class' =>
'login_submit_button'));

      $this->setDecorators(array('FormElements', array('HtmlTag',
array('tag' => 'dl', 'class' => 'Zend_form')),
                           array('Description', array('placement' =>
'prepend')), 'Form'));

    }

}