Pass data from view to block

Question

I'm trying to pass a message from view to layout by using a model. This does not work when using _redirect(); I know there is a magento core functionality, but I'd like to understand why my custom solution does not work.

$status = Mage::getSingleton('custom/statusobject');
$status ->setMessage('Error:' + $message);

//$status ->getMessage(); Works fine

$this->_redirect('*/*/');

public function indexAction()
{
   $status = Mage::getSingleton('custom/statusobject');
   $status ->getMessage(); // does not exists
}

**** EDIT **** This does also not work for session

in controller

Mage::getSingleton('core/session')->setError('ERROR');
session_write_close();
$this->_redirectUrl('*/*/');
return;

In my block

$statusobject = Mage::getSingleton('core/session');
$message =$statusobject->getMessages()->getItems();

print_r($message); // empty array

I dont know why my messages are lost after redirect

Answer 1

You need to save() for carry data.

$status = Mage::getSingleton('custom/statusobject');
$status ->setMessage('Error:' + $message);
$status->save();
//$status ->getMessage(); Works fine
$this->_redirect('*/*/');

this will works when message is field of custom/statusobject .

Or better idea to sue core/session variable to carry value on new page.

Mage::getSingleton('core/session')->setMyMessage('Error:' + $message);

fetch Data on new page using

Mage::getSingleton('core/session')->getMyMessage();

Answer 2

i think solution you need is register. that are use in magento to carry data between controller to block or view. because session need to reload the page.

you can set register

Mage::register('name-of-registry-key', $your-data);

get registry

$var = Mage::registry('name-of-registry-key');