not stored value in Mage::registry after admin session expire

Question

I have added this code Mage::register('test_checking_login', 1); after admin login and when expire session or delete session directory from var/ folder so Mage::registry('test_checking_login') displays null value why it does not display set value.How can I achieve this ?

Answer 1

I think you are confusing 2 concepts.
Session and Registry.

Session values are carried over from request to request until the session expires or until you remove them.

Registry values are some kind of global values but all in the same request.
As soon as the request is over your registry values are not available anymore.

I think you need

Mage::getSingleton('adminhtml/session')->setData('test_checking_login', 1)  

Answer 2

I'm not fully aware of your use case as your question is quite narrow but here's a shot.

From your comments on other answers you need this data to

• Persist after sessions are cleared (eg after logout)
• Persist Between separate requests
• And as you previously tried using the session, I assume this data is on a per-admin-user basis.

This really means it needs to be persistent storage (database) and linked to the current admin user.

There is a database field on the admin_user table called extra that I think you may be able to utilise. I don't think it's actually used anywhere in core magento, but you may want to watch out in case any of your extensions are using it.

Saving your data

$user = Mage::getSingleton('admin/session')->getUser();
if ($user instanceof Mage_Admin_Model_User && $user->getId()) {
    $extraData = $user->getExtra();
    if (!is_array($extraData)) {
        $extraData = array();
    }
    $extraData['test_checking_login'] = 1;
    $user->setExtra($extraData)->saveExtra($extraData);
}

Loading your data

$testCheckingLoginValue = 0;

$user = Mage::getSingleton('admin/session')->getUser();
if ($user instanceof Mage_Admin_Model_User && $user->getId()) {
    $extraData = $user->getExtra();
    if (is_array($extraData) && isset($extraData['test_checking_login']) {
        $testCheckingLoginValue = $extraData['test_checking_login']
    }
}

return $testCheckingLoginValue

Tech references

• Saving - https://github.com/OpenMage/magento-mirror/blob/magento-1.9/app/code/core/Mage/Admin/Model/User.php#L163
• Loading - https://github.com/OpenMage/magento-mirror/blob/magento-1.9/app/code/core/Mage/Admin/Model/Resource/User.php#L469

Answer 3

In Admin:

To save data

$value='my value';
Mage::getSingleton('adminhtml/session')->setData('name', $value);

To get it

Mage::getSingleton('adminhtml/session')->getData('name');

In Frontend:

To save data

$value='my value';
Mage::getSingleton('core/session')->setData('name', $value);

To get it

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

Answer 4

I have not tested the following but give it a go:

1. Using your custom login admin controller, set cookie when custom user role logs into system except admin role such as: Mage::getModel(‘core/cookie’)->set($name, $value);

2. Now, override adminhtml_controller_action_predispatch_start [I referred Admin/Controller/Action.php file to find out this event] method and set condition such as:

   if(Mage::getModel(‘core/cookie’)->get($name)):
      if(Mage::getSingleton('admin/session')->isLoggedIn()):
        //Do process
      else:
        $this->_redirect('*/set/your/route');
      endif;
   endif;
   

3. Delete cookie when custom user role logs out from system.

In this way, say for e.g. if session gets expired but cookie has been set, it will be checked using that event specific method. In case if admin logs in then we do not need to set cookie [that can be achieved by checking user role when loginAction gets called].

As I mentioned, I have not tested this approach, may be anyone else can suggest better approach. I hope this makes sense.