Magento: How to pass a variable from block to a Model

Question

I am using an extension where I need to pass the variable is moving from block class back to model, I have used session it works sometime but not uniformly, Is there any other way to pass it,

Thanks in advance,

Answer 1

try using Magento's Registry Pattern

The three registry methods are

Mage::register   
Mage::unregister   
Mage::registry 

The register method is how you set a global-like variable.

Mage::register('some_name', $var);

Then, later in the request execution, (from any method), you can fetch your variable back out

$my_var = Mage::registry('some_name');

Finally, if you want to make you variable unavailable, you can use the unregister method to remove it from the registry.

Mage::unregister('some_name');

Source

Answer 2

If you can use the Model as a singleton, you can try this:

 Mage::getSingleton('yourmodule/yourmodel')->setStuff('xxxx');

and later

 Mage::getSingleton('yourmodule/yourmodel')->getStuff();

if you don't know what singletons are you should maybe try the registry approach from epynic to prevent problems.