I'm working on a module where I need to modify the behavior of the getTracking() method in a shipping method carrier model. For example let's take this default one: Mage_Usa_Model_Shipping_Carrier_Dhl
My requirement is to modify the tracking result returned by this method.
I have two solutions in mind but I'm not sure if one is better or the other (or maybe there's a 3rd solution even better )
Solution 1: classic rewrite
Rewrite the model and the method and add my custom modification before the return statement.
The code would look like this:
public function getTracking()
{
$result = parent::getTracking();
// My modifications here
return $result;
}
Solution 2: rewrite and event dispatched
Rewrite the model and the method. Get the original result with parent::getTracking, dispatch a custom event and return the result. Use an observer to modify the results.
The code would look like this:
public function getTracking()
{
$result = parent::getTracking();
Mage::dispatchEvent('my_custom_event', array('result' => $result));
return $result;
}
To me, the second solution is better but I don't feel good using rewrites.
So my questions are:
- Which one of those solutions is the best ?
- Is there a dynamic event I'm not aware of I could observe instead of doing all this ?
- Any other suggestions ?
