Is there a single event that I can create an observer for that gets fired when a product is loaded either using getModel or through a collection?

The exact use case i have is that i have a custom product attribute, but in order to return the correct result, further logic needs to be done which is based on other factors? I am then planning to compute this logic after load and store it in another member. If someone has an alternative i would be also grateful for this advice.

3 Answers 3


You don't need an observer to do this. You can use the attribute backend_model to handle your logic.

If you specify a backend_model with your attribute and you extend the Mage_Eav_Model_Entity_Attribute_Backend_Abstract class within your backend model class you can use the afterLoad, beforeSave, afterSave, beforeDelete or afterDelete methods to execute your own logic.

Using the backend_model is the correct way to implement this sort of logic and is how native Magento attributes do it where they have similiar requirements.


Sadly it looks like you might have to use two here :(

Product: catalog_product_load_after
Collection: catalog_product_collection_load_after

The collection event gives you a 'collection' object to work with. You can loop through this and make your changes on a product level. If you move your code into a helper or use the same Observer.php for both events then you should be able to limit the amount of duplicate code.




See https://stackoverflow.com/questions/15763829/magento-load-product-event-observer

  • that wont work for products loaded through a collection May 19, 2013 at 22:13

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