I had created a custom model which uses ORM, i tried out “Weblog” example in the link http://www.magentocommerce.com/knowledge-base/entry/magento-for-dev-part-5-magento-models-and-orm-basics and i was able to retrieve values from db using collection, but i cannot use functions like “->addAttributeToSort(‘name’, ‘ASC’);” with my collection object.
Are these functions specific only to product model such as “catalog/product”? if so how could i use such filtering capabilities to my custom function?
Thank you very much..!!