I need to override an abstract Block in Magento : app/code/core/Mage/Eav/Block/Adminhtml/Attribute/Edit/Options/Abstract.php
I need to add a function to this class similar as getOptionValues for a specific product type.
I tried to override by adding the same structure (folder creations and copy the Abstract.php file) in app/code/local/Mage/Eav/Block/Adminhtml/Attribute/Edit/Options/Abstract.php, but it seems not working.
Anyone can help me ? Am I missing something ? Do I need to create app/etc/modules XML or the app/code/local/Mage/Eav/etc XML ?
Thanks a lot !