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i will not direct hack in the core of Magento and search for a solution to overload the “Mage_CatalogSearch_Model_Advanced” Model.
I use the Magentoserach and found a few informations for this topic but this not work for me :(
My Modul is CatalogSearchCustom and is saved in /app/local/Mage/CatalogSearchCustom
the xml you put in Mage_All.xml is better saved in its own file - Mage_Catalogsearchcustom.xml (in the same directory as Mage_All.xml). As you said we shouldn’t overwrite any core files. I am not sure whether this will help with your problem though.
With the Mage_Catalogsearchcustom.xml is my fault. But my module don’t override the Class Mage_CatalogSearch_Model_Advanced. I am trying to customize some code (the method getProductCollection() as example) in this Class.
Sorry was my fault in the template. Tn this one templatefile i don’t use getModel but “new Mage_CatalogS();”