I wish to rewrite some methods in Mage_Catalog_Block_Product_Compare_List. What do I need to add to config.xml and what should my classname be?

  • The class name is technically arbitrary, though if you are following convention then (1) its definition will be autoloaded by the class name, and (2) it will be located in a Block subfolder in your module and therefore the name will begin with Namespace_ModuleName_Block.
    – benmarks
    Feb 17, 2014 at 0:54
  • So, since the name is .._Block_Product_Compare_List I should create a file named list.php in ../Namespace/Modulename/Block/Product/Compare/ and put my class there, is that correct?
    – fuumind
    Feb 17, 2014 at 5:49

1 Answer 1


Create block Namespace_Modulename_Block_Product_Compare_List and extend it from Mage_Catalog_Block_Product_Compare_List. Rewrite all methods you need.

Then in config.xml


Anyway here you can find more information about rewriting in magento.

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