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Editorial Team
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Asked: 2026-05-23T15:32:09+00:00

I am new to Magento and am facing a problem. In my categories, I

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I am new to Magento and am facing a problem. In my categories, I need to add a sort by option in the dropdown menu. So far it is easy, except that it is a discount percentage which is not stored in the DB but the calculation of price and discount_price.

I found how to query with the calculation, I just don’t know how to set the things together.

How to add a entry in the Dropdown menu?
How to link that entry with a specific module (if needed)?
What to override?

I am a bit confused and would really appreciate your inputs.

Edit

I have found a solution.

  • Created a module that overrides Mage_Catalog_Block_Product_List_Toolbar
  • Overrided setCollection method
  • Added fields to select via Zend ($collection->getSelect()->columns())
  • Created a new attribute in the backend whose keyword is the alias of our created field

That’s pretty much it.

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1 Answer

  1. Editorial Team

    I have found a solution.

    • Created a module that overrides Mage_Catalog_Block_Product_List_Toolbar
    • Overrided setCollection method
    • Added fields to select via Zend ($collection->getSelect()->columns())
    • Created a new attribute in the backend which keyword is the alias of our created field

    That’s pretty much it.

    • 0