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changing core function without losing the update feature
Total Posts:  70
Joined:  2008-01-27


i try to change the way magento generates prices, but iam really unsure how so extend magento without destroying the core / rewrite this on every update.

what i want to do:
I want to extend Bundled items with values for Height and Width which count for the Prices of the Product. For this task i wanted to Build the multiplication of the values

and use this as some kind of Extra Qty (quadratic meters).
I cant use
price price
(what would be the standard of magento)
This Qty can than be handled like a normal percent Qty for the Price. 

If someone got any idea how i can extend the Bundled items with this feature as a external module, please contact me / write in this thread.

Thanks in advice!

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