PrestaShop/PrestaShop — pull request #2254 by prestamodule (2014-11-06 13:45:33+00:00)
Title: [*] CORE : Add new hook actionBeforeCartUpdateQty on Cart

In order to block some cart actions, we must have an input before Cart::updateQty() is processed.
It's way better than doing the job after actionCartSave hook so the cart is only updated (or not) one time.