freeproduct | Magento Extension : Add gifts | Ecommerce library
kandi X-RAY | freeproduct Summary
kandi X-RAY | freeproduct Summary
This extensions allows you to add gifts to your cart. To do allow this, a new action "add a gift" is added to the cart price rules. The development and the function is described in the following two websites: - -
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QUESTION
My Cart looks like this
What should be the best approach to do calculation of all cells and sums up total Amount label
Cart Working like this :
Increment in cell's item doubles the value of price label but when i dequeue new cell it already has that increment value
When tried to work with custom delegate , Delegate always shows nil
What should I do ? why my delegate is always nil ?
TableViewCell
...ANSWER
Answered 2020-Mar-12 at 10:47As @joakim said in comment you are doing calculations in a UI! and it's not a correct way
When a UITableView scrolls every cell will reload because of reusing and every cell will lose its state because it loads again. so you must store state of each cell in a Model and pass it to your cell each time a cell loads.
As you requested The Best approach would be to use a ViewModel or a Presenter to store state of a View (here your cell) and in every load you feed that View (for example in your cellForRow) with the stored States or Properties
QUESTION
tl;dr: is it possible to use any of the lens
family of abstractions to wrap/unwrap any arbitrary newtype
(that provides an instance for such abstractions)?
I'll motivate my question by a simple example, based on a true story. Suppose I define the following newtype
:
ANSWER
Answered 2017-Sep-26 at 13:55The "problem" is that you're using Wrapped
, which is really meant to be a convenience pattern synonym and not a wrapping "constructor". Because it's designed to support polymorphic wrapping, you need to assert that your type can be rewrapped:
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