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Can't add custom discount order line

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Judy Zhang
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Posted on 01/05/2013 15:53:15

Hej,

 

I have a code segment  which is used to add a custom discount orderline to the current cart.

 

It worked before, but doesn't work now.

The "Total Discount" order line can't be found from the database.

 

I can't see the problem, is there anyone can find the reason?

I have tried to change the type from "discount" to "product", and added productID, it works fine.

 


Replies

 
Judy Zhang
Posted on 01/05/2013 15:55:08
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The version of  Dynamicweb is 8.2.0.0.

 
Jeppe Eriksson Agger Dynamicweb Employee
Jeppe Eriksson Agger
Posted on 02/05/2013 09:38:58
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Hi Judy,

 

Where/when is this code executed?

 

- Jeppe

 
Judy Zhang
Posted on 02/05/2013 09:47:14
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Hej Jeppe,

Just when a user click a button, execute this code.

1. var newCart = new Order();

2. if(Dynamicweb.eCommerce.Common.Context.Cart !=null)  Dynamicweb.eCommerce.Common.Context.Cart.Delete();

3.Add orderlines to the newCart

4.Add this "Total discount" orderline to the newCart.

5.Dynamicweb.eCommerce.Common.Context.SetCart(newCart);

1,2,3,5 works fine, just missing "Total discount" orderline.

 

 

 
Jeppe Eriksson Agger Dynamicweb Employee
Jeppe Eriksson Agger
Posted on 02/05/2013 09:52:35
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Maybe I'm missing the point, but it seems to me that you're trying to create a new order with a single line, namely the discount line. This produces an order with a negative value, which--to me--does not make sense.

 

Can you post your entire code block?

 
Jeppe Eriksson Agger Dynamicweb Employee
Jeppe Eriksson Agger
Posted on 02/05/2013 10:00:29
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This post has been marked as an answer

Also bear in mind, that discounts are recalculated very often in the frontend--at least every time the cart is rendered. So if you only create this discount line once then there's a large probability that it's being removed right after.

 

The recommended way to create a custom discount is to create a custom Sales Discount Provider. You can read more about Sales Discount Providers here: http://developer.dynamicweb-cms.com/documentation/for-developers/ecommerce/extensibility/providers/sales-discount-providers.aspx

Votes for this answer: 1
 
Judy Zhang
Posted on 02/05/2013 10:09:02
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Ok, you are right. I can't just create a discount line like this. 

Thank you very much.

I will try other ways.

 

 

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