Developer forum

 Hello Remi,

 This is with a OrderTemplateExtender

public override void ExtendTemplate(Template Template, Dynamicweb.eCommerce.Frontend.TemplateExtenderRenderingState RenderingState)
        {
            // Only process requests from the front-end
            if (Dynamicweb.Permissions.Security.Environment.IsInBackend())
                return;
 
            if (RenderingState == Dynamicweb.eCommerce.Frontend.TemplateExtenderRenderingState.Before)
            {
 
                foreach (OrderLine orderLine in Order.OrderLines)
                {
		  if (orderLine.Quantity > 99)
                  {
                    orderLine.Quantity = 99;
                    orderLine.Save();
                  }
                }
Example of values:
Before orderline save=
orderLine.Order.Price {€ 533,25}
orderLine.Order.TotalPriceFormatted "€ 533,25"
orderLine.Order.PriceBeforeFees {€ 500,25}
 
After orderline save=
orderLine.Order.Price {€ 533,25}
orderLine.Order.TotalPriceFormatted "€ 533,25"
orderLine.Order.PriceBeforeFees {€ 495,25}



Only PriceBeforeFees is updated.



Another thing which i find strang is that i am going twice through:

if (RenderingState == Dynamicweb.eCommerce.Frontend.TemplateExtenderRenderingState.Before)

This is not a big problem but a waste of processing. I have seen this before with other template extenders. Can we build a better expression to process once?

I am using Dynamicweb 19.2.1.6 (hotfix)
maybe it is isolated in this version.

Kind regards,
Remi

 Hello Remi,

Could you to try this is extender?

 That works for the template displaying totalprice.

But if i inspect the objects after saving(orderline.save) the totalprice is still incorrect as i described above.

Have you debugged and watched the item.IncreasedLine.Order.Price before and after changing the quantity?

Kind regards,
Remi

I have a question about this notifier:

Dynamicweb.Notifications.eCommerce.Cart.Line

.Increased

Can i access the template object and add tags? As in my case i want to inform the user which product the quantity has been maxed.

With OrderTemplateExtender i could just add a msg in a template tag and display this.

Thanks.
Remi.

Set orderline quantity

The code from Dmitri works fine. But to able to switch i also need access to the template object and add tags.

Hi Remi, there are few links that can help you to implement OrderTemplateExtender

http://engage.dynamicweb-cms.com/Show-Article-361.aspx?PID=2472&ArticleID=161

http://engage.dynamicweb-cms.com/Show-Article-361.aspx?PID=2472&ArticleID=153

 Oke this not going in the right direction. Let me rephrase the current situation.
----------------------------------
1.
I have a ordertemplate extender that enforces a maximum on quantity.

This does not work completely as it should.
The quantity works but the order total price is still incorrect.
After a second reload of the cart it shows the updated total price.
----------------------------------

2. I use Dynamicweb.Notifications.eCommerce.Cart.Line.Increased

This works great i can enforce a maximum on quantity and total price is visible and correct in the template.
But i do not know if i can access the template object because i also need to set template tags to inform the user.
----------------------------------

Who can tell me what i should do?
Fix scenario 1, i think it is a bug because order total price is not recalculated after updating quantities.
Or explain how to access the template object in scenario 2.

Kind regards,
Remi 
 

Hi Remi,

I haven't tried it, but can't you combine both? E.g. recalculate in the subscriber, add a key to HttpContext.Items and then in the extender see if the key esists and render the apprpriate tags? I am not 100% sure, but I think it would make sense if the subscriber fired before the extender starts extending.

I realize this is a workaround, and the problem may need to be fixed in Dynamicweb, but it might work for you.

Kind regards,

Imar

 
I think you need to store the data in a session variable and fetch it from there in your template extender.

HttpContext.Current.Items is the usual way to share data between subscribers and extenders, but it will not work in this case because ecom makes a redirect before the extender is called and the data stored in items is no longer available.

/Morten

These are all workarounds. Which is fine for the time being.
But from Dynamicweb i expect proper solutions eventually.

Maybe it is better to create a case and ask for a fix on the order object. Even a simple recalculate method would suffice.
I mean orderlines are recalculated and quantities are immediately reflected but is is not possible to recalc the order total i can not believe that.

Not to leave the wrong impression i appreciate all the feedback. Thanks :)

Kind regards,
Remi

>> HttpContext.Current.Items is the usual way to share data between subscribers and extenders, but it will not work in this case because ecom makes a redirect

Ha, yes, you're absolutely right. Thanks for the correction.

Cheers,

Imar

 Hi Dmitri,

I tried Dynamicweb.eCommerce.Frontend.Cart.CartCatch.SaveCart(); and it works great. :)
Thanks for looking into the issue, this is what i needed to know.
This is valuable info.
I looked it up in the api documentation which states:

SaveCart Method: Saves the cart id to a cookie

I guess the cart is already saved to a cookie and in my case i need to update the cart cookie because of changes to the cart.

Kind regards,
Remi

 

FYI follow up on this thread is located here: http://developer.dynamicweb-cms.com/forum.aspx?ThreadID=28036