Developer forum

 as far as i understand the "If Defined" then it checks for something or nothing.

So if you in the case of False, passes en empty string, then "If Defined"  will pick it up.

setting the the tags something like this should work. 

if True
    myTestTag = "true"

if false
    myTestTag = ""

/kenneth

Try using the notification Dynamicweb.Notifications.Standard.Page.OnOutput which is called before if defined is parsed...

1. Notify OnOutput
2. Parse If Defined
3. Set standard global tags
4. Notify AfterOutput

True global tags will be available in 7.2 with a new notification (OnGlobalTags), but OnOutput should do just fine in this case.

Also, since version 19.1.2.1, you can just use the standard Template.SetTag(string Name, bool Value) which will output "true" when true and string.empty when false.

BR.
Morten

Hey Kenneth,

Thanks for your reply,

I am fully aware of how "If Defined" works, which is also why I only publish the tag if the criterion is met, otherwise there is no tag. But this still does not make "If Defined" work.

Jesper

Ok.. better paste my code :-)


[Subscribe(Dynamicweb.Notifications.Standard.Page.AfterOutput)]
    public class NotificationGlobalTags : NotificationSubscriber
    {

        public override void OnNotify(string notification, object[] args)
        {
            if (args.Length > 0)
            {
                try
                {
                    if (HttpContext.Current.Session["SelectedCountry"] != null)
                    {
                        if (HttpContext.Current.Session["SelectedCountry"].ToString() == "int")
                        {
                            Dynamicweb.Templatev2.Template t = (Dynamicweb.Templatev2.Template)args[0];
                            t.SetTag("NIQ:CountrySelector.Global.DisableShopping", true.ToString());
                        }
                    }
                }
                catch (Exception e)
                {
                    Base.wa("Error casting args to type Template: " + e.InnerException);
                }
            }
        }
    }

 

Notifications.Standard.Page.OnOutput  doesnt work either.

and just to make it perfectly clear.

... when I say it doesnt work, I am referring to "If defined" on a template sub structure, e.g. a product template. I still cant ask If Defined on the so-called "global tag" from the subscriber. The tag works, meaning it renders its contents on the product template as expected when the criterion is met, but I just cant ask "If defined" on it.

Sincerely,

Jesper

 

 If Defined checks if the VALUE is defined - not the tag. The tag needs to be available in both cases, but with an empty value when false... just like kenneth wrote.

/Morten

Hey Morten,

Thanks for your reply, but that really doesnt make a difference.

If I make sure (setting browser language) that I will hit "International" setting, which sets "Int", and I know for sure that the tag is set, because I can write the tag VALUE to the browser on a product template, can we then not agree on, that if I wrap the tag in "If Defined", it ought to work too on the product template, and the VALUE of the tag should still be output??

/J

Can you post the template?

 if you want to make a golbal tag, then you just have to use a naming convention
Global tags has to start with "Global:"

fx. "Global:myGlobaltag"

then you can set the tag in any template you want, and it will be parsed by the template engine

/kenneth

This is from a ProductList template:

<!--@LoopStart(Products)-->
 a<!--@NIQ:CountrySelector.Global.DisableShopping-->
 <!--@If Defined(NIQ:CountrySelector.Global.DisableShopping)-->
  b<!--@NIQ:CountrySelector.Global.DisableShopping-->
 <!--@EndIf(NIQ:CountrySelector.Global.DisableShopping)-->
<!--@LoopEnd(Products)-->


aTrue will render, while the "b" and that tag value inside "If Defined" does not.

/J

Oh, its inside a loop :)

Does it work outside the loop?

Have you tried setting the tag in a ProductTemplateExtender?

/Morten

Just tried:

<!--@LoopStart(Products)-->
<!--@LoopEnd(Products)-->

  a<!--@NIQ:CountrySelector.Global.DisableShopping-->
 <!--@If Defined(NIQ:CountrySelector.Global.DisableShopping)-->
  b<!--@NIQ:CountrySelector.Global.DisableShopping-->
 <!--@EndIf(NIQ:CountrySelector.Global.DisableShopping)-->

Behaves exactly the same, outputs:

aTrue

Strange. It should work with the ProductTemplateExtender.

Did you try using the tag prefix "Global:" as Kenneth suggested?

Global:CountrySelector.Global.DisableShopping

/Morten

Holy cr..!

IT WORKED :-)

ok... so if a tag is to be truely global, the tag name MUST begin with "Global:tagname".

Thanks Kenneth and Morten for your patience and energy.

Regards,

Jesper