How to query a Web Link type of field

[Kyle Poland]

I have a custom field of type Web Link on Portfolio Items called "SN Change Request Link".

I am trying to write a query to find all portfolio items (Initiatives in this case) that have a value in this field. I have tried several things and none of these are working:
(SNChangeRequestLink.ID != null)
(SNChangeRequestLink.Name != null)
(SNChangeRequestLink != null)

Rally displays the following error when I try any of these:
"Could not parse: Attribute "SNChangeRequestLink" on type Artifact is not allowed in query expressions."

How can I query based on this type of field?

Thanks 
-kyle

[David LeDeaux]

Hi Kyle,

You will probably need to add a c_ to your weblink field.  So for example if I look at a weblink field directly in the API in my environment I see this:

So accessing the ID would be c_WebLink.LinkID and accessing the text would be c_WebLink.DisplayString