Define a way to request a rootsite with fmt:url

[Francis J. Lacoste]

On the frontpage of distrorelease, I want to generate a link to the +addticket view of the distribution object. That view should be accessed using the 'Answers' rootsite. string:${context/distribution/fmt:url}/+addticket renders the link as https://lauchpad.net/ubuntu/+addticket

Maybe the requested rootsite could be passed as an additional path argument?

[James Henstridge (jamesh)]

Related to this, it would be nice to be able to pass in a rootsite to canonical_url().

One question is what behaviour we should have if the object in question has a rootsite specified? The three options I can think of are:

1. ignore the passed rootsite and use the object's rootsite
2. ignore the object's rootsite and use the passed rootsite
3. raise an exception

(2) could be bad if we have different traversal for different domains, since it might generate a bad URL. So I'd lean towards (3).

[Francis J. Lacoste (flacoste)]

canonical_url() now accept a rootsite argument (this is a relatively recent addition).

Its current bejaviour is 2. (ignore the object's rootsite and use the passed rootsite).

[Curtis Hovey (sinzui)]

PersonFormatterAPI supports fmt:link:<rootsite>. The magic is done in traverse() The magic could be pushed down to ObjectFormatterAPI

[Curtis Hovey (sinzui)]

I need to implement this to fix another bug.

[Curtis Hovey (sinzui)]

Fixed in launchpad devel r9115.

[Curtis Hovey (sinzui)]

Fixed released in launchpad-project 2.2.8.