[Zope] Calling constructor from another product??

[Shalabh Chaturvedi]

> Now my class a prints out a link to
>  /FOO/XY_add to allow users to add new instances of XY.

You should try:

  manage_addProduct/FOO/XY_add

in the link, instead of

  /FOO/XY_add

A url such as http://.../my/folderish/manage_addProduct/FOO/XY_add calls 
the zclass constructor for adding an XY object under the 'folderish' folder. 
You can see this if you open the 'contents' management screen of a folder in 
a new window and try to add any object.

> Is my Link false (I tried several other things aswell) or
> do I have to set any permissions?

This doesn't seem to be the problem (yet). If you don't have permissions you
would see the http authentication login box.

Hope this helps,

Shalabh