Help with database list classes

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Help with database list classes

Robin Fernandes
Hi all,

I'd like a property in a class to represent a list of all users, plus
an "unknown" option so that the field can be left "blank" if required.

I can get the list of users with the hibernate query:
select prop.value from BaseObject as obj, StringProperty as prop
       where obj.className='XWiki.XWikiUsers'
             and =
       order by prop.value

But don't know how (or if it's possible) to modify the query to append
an extra static value like "unknown".
I would rather not create a dummy user to represent this value, and if
I can avoid creating a separate dummy class and object to hold the
value that would be good too.

If the list class could understand velocity arrayLists rather than the
hibernate query, I could do something like:
### Select all users: ###
#set($query = "select prop.value from BaseObject as obj,
StringProperty as prop where obj.className='XWiki.XWikiUsers' and = and'fullname' order by prop.value")
#set($users = $$query))
### append an extra value: ###

Is there a way to modify the hibernate query to achieve the same
effect directly in the class editor?


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