Message

I've noticed this happening when I delete documents this afternoon on our test B3 server - this is a new result on a previous mail I sent for B2 (titled "Deleting a document - XWiki10b2").

It's almost like, at certain times the XWiki has been treating my users as logged out (log-in link appears at the top right, group checks come back as false), even though they are in fact logged in.

From: THOMAS, BRIAN M (ATTSI) [mailto:bt0008@att.com]
Sent: 08 February 2007 14:59
To: xwiki-users@objectweb.org
Subject: RE: [xwiki-users] how to hide "${pdoc.displayTitle}" and its friends

The un-rendered display of Velocity references that evaluate to null (which is what this is) can be suppressed by adding "!" to the reference, right after the "$" - e.g.: $reference or ${reference} becomes $!reference or $!{reference}. That will stop the obnoxious display of data meaningless to the user, but I suspect that's not what you want. Instead, I think you want users to see the same thing as they would if logged in.

The problem, of course, is what causes the references to be null in the first place. If the information that is supposed to be displayed is not intended to be hidden from unauthenticated users, then access to the resources accessed by the reference needs to be granted to them (i.e., to XWikiGuest). In the specific case of ${pdoc.displayTitle}, I believe that the resource is the relevant Preferences page, i.e. XWiki.XWikiPreferences or <spacename>.WebPreferences. This is something I've seen, and I think that the default permissions on those pages are probably wrong.

It may also be due to lack of permission to read the "skins" or the "templates" directory. The URLs for these docs will be (relative to the appserver's address: /xwiki/skin/default/<docname> and /xwiki/templates/<templatename>.vm. I hope that's not the case, because I really don't know how to fix that.