8 Sep
2008
8 Sep
'08
8:40 p.m.
Vincent Massol wrote:
Hi Sergiu,
On Sep 5, 2008, at 1:17 AM, Sergiu Dumitriu wrote:
-0 (close to -1) till you explain what is wrong with the solution
below :)
This could also be implemented using a special Tag (like:
"xwiki:hidden" for example).
The problem is that we want to leave out the documents that are NOT
hidden, so a query that does that will have to use a subquery (either
NOT EXISTS or NOT IN), which increases the query complexity and
execution time. And, as Jerome said, we'd have to filter this tag when
displaying documents, and, as you said, this setting should not have the
same rights as normal tags.
I was going to say: "In general I think we need
the ability to add
generic metadata to a document.". however this already exists: it's
called Objects! :)
So I think instead of adding more and more fixed metadata we might
instead want to use Objects. Either reuse the existing Tag or create a
new Visibility class/objects.
What are the cons of using Objects for this feature?
Mostly query complexity and execution time, but also the fact that for
the moment this should be a "private" setting that should not be
accessible to normal users. As I said, this is a hack until we'll have
the new model in place. The hack is needed because I don't want to use
the 'XWiki' space for all support documents (macros, templates, style
and others). The extra document metadata field is not such a bad idea
IMHO because it is the least intrusive solution. Yes, I know it is the
most intrusive one (on the implementation level) because it changes lots
of things, but from the users' PoV it is invisible.
--
Sergiu Dumitriu
http://purl.org/net/sergiu/