22 Mar
2012
22 Mar
'12
2:56 p.m.
On Wed, Mar 21, 2012 at 9:07 PM, Sergiu Dumitriu <sergiu(a)xwiki.com> wrote:
We discussed another way to do this with Vincent:
- new QueryFilter interface, with one method QueryFilter#filter(String
statement, String language)
- new Query.setFilter(Filter)/getFilter() methods (could be add/remove)
- Query.getStatement() returns the filtered statement if there's a
filter to apply
I have a PoC with a TechnicalContentFilter (but TBH I'd rather name it
HiddenDocumentFilter) which encapsulate the old XWikiHibernateStore
doc.hidden filtering.
I do a setFilter(new TechnicalContentFilter()) in the DefaultQuery
construtor and it works fine. It could be extended and it's easily
"disableable" through Query#setFilter(null).
The only think I'm not sure how to resolve is the filtering of named
queries, I can't think of an easy way to support them with what is
explained above.
We talked about the first 5 minutes with Caty, also about roles and
the fact that having an arbitrary mapping between roles
(simple/advanced) and displayed actions/items (hidden pages, keyboard
shortcuts, etc) may not be the best way to do it. What we talked about
was:
- display a "Get started" wizard the first time a user logs in (it was
actually the starting point of the discussion)
- when the user finishes or dismisses the wizard, he's asked to choose
a "flavor": simple, advanced, developer, etc
- choosing a flavor sets some properties (display hidden documents,
enable keyboard shortcuts, watch whole wiki for admins, etc) in his
profile. Note: since those props will be set to "yes/no" but not
"undefined" we could know if the user went through the get started
guide by checking the value of one of this prop.
- a user can later fine tune his settings by editing his preferences
WDYT ?
--
Jean-Vincent Drean,
XWiki.
On 02/13/2012 11:27 AM, Vincent Massol wrote:
I still think that we could finish what you've started with
XWikiDocument#isHidden() by:
- moving it to the query manager
- making it easy to disable the filtering, with a per-call or per-user setting
- allowing to mark a document as hidden from the UI (the checkbox
would only be displayed to users who decided to display hidden
documents)
- get the list of spaces with :
-------------------------------------------------------8<-----------------------------------------------------
select distinct doc.space from XWikiDocument doc where (doc.hidden <>
true or doc.hidden is null) order by doc.space asc
-------------------------------------------------------8<-----------------------------------------------------
- mark all the technical documents in our distribs as hidden
For example It would allow to display the XWiki space in the list of
spaces but (by default) the list of pages within this space would be
the list of user documents. The scheduler space wouldn't appear
because it only contains technical documents.
Hi devs,
I've been brainstorming with Jean-Vincent about how to implement hiding
technical content for 4.0. Here's what we would like to do:
Note: This is related to the proposal I made earlier:
http://markmail.org/thread/jupn22fdk4nnqj6p
In summary:
* Add a RoleVisibilityClass XObject to documents and spaces (in
WebPreferences for Spaces) which is a list of Roles (simple or advanced
users for now) deciding which role should be allowed to view a given
document in result sets.
Should we use different objects for different levels of rights? For example,
we have XWikiRights and XWikiGlobalRights to distinguish between rights on
the WebPreferences document itself and rights on the whole space. If we
always assume that a RoleVisibilityClass object on a WebPreferences document
always refers to the space visibility, then we will have to rely on the
blacklist to hide all WebPreferences documents. Is that something we want to
hardcode?
An alternative that doesn't require using two classes is to add a "scope"
property to the class, to distinguish between document, space and wiki
settings.
* Either modify XWikiHibernateStore or introduce
a new
FilteredHibernateStore store which would delegate to XWikiHibernateStore
(same mechanism as the cache store) to add the JOIN to check the visibility
and only return visible documents for the current user
I'd rather use a new store interface, since I've changed the default store
to exclude the "hidden" documents from results, and this is making it hard
to ignore the hidden setting even from internal code.
* Remove the notion of hidden documents and have
a migrator to remove the
column in xwikidocs
+1.
* Modify the Lucene plugin to add a VISIBILITY
field and return filtered
results based on the visibility and the current user role
+1.
* Note1: After much brainstorming we think that
the notion of
"application" could be implemented either with an Application XObject that
tie the document to an application or with an Application Descriptor.
* Note2: We'll need to decide at some point if we want more roles than
just "simple user" and "advanced user" and if we need
"developer" and
"admin" too.
+1 for more roles in the future.
* Notes1 and 2 are currently out of scope for
this proposal
However we're wondering how much performance we will loose with this
implementation using XObjects (due to the extra JOIN).
With the proper indexes in place, and if we only use this check when running
queries from the wiki, it shouldn't have a big impact.
Do you think it's acceptable?
Could it be improved with custom mapping? (I think not)
Not that much, custom mapping helps only when there are objects with lots of
properties in them.
Should we implement this without XObjects and
instead modify
XWikiDocuments and add a new column in xwikidocs?
This would be better for performance (less joins).
Thanks
-Vincent
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--
Sergiu Dumitriu
http://purl.org/net/sergiu/
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