On Thu, Sep 22, 2011 at 12:08 PM, Vincent Massol <[email protected]> wrote:
On Sep 22, 2011, at 11:46 AM, Guillaume Lerouge wrote:
Hi,
On Thu, Sep 22, 2011 at 1:45 AM, Sergiu Dumitriu <[email protected]> wrote:
On 09/21/2011 03:41 PM, Vincent Massol wrote:
Hi Eddy and all,
On Sep 21, 2011, at 6:43 PM, Eduard Moraru wrote:
Hi devs,
As part for the 3.2 Roadmap, the plan for the workspaces feature was to add some hooks into the platform that could accept a workspaces extension if an admin decided to install it.
Without adding these hooks, there currently isn`t any mechanism (like Interface Extensions, but not limited to that) that allows a simple application to modify whatever it wishes (like user profile sections, administration sections, top menu, etc.) so I went ahead and added some code into the platform that executes only when the workspaces extension (wiki pages and component/service) is installed.
I don't like this too much for 2 reasons: 1) the workspaces app is not part of the platform ATM. It would be like someone we don't know coding an application and sending us a patch to modify the platform code to test if his own personal app is installed or not 2) it keeps adding kludges instead of finding a real solution
To help with point 1), we could vote the fact that we're ok to have workspaces in the platform but that doesn't solve 2).
We could look at it point by point and find a solution for each point.
IMO ATM you should use jsx to add those entries so that no change is required in the platform. I know some of you don't like this solution but IMO the best right now when the application is not part of the platform.
Then we need to open a discussion for adding extension points for each location where you need it.
One solution would be to use XClasses to provide extension points.
Point 1: Ability to add User tabs. There are several ways in which this can be achieved. Example solution: Introduce a UserTabClass and add as many tabs as there are UseTabClass objects in the wiki
Point 2: Ability to add menu entries in the top level menu. Example solution: Have a MenuEntryClass and a MenuItemEntryClass, each having 2 fields: one field for the menu entry name and one for the position. The construct the menu dynamically
The issue with these solutions is performance. A solution would be to add a module and have java listener listening to object changes + an API to return the data. However this maybe slightly too complex. BTW it could be interesting to offer a generic script service to do this (the idea would be to offer an active cache that would refresh when an XObject is updated).
Of course another solution would simply be to bite the bullet and start implementing IX… ;) (I need to read again Sergiu's design doc about it since I have forgotten how Sergiu planned to implement it)
The major blocker for me is the raw velocity parsing done on the .vm templates. One step forward would be to implement support for any kind of templates for generating the response, using the full power of the rendering engine. But that's something for another thread.
Any other idea?
Accept Edy's patches as a temporary solution, pushing for a proper cleanup in the next releases.
I don't know how urgent these changes are, we should decide together if it's OK to skip these changes for 3.2 and instead work on a more flexible way of integrating them in 3.3.
Feature-wise, the work proposed by Edy is very good. In short, it turns XEM into a tool that can be used to easily manage wiki-based communities, which is a feature that I see users requesting a lot these days. People I talk with keep asking me about social and communities in XWiki and I've seen several workaround implementations on projects I'm involved with already.
Thus I'm very much in favor of making them available in XE 3.2, especially given that Edy spent a lot of time working on them to have them ready for the release.
I agree that his solution is far from clean, but we're still waiting for a clean IX mechanism that I do not believe will be ready for 3.3. Thus this means that waiting for the IX mechanism to make the Workspaces feature available would delay it by about 6 months. I'm not in favor of this solution.
Using jsx doesn't require any change in the platform. This means that XE right now is compatible with the workspaces application. That's the point and how extensions should be: independent of the platform (no hard links).
So there's no issue of timeframe if Eddy is ok to use JSX.
JSX is currently our clean solution for IX. There's no other way ATM. This is how anyone adds UI elements cleanly to an existing XE (apart from modifying templates/pages but that's not clean since an upgrade will overwrite those changes or at the very minimum you'll need to do a merge).
ATM I'm very strongly in favor of using JSX for this kind of integration (for extensions) till we propose a better IX solution.
I'm -0 tending to -1 to advertise this as the clean way of integrating such feature. When you say this, the message I read is "you can do it if you want but your code will be awkward". Until we have IX, I prefer we accept to introduce hooks the way the "forgot username/reset password application" is built upon. At least the awkwardness is shared between the platform and the feature. Jerome
Thanks -Vincent
Guillaume
Thanks
-Vincent
I`ve created http://jira.xwiki.org/browse/XWIKI-6991 with some
details about
what I have done and made a pull request at https://github.com/xwiki/xwiki-platform/pull/24 since I did not want to rush at applying the changes without running them by you guys.
I`ve broken the issue down to subtasks with separate commits to make the review easier.
There currently is a demo server for the workspaces feature at http://wiki30-demo.xwiki.com but I will have to update it tomorrow with the latest version. Not much changed, you can see the visible changes in the specific jira subtasks (screenshots).
The goal would be for this to make it into 3.2 so that people could then install (the soon to be released) workspaces extension and try it out.
Please take some time, if possible, to look over the proposed changes and spot any problems.
Thanks, Eduard
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