Hi 2014-10-02 2:23 GMT+02:00 Bryn Jeffries <[email protected]>:
> I'm appreciate some pointers on getting started on writing an extension > component that retrieves data from an external database and presents it as > a table. I have reviewed a lot of the available documentation, but must > admit to getting a little lost with the various changes in standards, as a > lot of the available code and documentation describes macros, which I > believe are now deprecated in favour of components. > There is a lot of options. You can either: - write a new component indeed, and a script service to expose it to the scripting languages that we have on XWiki: http://extensions.xwiki.org/xwiki/bin/view/Extension/Script+Module - write it directly in Groovy inside the wiki: http://platform.xwiki.org/xwiki/bin/view/DevGuide/Scripting My extension already does something similar, see: http://extensions.xwiki.org/xwiki/bin/view/Extension/SQL+Tools > > I am happy creating a new component using the Maven archetype, and writing > the necessary code to retrieve data from the external database. What I > would like help with are: > > 1) How can I get the current user, so that I can use this contextual > information in my query? > You have this information in the XWikiContext object, that you can inject in your component via a provider. (like this: https://github.com/xwiki/xwiki-platform/blob/master/xwiki-platform-core/xwiki-platform-wiki/xwiki-platform-wiki-default/src/main/java/org/xwiki/wiki/internal/manager/DefaultWikiManager.java#L55 ) If you are scripting, it is $xcontext.user. > > 2) How should I return the tabular data? > > I'm sure these are very naïve questions, but please take pity on me and by > all means point me at the relevant documentation if it exists already. > Maybe you should return a Map that you then display with some velocity code in a page. > > _______________________________________________ > devs mailing list > [email protected] > http://lists.xwiki.org/mailman/listinfo/devs > I hope it helps, -- Guillaume Delhumeau ([email protected]) Research & Development Engineer at XWiki SAS Committer on the XWiki.org project _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
