On Wed, Jan 3, 2018 at 4:30 PM, Thomas Mortagne <[email protected]> wrote: > On Wed, Jan 3, 2018 at 4:02 PM, Guillaume Delhumeau > <[email protected]> wrote: >> Hi devs. >> >> In XWiki, we have the ability to create wiki components. It means that each >> extension can define a custom XClass which is used to create a component >> when a corresponding XObject exists. >> >> Sometimes, this XObject contains a textarea where the developer could write >> velocity code. The velocity code is rendered, and the result is parsed in >> order to complete other actions. For example, velocity can render a >> boolean, or a list of documents, etc... The reason why Velocity is used is >> because it does not require programming rights. On the other-side, it can >> only return a string: the rendered content. > > Actually this is not true, you can "return" anything you want using > $output.setValue($someStuff).
actually $xcontext.method.output See http://extensions.xwiki.org/xwiki/bin/view/Extension/WikiComponent%20Module#HImplementingmethods > >> >> My use-case is to generate a specific list of users when an event is >> triggered, to perform some actions with these users. >> >> Currently, we have no recommended practice about this >> "velocity-rendered-fields". >> >> That's what I propose to always use JSON when velocity is used to render >> data in a wiki component. The reason is that JSON is standard and easy to >> parse. >> >> Use case: >> In the Event Stream module [1], the XClass >> "XWiki.EventStream.Code.EventClass" is used to trigger custom events when >> some event occurs. >> Example: if a DocumentUpdatedEvent is triggered and that event contains an >> XObject of type "Meeting", you can send a new "Meeting Created" event. >> There is a "Validation Expression" field used to determine either or not >> the custom event should be sent. Now I need to add an other field to >> determine which user should receive the event notifications. For example: >> if userA and userB have been invited to MeetingC, I need to send an event >> "Meeting Created" only for user A and user B. >> >> Here is my +1, >> >> Thanks, >> >> [1] >> http://extensions.xwiki.org/xwiki/bin/view/Extension/Event%20Stream%20Module#HDefinecustomeventsinwikipages >> >> -- >> Guillaume Delhumeau ([email protected]) >> Research & Development Engineer at XWiki SAS >> Committer on the XWiki.org project > > > > -- > Thomas Mortagne -- Thomas Mortagne
