Answered Snippets triggering not solved

Any successions how should I approach this problem?

I want to trigger a snippet in the front end, say every 15 minutes, without a page refresh.

In REVO 2.2 (t)

Struggling with this one! Tanks ahead. [ed. note: iwbomodx last edited this post 14 years, 8 months ago.]

Need a bit more info - what does the snippet do and why does it need to be refreshed every 15 minutes?

If you want something on the server to automatically change something in the browser there are a couple of ways to do it, depending on just what you want to do. If this action is related to the user and his current session, then probably the best way would be via AJAX.

Having some regular server action automatically pushed to any open session (server push) is a different matter, and is an interesting problem.

http://www.zeitoun.net/articles/comet_and_php/start
http://xanjax.org/#servpush.xml [ed. note: sottwell last edited this post 14 years, 8 months ago.]

Sry, This is not solved, how to I remove the: [Solved]?
I am new to the forum.

I think I see what you want to do now. I haven't done anything with server side events before but it looks pretty interesting.

Really, you don't want to trigger a snippet from the front end at all as that would defeat the whole purpose. That would require a page refresh or ajax call.

I take it you already have a php script that is generating the content being pushed to your browser. I'm not sure how you are triggering this (I'm interested!), but provided you have an instance of MODx in that script already you can run any snippet your like and send the output using $modx->runSnippet.

(you can remove [solved] by editing the title of your first post)

If I write just a regular PHP code, it works. But it would be great do use the modx API and xPDO to get info from DB.

It's polling I think then, but I can't set the source to be a modx snippet php code.