How to make an action generate html?

Hi all:

I am trying to find out how to return a templated page from an action.
My thought is that the page template would be something like:

   index.chart.html

and would be expanded/returned from the action with the action somehow
embedding an svg as the main content.

This is an attempt to embed a chart (e.g
https://wiki.roundup-tracker.org/QueryResultPieCharts) invoked via an
action in a standard page template.

I want to use an action because it gets the request, database access
etc. when invoked (as part of self). IIUC templating
utilities/function don't have access to any of that unless invoked
with explicit arguments like:

  draw_chart(request, db)

I think templating renderWith() might be useful?

Any ideas here?

--
				-- rouilj
John Rouillard
===========================================================================
My employers don't acknowledge my existence much less my opinions.