Backgroundrb devel - Jul 2007 - RMagick progress monitor with backgroundrb - possible?

I''m looking for a way to give the user a progress monitor on large
image manipulations with RMagick.  I first looked at this method -
http://www.imagemagick.org/RMagick/doc/imageattrs.html#monitor - to do
it in a controller action, but since I can''t call multiple renders in
an action, I would need to store the progress in the database and call
another action from javascript to look it up, which seems like
overkill(although maybe there is a better way I haven''t thought of?).
So, I was wondering if it is possible to do it in a more
straightforward way with backgroundrb?

Thanks,
Ben

If monitor() does what I think it does, then it''s probably possible.

You can store the progress in the worker status, and then call an action
like "check_status" that asks for the worker''s status.  If
you were using
rails, you would then return an RJS template (or render a partial) to update
the page without reloading.  To call this action, you can use
periodically_remote (or something like that), or write your own javascript
that calls the action periodically with javascript''s setInterval().

Wil

On 7/18/07, Ben Haynor <ben.haynor at gmail.com>
wrote:
>
> I''m looking for a way to give the user a progress monitor on large
> image manipulations with RMagick.  I first looked at this method -
> http://www.imagemagick.org/RMagick/doc/imageattrs.html#monitor - to do
> it in a controller action, but since I can''t call multiple renders
in
> an action, I would need to store the progress in the database and call
> another action from javascript to look it up, which seems like
> overkill(although maybe there is a better way I haven''t thought
of?).
> So, I was wondering if it is possible to do it in a more
> straightforward way with backgroundrb?
>
> Thanks,
> Ben
> _______________________________________________
> Backgroundrb-devel mailing list
> Backgroundrb-devel at rubyforge.org
> http://rubyforge.org/mailman/listinfo/backgroundrb-devel
>


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