Thoughts on fetching data from iRev cgi's (in chunks)

David Bovill david.bovill at gmail.com
Mon Apr 12 14:21:07 CDT 2010


Yes - either that or DreamHost?

On 11 April 2010 14:01, Michael Kann <mikekann at yahoo.com> wrote:

> David,
>
> Are you doing this on the on-rev server?
>
> --- On Sun, 4/11/10, David Bovill <david at vaudevillecourt.tv> wrote:
>
> > From: David Bovill <david at vaudevillecourt.tv>
> > Subject: Thoughts on fetching data from iRev cgi's (in chunks)
> > To: "How to use Revolution" <use-revolution at lists.runrev.com>
> > Date: Sunday, April 11, 2010, 6:28 AM
> > What would be the best strategy for
> > fetching a series of pieces of data from
> > a url call to display the text first and then when ready
> > the images or
> > larger binary data?
> >
> > What I'd (naively) like to do is:
> >
> >    1. Call the cgi  - possibly without
> > using load url
> >    2. The CGI returns the text data
> >    3. After returning the text data the cgi
> > goes and fetches the binary data
> >    - say a dozen or so images and stores
> > them on the server
> >    4. Another call to the cgi (or a related
> > cgi) returns the binary data if
> >    it has been loaded or "still loading" if
> > it has not fetched all the images
> >    yet. (could be a load url call and only
> > return the image data)
> >
> > At the moment I've been looping through the images and
> > using load url call
> > for each one - the logic on the client side gets quite
> > messy on the client
> > side and there are often hunreds of url calls going off
> > everywhere, also
> > there are cases where I'd like the server to do the asynch
> > work, and not the
> > client. Does anyone have any thoughts on a good strategy
> > for incrementally
> > fetching web data like this down to the client? Some fuzzy
> > questions:
> >
> >    1. Is it possible to get a cgi to return
> > data first and still go on and
> >    do work afterwords (like fetch and cache
> > the images on the server)
> >    2. Any possible uses of Cron jobs here -
> > has anyone scripted cron jobs
> >    from Rev?
> >    3. What sort of things have people done
> > with delayed action calls in iRev
> >    - is ti possible to use send in time or
> > the equivalents?
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>
>
>
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