Alexey, I thought you could use Trellis. On Thu, Apr 9, 2009 at 6:30 PM, <[email protected]> wrote: > Greetings. > > I want a sequence which is Deferred with two callbacks: > one as usual - for the whole result called at the end of the sequence, > another - called for every element of the sequence (as they arrive). > > The number of elements is not known beforehand, so it is not a > defer.DeferredList, > but the idea is almost the same. > To provide some interface to send items to the sequence, fire item callback > for every > item arrived and have main callback to be called at the end of the sequence. > > It could be used for example in AJAX web-applications that use Athena to > simplify/automate the dynamic updates of some slowly arriving results (while > in > AJAX-supporting environment) and to gracefully fallback when javascript > is not enabled/not desired. > > It could be deployed as using a slightly modified "sequence"-like renderer > with > "data" function returning this form of Deferred. The renderer will output > some 'live' element immediately and then will append remotely it's contents > as items arrive. Or will fallback to the usual builtin "sequence" renderer > when AJAX is not desired. > > I think this approach will make it possible to hide all details into the > renderer code. > > The same could be done to make items replace each other with the last being > displayed as the final result... > > Or maybe it is already done in a different way? > Or have I missed something, could anyone point me, please? > > Thanks for your time. > > -- > Alexey S. > > _______________________________________________ > Twisted-web mailing list > [email protected] > http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-web >
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