You can't really actively "send" information from the server to the client, unless there is some kind of connection established. Normal http connects, reads or writes and disconnects, but a browser doesn't maintain any kind of connection to the server. That said, what I would probably do is calculate a MD5 sum over the "data" on the server side. Every time there is a change made by someone I'd update that MD5 sum. Then I'd use a normal timer on the client side and fetch that MD5 sum every x minutes. If the checksum changed versus the last reload you then could either do a reload or an ajax call to just fetch the data and repopulate the table.
Just a thought... Uwe On Friday 05 October 2007, onmountain wrote: > Hi. I have a simple data model of an in and out board for people to > mark themselves when they leave work, etc. I have it in an html table > dynamically, and then I have some Ajax running now that sorts the > table and also has edit buttons for the in/out status field. This is > my learning project and so far TG and Ajax rock!!!! > > What I can't seem to find in any of my Ajax books or online (at least > with a complete working example) is how to implement a data refresh in > Ajax. When someone updates their in/out status I want that change to > appear (some lag ok) on all other open in/out screen. Of course, I > could do a page refresh, but that would defeat the purpose of what I > am trying to do learning TG and Ajax :-) > > I have two "ideas" - > 1) a simple timer of some kind on client that would do some sort of > reload of data back into the table - seems like extra traffic > generated even if no changes made > 2) client side waiting for signal from TG that there has been an > actual change, requiring a reload - no change unless actual data > changes > > Any suggestions or even leads would be appreciated > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "TurboGears" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/turbogears?hl=en -~----------~----~----~----~------~----~------~--~---
