Philippe J wrote:
I'd like to implement a chat function using the multipart content type and I wonder if that is possible with Zope. My idea is to write a python script that pushes the content of a database until e.g. the stop button is pressed in the Browser. But how would the script know that it's supposed to stop? And would such a longtime connection completely occupy one Zope thread so that I'd have to increase the number of threads?
Not sure about the threads, but a quite comonly used trick is to generate the html page as the chat evolves, without writting the ending </html> tag. The browser will think the connexion is slow, and will continue to display the page. You should not, however, use complex layout (tables), as the browser sometimes need a complete page to display those.
I fairly sure this won't work, as I believe Zope renders a complete page before sending it the client browser. This is unlike something like PHP which sends the page as it interprets it. This confused me when I first switched as I was trained to always send headers before any output, however in zope you can manipulate the REQUEST object right up to the end of your page. Ivan