Just an itsy bitsy note. How does this stuff handle sessions ? Joe B
has mentioned something that touches on this - web2py (and most
frameworks) use sessions to create an application level context. The
slight problem is if you introduce blocks that are supposed to work/
load in parallel, it will be a little awkward because of how currently
sessions work in web2py IIRC. At best, the blocks will load
sequentially, at worst you will end up with a deadlock.

Another problem is that the user can essentially 'fork' your
application by opening a page in a new tab/page, which can cause all
sorts of interesting interactions with self-aware independently
functioning (but state-wise not independent) blocks.

On Apr 4, 10:41 am, Iceberg <[email protected]> wrote:
> I want to test this idea, but it seems the events.tar does not contain
> that magic new web2py_ajax.html ?  Did I miss something?
>
> On Apr4, 2:02pm, mdipierro <[email protected]> wrote:
>
> > I re-posted a slightly better version.
>
> > The new version work in this way:
>
> > say you have an action like:
>
> > def myform():
> >      form=SQLFORM(...)
> >      if form.accepts(....):
> >           # do something
> >           redirect(URL(....));
> >      return dict(form=form)
>
> > You can turn it into a partial by replacing "redirect" with
> > "jDiv.redirect or "jDiv.flash"
>
> > def myform():
> >      form=SQLFORM(...)
> >      if form.accepts(....):
> >           # do something
> >           jDiv.redirect("done!!!");
> >      return dict(form=form)
>
> > and create a view that DOES NOT extend the layout and does not have
> > HTML and BODY tags. Something like this will do:
>
> > {{=form}}
>
> > Then create a parent action and in the view embed this partial
>
> > {{=jDiv("click me to ajax the partial",URL(r=request,f="myform"))}}
>
> > Mind that a partial can be served by another application (within the
> > same web2py installation), can be a proxy to a different web-site and
> > can contain an IFRAME (not recommended but possible).
>
> > > On Apr 3, 4:08 pm, mdipierro <[email protected]> wrote:
>
> > > > I have prototype application that does this.
>
> > > >    http://www.web2py.com/examples/static/web2py.app.events.tar
>
> > > > It uses jquery publisher subscriber mechanism. All the code is in a
> > > > new web2py_ajax and a class call jDiv (similar to Rails Partial but
> > > > more powerful in my opinion) which I could include in html.py
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