[Zope] ASC / DESC in queries`?

[Thomas B. Passin]

[Jim Washington]

> Thomas B. Passin wrote:
> > [Jim Washington]
> >
> >
> >>I would set it to a zero-length string. Zope handles the following OK on
> >>my machine.
> >>
> >><a href="<dtml-var URL0>?sort_order_asc=1">ascending</a>
> >><a href="<dtml-var URL0>?sort_order_asc=">descending</a>
> >>
> >
> > Better to have it be   ...sort_order_asc=0 so that you can be sure that
the
> > property exists.  You can still test it easily using dtml-if.  Otherwise
the
> > test may fail because the property does not exist.
>
> I thought that too, then tested it.  ...sort_order_asc=0 returns a
> string, '0', which tests true.  The dtml we were working with just
> tested existence or truth, <dtml-if sort_order_asc>, so sending an empty
> string in this case works better, unless one really wants to go through
> the trouble of checking for existence, then doing an _.int on it or
> running it through <dtml-try>.
>
> Unless, of course, it is invalid HTML, which I haven't checked. :)

Well, well, I tried it too and got your result.  Good to know.

Tom P