[Zope] Checking sequence-index using dtml-if

[Tino Wildenhain]

John Morton schrieb:
> 
> On Sun, 18 Feb 2001 21:57:27 -0600 Jeff Hotz <jeff@hotz.net> wrote:
> 
> > I only want to operate on the first 3 records returned in the
> > ZSQL_select_images.
> >
> > I thought that a dtml-if test would do it based on the dtml-var
> > sequence-index but I'm not having any luck.
> >
> > Any suggestions on either my logic or the implementation of it?
> >
> > Any help you can offer will be greatly appreciated.  Thanks.
> >
> > <dtml-in ZSQL_select_images>
> >    <dtml-if expr="'<dtml-var sequence-index>' < 3">
> 
> You can't embed a dtml statement inside another like this .I believe this
> says 'if the string '<dtml-var sequence-index>' is less than three', which
> is not what you want. What you probably did was to start by using
> sequence-index and had zope complain about it. What you should try is
> this:
> 
> <dtml-if expr="_['sequence-index'] < 3">
> 
> Use the dtml namespace lookup notation when ever you need to use an
> attribute name with a '-' in it, inside an expression. And submit it as a
> bug to the collector until the DC folk give in and include '_' equivalents
> to all the attributes that use dashes :-)
> 

Patch is available from me until DC follows...

Regards
Tino