[Zope] changing form values

[Joel Burton]

A bit simpler and fixed for a bug:

<dtml-in "REQUEST.form.items()" prefix=loop>
 <dtml-call "REQUEST.form.update({ loop_key: '%'+_.str(loop_item)+'%' })">
     or
 <dtml-call "REQUEST.form.update({ loop_key: '%%%s%%' % loop_item })">
</dtml-in>

prefix="xxx" isn't a widely known feature of dtml-in; it allows you to pick
a prefix for looping variables, and lets you avoid ugliness like
_['sequence-item'].

for a mapping {'a':'apple', 'b':'bear'}, a.items() returns
(('a','apple'),('b','bear'))

for each iteration of the dtml-in, this becomes _key='a', _item='apple',
etc.
If you don't use the prefix= trick, these would be sequence-key and
sequence-item, but
then you have the icky hyphen problem.

a_mapping.update() only takes one argument -- a dictionary; not two, as hans
has below.


Joel BURTON | joel@joelburton.com | joelburton.com | aim: wjoelburton
Knowledge Management & Technology Consultant

> -----Original Message-----
> From: zope-admin@zope.org [mailto:zope-admin@zope.org]On Behalf Of hans
> Sent: Monday, March 18, 2002 10:58 AM
> To: Horvath Adam
> Cc: zope@zope.org
> Subject: Re: [Zope] changing form values
>
>
>
> Horvath Adam wrote:
>
> > I'd like to put a % sign before and after the values of the
> form variables with a loop and keep the changed form varibles in
> the REQUEST object. How can it be?
>
> why? however (untested)
> <dtml-in "REQUEST.form.items()">
> <dtml-let i="_['sequence-item']"
>               k="i[0]"
>               v="i[1]"
> >
>    <dtml-call "REQUEST.form.update( k, { k: '%' + _.str(v) + '%' } )">