[ZPT] FORMs and processing

[Tony McDonald]

On 26/6/01 2:57 pm, "Steve Drees" <drees@the-bridge.net> wrote:

>> What's the received wisdom on using FORMs and PageTemplates? After a
>> nightmare project where HTML coders were mangling DTML code I've
>> decided to
>> look at ZPT in a lot more detail...
> 
> 
> Here's what I currently do:
> 
> <span tal:replace="request/ErrorMessage | nothing" />
> <form action="process">
> <table>
>   <tr tal:repeat="item here/is/some/sql">
>     <td> something <td>
>     <td tal:content="item/morestuff">From the sql</td>
>     <td><input name="somethingelse" /></td>
>   </tr>
>   <tr><td><input type="submit"></td></tr>
> </table>
> </form>
> 
> 
> 
> python script with id: process
> if context.REQUEST.has_key('somethingelse'):
> return context.next_form(context)
> else:
> context.REQUEST.set('ErrorMessage','You need to enter a value for
> somethingelse')
> return context.first_form(context)
> 

This seems to imply two Page Templates (first_form and next_form)?

I really like the <span tal:replace="request/ErrorMessage | nothing" />
construct - very neat!

My Zen level is slowly increasing with PT, thanks Steve.
Tone.
-- 
Dr Tony McDonald,  Assistant Director, FMCC, http://www.fmcc.org.uk/
The Medical School, Newcastle University Tel: +44 191 243 6140
A Zope list for UK HE/FE  http://www.fmcc.org.uk/mailman/listinfo/zope