Hi Phil, Yup that works! I just added <dtml-unless "REQUEST.has_key('batch_size')"> <dtml-call "RESPONSE.setCookie('batch_size', 20)"> </dtml-unless> to the index_html document. Thanks for the tip, Regards, Simon B. P.S. Sorry for sending in HTML last time.

-----Original Message----- From: Phil Harris [mailto:phil.harris@zope.co.uk] Sent: 20 June 2001 14:25 To: Blandford, Simon [BSS Audio UK]; zope@zope.org Subject: Re: [Zope] In DTML, no cookie then default. How?

Simon,

try something like (untested):

<dtml-unless thing_cookie> <dtml-call "REQUEST.set('thing_cookie','default value for the cookie')"> </dtml-unless>

You may need to change the unless stuff, to something like <dtml-unless "REQUEST.cookies.has_key('thing_cookie')">, or similar.

hth

Phil phil.harris@zope.co.uk

----- Original Message ----- From: Blandford, Simon [BSS Audio UK] To: 'zope@zope.org' Sent: Wednesday, June 20, 2001 2:10 PM Subject: [Zope] In DTML, no cookie then default. How?

Hi,

I have worked out how to store cookies and retreive them in DTML to store preferences on a form.

Question. If the cookie isn't there yet or gets deleted/rejected etc. How do I insert a default value into the name space?

What I need is something like... if <thing> isn't there then <thing>=some default value.

What would solve my problems would be if <dtml-let> didn't need a closing </dtml-let>.

Background...

This cookie is used to enter a preference value in a form, thus...

<tr> <th align="left">Batch Size</th> <td><input type='integer' name='batch_size:int' size=2 value="&dtml.missing-batch_size;" /></td> </tr>

When the form is entered the cookie is set to the value inserted by the user, thus... <dtml-if "REQUEST.has_key('batch_size')"> <dtml-call "RESPONSE.setCookie('batch_size', batch_size, expires='Wed, 19 Feb 2020 14:28:00 GMT')"> </dtml-if>

When the user comes back to the form, the value of batch_size is magically read from the cookie as a default again.

Problem... The form is called for the first time so there is no cookie. How do I set batch_size to a default value?

Regards, Simon.