[Zope] Whats the correct way...

[Michel Pelletier]

> -----Original Message-----
> From: raver@box.dust.za.net [mailto:raver@box.dust.za.net]
> Sent: Monday, April 05, 1999 3:26 PM
> To: zope@zope.org
> Subject: [Zope] Whats the correct way...
> 
> 
> Hi!
> 
> First off all I want to apologize if this question is way off 
> topic here,
> but I'm stuck and don't know where else to turn my question.
> 
> Heres the situation:
> 
> I've made a form to let people search a database where they 
> can choose wich
> datafields is going to be shown in the result (this is done 
> by several 
> checkboxes). Now if I pass this forms data onto a ZSQLmethod that
> handles the sql select query (variable names from the 
> checkboxes are handled
> by '<!--#if names--> - scentences') I end up with an error if 
> not all of the
> checkboxes are checked out. 
> 
> What would be the correct way to have this handled? (Choose 
> what data to be
> displayed)
> 

You may find yourself in a situation where the attribute must exist in
your DTML (and you want it to be a value or something else) but it may
or may not be passed in by a calling form.  To handle this, try:

<!--#with _.namespace(data='')-->
  <!--#with REQUEST-->
	... (Then use data)
  <!--#/with-->
<!--#/with-->

Here, if 'data' exists in REQUEST then it will override the default of
''.

A rather sickening DTML construct like this is used in NotMail DTML in
folder.dtml.

Does this help?

-Michel



> Sture Lygren
> 
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