[Zope] DTML-IF problem

[K. Praveen Kumar]

Dear Florian Reiser,
     Thank you for the help. It is been working fine when I changed from
<dtml-if "Child_Enrollment_Date=='None'"> to <dtml-if
Child_Enrollment_Date==_.None">.

Thanks & Regards
Praveen
On Tue, 2003-10-07 at 16:44, Florian Reiser wrote:
> Dear Praveen,
> 
> try:
> <input type="text" name="date3:date" size="15" value="<dtml-if
> "Child_Enrollment_Date==_.None"><dtml-var Child_Enrollment_Date
> null=""><dtml-else><dtml-call
> "REQUEST.set('Child_Enrollment_Date1',Child_Enrollment_Date.strftime('%m
> /%d/%Y'))"><dtml-var Child_Enrollment_Date1 null=""></dtml-if>">
> 
> The NULL value from your database gets converted to the python value
> None.
> 
> Regards
> Florian Reiser
> 
> -----Original Message-----
> From: zope-bounces at zope.org [mailto:zope-bounces at zope.org] On Behalf Of
> K. Praveen Kumar
> Sent: Tuesday, October 07, 2003 12:43 PM
> To: zope at zope.org; Praveen Kumar
> Cc: dieter at handshake.de; cms at adytumsolutions.com;
> allison at sumeru.stanford.EDU; lukesh at seznam.cz
> Subject: [Zope] DTML-IF problem
> 
> 
> Dear All,
>     I am getting problem while evaluating the condition. I am retrieving
> the values from MySQL database to show in the text boxes. Here I would
> like to test whether the data in the database is empty or not. If empty
> then I would like to show one message, if not I wanted to get the value.
> 
> This is the code:
> *****************************************************************
> 
> <input type="text" name="date3:date" size="15" value="<dtml-if
> "Child_Enrollment_Date=='NULL'"><dtml-var Child_Enrollment_Date
> null=""><dtml-else><dtml-call
> "REQUEST.set('Child_Enrollment_Date1',Child_Enrollment_Date.strftime('%m
> /%d/%Y'))"><dtml-var Child_Enrollment_Date1 null=""></dtml-if>">
> 
> *****************************************************************
> It is every time executing the <dtml-else> part. How can I validate the
> 'Null'? Please give your suggestions on this