26 Jul
2000
26 Jul
'00
7:13 p.m.
On Wed, Jul 26, 2000 at 10:14:09AM -0700, joel grimes wrote:
How do I do this?
I have a table with a field called SerialNumber. I want to test it for null and return a non-breaking space if it's null.
Here's what I tried:
<dtml-if "SerialNumber = null"> <dtml-else><dtml-var SerialNumber> </dtml-if>
If null means an empty string (e.g. '') or the Python value None, the first line should be: <dtml-if "not SerialNumber">nbsp; or perhaps (empty string only) <dtml-if "SerialNumber == '' ">nbsp; It really helps to remember that anything inside double quotes gets evaluated as a Python expression. You were initially trying to assign the value of null (which may have not actually existed) to SerialNumber. -- Patrick Lewis <pl@teleport.com>