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>
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 <[EMAIL PROTECTED]>
Zope maillist - [EMAIL PROTECTED]
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