Brad Clements writes:

One thing that has been bothering me is that I can't easily test my ZSQL Methods if they accept a date type unless I completely fill all the date arg types.

For example, if the sqlmethod has argument type startdate:date=''

and in the body I have <dtml-if startdate> ...

When i use the test form, I can't leave the date field empty, otherwise I get a conversion error from Converters.field2date()

One solution would be to use a valid (special) date as default value and test against it in the body.

I see that converters required: exists, but does that imply that all other converters allow an empty string to return None? Or do we need to add an explicit "optional" type? I think, we should have an explicit "optional" because that is the most clear way to say, this argument is optional.

Dieter