[Grok-dev] How do I get current day as default in interface schema definition?

[Sebastian Ware]

I am realising that the current schema definition default value is  
useless since it is evaluated only at startup. Is there some way to  
get grok to reevaluate the default value in a schema definition at  
runtime? Or is there some other recommended way of passing the current  
day as default to the add form?

class IStory(Interface):

   publish_date = schema.Date(title=u'Publish Date', required = False,  
default=date.today())

Mvh Sebastian