[storm] value_factory

[Gustavo Niemeyer]

Hi Joshua,

> Is value_factory supposed to be functional?  Tracing down into
> variable.py I find that it is Undef even if I set it in my column
> definition.  Same with 'value'.

What you define in a class isn't a variable, but a property.  The
correct attributes for a property are "default" and "default_factory".

That raises an interesting problem, though.  Storm should raise an
error when unknown keyword arguments are used in a property.  I've
opened a bug about this:

  https://bugs.launchpad.net/storm/+bug/326170

-- 
Gustavo Niemeyer
http://niemeyer.net