Re: [SQLObject] Re: The best way for TriState columns?

[Kevin D. <da...@gm...>]

On 7/26/05, Waldemar la Tendresse <wla...@ca...> wrote:
> Could someone please explain the validators cocept (WHAT gets called WHEN
> and in WHICH situations). Why are for example
> fromPython and toPython called several times per attribute set. Though I
> don't have any (bigger ;-) ) problems with the rest of SLObject
> I am quite lost when it comes to validators.

The validators package comes from FormEncode. You can see the full
docs here, if you're interested:

http://www.formencode.org/docs/Validator.html

The short form is that the validators are used to convert data from
Python's data formats to something appropriate for the database for
that column type. They are also used to go the other way: translating
from the data stored into the database to an appropriate Python value.

I would expect the appropriate validators to be called once per query
per column...

Kevin