[SQLObject] Re: Some question about fromDatabase

[gary n. <li...@ga...>]

Another thing I notice is that the validators in col.py inherit from
Validator, not FancyValidator and defines :

to_python rather than _to_python.

The result seems to be that it takes over everything in formencode tree and
thus the if_empty thing just don't work at all even if I specify it. Is this
intended ?

"gary ng" <li...@ga...> wrote in message
news:dj9khe$a0q$1...@se......
> Hi,
>
> I rely heavily on fromDatabase and find it missing something. I have
already
> submitted some patches so more validators can be guessed from database
info.
> However, I notice one thing that is not very convenient. The validators
> created are by default with "NOT NULL" equivalent as the validators
created
> don't have if_empty=None keyword. So if I use these validators to validate
> some input which is empty, all will fail even though my table definition
may
> not specify NOT NULL which means empty/None is valid content.
>
> This I believe is in general not the case of table definition. In order to
> do this properly some changes are needed to the whole col.py file so all
> column type can take one more argument for the column validator
> creation(if_empty). Another is of course change formencode so all
validators
> assume if_empty=None.
>
> Just want to know what people think about this issue.
>
>
>
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by:
> Power Architecture Resource Center: Free content, downloads, discussions,
> and more. http://solutions.newsforge.com/ibmarch.tmpl