[storm] Meta data

[James Henstridge]

On Tue, Jul 8, 2008 at 6:47 PM, Gerdus van Zyl <gerdusvanzyl at gmail.com> wrote:
> Hi,
>
> I would like to propose the following small change to the Variable class:
> def __init__(self, value=Undef, value_factory=Undef, from_db=False,
>                 allow_none=True, column=None, event=None,**otherkwargs):
>
> .....
>        self._extrakwargs = otherkwargs
>
> This allows arbitrary keyword arguments like:
> creditlimit = Decimal(precision=(12,2))
> that can be accessed using:
> p = (one of self._storm_columns)
> p._variable_kwargs['precision']
>
> This is ultra handy for associating meta data specific to a database column.
> Currently Variable is throwing a hissy fit (exception) when you try to do this.

Note that Storm creates a lot of variable objects (one per column per
instance, and a number get created as part of the expression parsing),
so I don't know if you'd want to be storing things like this.  In the
current trunk version we've been using __slots__ to try and slim down
the class.

What exactly do you want to do?

James.