Gentlemen,
Thanks for the feedback. The problem is that I'm writing a base class
designed to be subclassed, and a method that will be inherited. Therefore, I
don't know when I'm writing the function what the names of the columns will
be (except for the DateCol). That's why I'm focused on passing a dict, which
lets me write the logic while omitting a predicate.
Is there another method for building a select query that allows me not to
hardwire the names of the columns into the code, that's also compatible with
adding an inequality?
Can I do a dict-based select, then do a subselect involving the inequality?
TIA,
cs
On Tuesday 05 February 2008 04:00:10 Frank Wagner wrote:
> I think that it won´t be possible the way you want, but why dont you
> just pass your criteria like this:
>
> # didn´t test this one
> querySet = (Person.q.name == "jim", Person.q.age == 34,
> Person.q.timeStamp <= datetime.date(2007,1,1))
>
> # but this definately works
> querySet = AND(Person.q.name == "jim", Person.q.age == 34,
> Person.q.timeStamp <= datetime.date(2007,1,1))
> # or, equivalent:
> querySet = ((Person.q.name == "jim") & (Person.q.age == 34) &
> (Person.q.timeStamp <= datetime.date(2007,1,1)))
>
> persons = Person.select(querySet)
>
> this should work.
>
> On Feb 5, 2008 9:35 AM, Oleg Broytmann <[EMAIL PROTECTED]> wrote:
> > On Mon, Feb 04, 2008 at 11:33:21PM -0500, Christopher Singley wrote:
> > > I've made great use of passing dicts into select methods, e.g.:
> > > queryDict= {'name': 'jim', 'age':34}
> > > result = Person.selectBy(**queryDict)
> > >
> > > How can I combine a dict-based SELECT with an inequality?
> > > Like if I wanted to further refine the above query to filter
> > > for (e.g.) only those with timeStamp <= datetime.date(2007,1,1)
> >
> > Hint: how can you express the ineqality with a dict?
> >
> > Oleg.
> > --
> > Oleg Broytmann http://phd.pp.ru/ [EMAIL
> > PROTECTED]
> > Programmers don't die, they just GOSUB without RETURN.
> >
> >
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