I did:
class AreaProxy(object):
def __init__(self,parent):
self.parent=parent
def __getattr__(self, key):
return self.parent.area_total
return getattr(self.parent, "area_" + key)
@property
def area(self):
return Warehouse.AreaProxy(self)
but when filtering :
filter(Warehouse.area.total>=100)
i get
AttributeError: 'property' object has no attribute 'total'
On 13 Paź, 22:00, g00fy <[EMAIL PROTECTED]> wrote:
> I am talking about both.
>
> I said it right,
> It wasn't working becouse it returned a string column name, and should
> return a value on instance.
> And i want to be able to filter by this property also.
>
> On 13 Paź, 21:56, Michael Bayer <[EMAIL PROTECTED]> wrote:
>
> > On Oct 13, 2008, at 3:40 PM, g00fy wrote:
>
> > > I want to:
> > > Warehouse.area.total
> > > to return
> > > Warehouse.area_total
>
> > > and so on :
> > > Warehouse.area.storage
> > > returns:
> > > Warehouse.area_storage
>
> > then why did you say:
>
> > > And this isn't working becouse:
> > > Warehouse.area.total
> > > returns
> > > .area_total
>
> > are you talking about class-level SQL predicates, or instance-level
> > attribute values ? composite will give you the latter, the recipe I
> > gave will give you the former. The recipe can be adjusted to
> > produce both but its more complicated.
>
>
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