Hi,
we are trying to migrate our old *Extension based SQLA code to new -
event based.
We also have class based properties that we want to keep. With old SQLA
we have had to monkey-patch _as_declarative function to populate our
properties. I wonder if it is possible to avoid doing it with
my immediate thought on that code is to replace TefProperty with a function,
since you are discarding TefProperty in any case:
def propInt():
return sa.Column(key, Integer)
not sure how the previous Extension version of the code did this differently,
this is really a class creational
My example is just the shortest code I could come up with to show a
problem, but in production it doesn't look like this.
We're using class inheritance, metaclass features etc, so changing it to
function is not an option for us :|
W dniu 21.09.2012 15:59, Michael Bayer pisze:
my immediate
using a class there which replaces itself means you've developed a custom
creational pattern. A less hacky approach would be to subclass
DeclarativeMeta, and just pass it to your Base:
from sqlalchemy.ext.declarative import DeclarativeMeta
class TefnetMeta(DeclarativeMeta):
def
In fact we used to use metaclass way of handling this problem, but for
some unknown reason it was changed to monkey patching _as_declarative :|
Couple months ago I've read your post:
http://techspot.zzzeek.org/2011/05/17/magic-a-new-orm/
where there is a similar approach (classes generate
On Sep 21, 2012, at 10:57 AM, Tefnet Developers wrote:
In fact we used to use metaclass way of handling this problem, but for some
unknown reason it was changed to monkey patching _as_declarative :|
Couple months ago I've read your post:
W dniu 21.09.2012 17:19, Michael Bayer pisze:
On Sep 21, 2012, at 10:57 AM, Tefnet Developers wrote:
In fact we used to use metaclass way of handling this problem, but for some
unknown reason it was changed to monkey patching _as_declarative :|
Couple months ago I've read your post:
On Sep 21, 2012, at 11:31 AM, Tefnet Developers wrote:
W dniu 21.09.2012 17:19, Michael Bayer pisze:
On Sep 21, 2012, at 10:57 AM, Tefnet Developers wrote:
In fact we used to use metaclass way of handling this problem, but for some
unknown reason it was changed to monkey patching
W dniu 21.09.2012 17:58, Michael Bayer pisze:
On Sep 21, 2012, at 11:31 AM, Tefnet Developers wrote:
W dniu 21.09.2012 17:19, Michael Bayer pisze:
On Sep 21, 2012, at 10:57 AM, Tefnet Developers wrote:
In fact we used to use metaclass way of handling this problem, but for some
unknown
