I have a PostgreSQL function discounted_price(packages%ROWTYPE), where
packages is a table. I would like to add a property on the model
corresponding
to the packages table which returns the result of the discounted_price
function.
Currently I have this which works:
@property
def
Hmm, I've tried that and gotten the following error:
ProgrammingError: (ProgrammingError) function discounted_price(unknown) is
not unique
LINE 1: SELECT discounted_price('packages.*') AS discounted_price_1
^
HINT: Could not choose a best candidate function. You might need to
(‘packages.*’)) won’t quote like that:
from sqlalchemy import func, text
print func.discounted_price(text('packages.*'))
discounted_price(packages.*)
On Sep 8, 2014, at 12:10 PM, Tyler Bondy ty.b...@gmail.com javascript:
wrote:
Hmm, I've tried that and gotten the following error
I can't seem to construct a relationship against this ServiceInstance class
without having
the Endpoint class inherit from a new declarative_base(). I've tried
several different
methods of calling relationship() and the error messages are fairly
similar. Below I've
shown the two classes as
I have tried calling relationship without foreign_keys or primaryjoin, in
which case I get an error message suggesting I specify foreign_keys. Base
is the same class for both model classes in the case where this does not
work. When each model class has a different Base class things work fine.
Also, thanks for the quick reply.
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Thanks, I ran a similar script without any problems. It seems there's a
modification somewhere to the Base we are using that causes the conflict.
On Thursday, June 12, 2014 12:26:45 PM UTC-4, Simon King wrote:
For what it's worth, the following script works for me, but I only
have access to
Hello all:
I'm looking at how to model this setup. I have objects in a game, that
are called entities. Each entity has a list of components, which inherit
the component class. A living component might have attributes like hp,
max_hp, etc along with the component properties.
So: I'm trying to
