make ElProduct and FoodProduct inherit GeneralProduct.
use joined_inheritance, and left-outer-joins instead of unions.
at the end, query(GeneralProduct) will give u all the types.
if u want just the GeneralProduct alone, that would be something like
query(GeneralProduct).filter(
On Jun 17, 12:49 pm, Moshe C. [EMAIL PROTECTED] wrote:
I have 3 tables:
general_product {id, name, price} mapped to GeneralProduct
electrical_product {id, name, price, voltage} mapped to
ElectricalProduct
food_product {id,name, price, calories} mapped to FoodProduct
1) I want to create
regarding union, maybe I am missing something basic. I use the
session.query() with the orm stuff. How do I get the selects from
those ?
On Jun 17, 8:23 pm, Michael Bayer [EMAIL PROTECTED] wrote:
On Jun 17, 12:49 pm, Moshe C. [EMAIL PROTECTED] wrote:
I have 3 tables:
general_product {id,
2) Since this smells of inheritance, I read about class
inheritance mapping but couldn't decide if and which method
applies here. Help would be greatly appreciated.
I think svil's assumption of joined table inheritance is incorrect
here, since each table contains name and price. This
2) Since this smells of inheritance, I read about class
inheritance mapping but couldn't decide if and which method
applies here. Help would be greatly appreciated.
I think svil's assumption of joined table inheritance is incorrect
here, since each table contains name and price. This
On Jun 17, 1:31 pm, Moshe C. [EMAIL PROTECTED] wrote:
regarding union, maybe I am missing something basic. I use the
session.query() with the orm stuff. How do I get the selects from
those ?
use the recipes outlined in the concrete table inheritance section.
An example is there which shows
