I forgot to state that all derived abstract orm classes (e.g
Source_orm_lvl0, Source_orm_lvlA) also need the class attribute
'__abstract__= True' set
> myproj_lvl0
> | - meta_def [metadata0 Metadata; source_table = Tables(...)]
> | - orm_def [from .meta_def import metadata, source_table;
>
So, I was eventually able to solve this.
I followed this exact pattern as in my last post:
--- level 0 ; 'myproj_lvl0'---
metadata//Tables
>-plugs-into-<
Base
\/
OBJ01_Declared_lvl0 > OBJ01_Mapped_lvl0
--- level A ; module 'myproj_lvlA' ---
\/
OBJ01_Extended_lvlA > OBJ01_Mapped_lvlA
--- level B
>
>
> it's the "functional at each level" part that I think goes beyond what
> is practical. When you run an operation on a superclass, and it
> expects to do ORM operations, it has to be referring to the ultimate
> mapped class. The ORM is designed with the idea that the concrete
> instant
>
> Thank you, Mike, for having a look at my clumsy code (there were some
> mistakes in the code, I only saw later) and making this effort.
>
Firstly, I have done a bit more tinkering yesterday, and also got aware,
that the Mapper or the internal cranking for sqlalchemy in this
hierarchical sc
Hi, I am struggling since some days to extend and implement common class
inheritance for the SQLAlchemy ORM objects that I define: Here is the to be
achieved task:
1. In a first step, I want to use sqlalchemy to model my database and the
ORM, aka define tables, define the ORMs and their relation
