On Oct 25, 2016 5:53 PM, "Alfred Soeng" <[email protected]> wrote:
>
> Hi,
>
> If I want to map a struct to 2 tables who have mostly the same info but
different format, is that feasible?
> e.g
>
> struct T {
> 1. id
> 2. name}
>
> a_mapper = mapper(T, m1, properties={...})
> b_mapper = mapper(T, m2, properties={...})
>
> I tried to specify the b_mapper to non-primary one, but when I run the
b_mapper model, it's still contain the a_mapper mapping information.
> Is there any way to do this? Or I should create 2 structs to map to 2
models.

The primary mapper will instrument the class with attributes corresponding
to that primary table.   This is basically the whole reason people map
classes, to get that instrumentation.  If you want the class to have
totally different attributes per each table you would make a subclass per
mapping and just map them separately.  Whatever you want common between
them goes on the base class.

>
> --
> SQLAlchemy -
> The Python SQL Toolkit and Object Relational Mapper
>
> http://www.sqlalchemy.org/
>
> To post example code, please provide an MCVE: Minimal, Complete, and
Verifiable Example. See http://stackoverflow.com/help/mcve for a full
description.
> ---
> You received this message because you are subscribed to the Google Groups
"sqlalchemy" group.
> To unsubscribe from this group and stop receiving emails from it, send an
email to [email protected].
> To post to this group, send email to [email protected].
> Visit this group at https://groups.google.com/group/sqlalchemy.
> For more options, visit https://groups.google.com/d/optout.

-- 
SQLAlchemy - 
The Python SQL Toolkit and Object Relational Mapper

http://www.sqlalchemy.org/

To post example code, please provide an MCVE: Minimal, Complete, and Verifiable 
Example.  See  http://stackoverflow.com/help/mcve for a full description.
--- 
You received this message because you are subscribed to the Google Groups 
"sqlalchemy" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
Visit this group at https://groups.google.com/group/sqlalchemy.
For more options, visit https://groups.google.com/d/optout.

Reply via email to