Multi-level polymorphism is not supported. See
https://bitbucket.org/zzzeek/sqlalchemy/issues/2555/cascading-polymorphic-ons
which includes an example of how to get multi-level polymorphic by
using a single polymorphic_on value, using COALESCE.
On Wed, Nov 7, 2018 at 4:45 AM wrote:
>
> Hi all
>
>
Hi all
I have a phone table in MySQL which has morphology based on its two
columns, "is_deleted" and "is_active"
If "is_deleted" column is 1, then we don't care about "is_active" column.
If "is_deleted" column is 0, it means that the phone exists and can be
either active or inactive based on "i
