alembic-autogenerate-enums 0.1.0

Alembic hook that allows enums values to be upgraded and downgraded in migrations automatically

alembic-autogenerate-enums

This package implements an Alembic hook that causes alembic revision --autogenerate to output PostgreSQL ALTER TYPE .. ADD VALUE SQL statements as part of new migrations.

Usage

Add the line:

import alembic_autogenerate_enums

To the top of your env.py.

Notes

Since ALTER TYPE .. ADD VALUE cannot run transactionally, each op.sync_enum_values() call creates its own temporary private DB connection. See https://bitbucket.org/zzzeek/alembic/issues/123/a-way-to-run-non-transactional-ddl

Tests

We have incredibly basic tests in a sample project.

mkvirtualenv alembic-autogenerate

Install the main autogenerate package and then the test harness:

pip install -e .
pip install -e test-harness

createuser alembic-autogenerate
createdb -O alembic-autogenerate alembic-autogenerate_db

cd test-harness && pytest