A migration library for SQLAlchemy.
Project description
SQLAltery
A migration library for SQLAlchemy. A cleaner frontend to Alembic.
Status
-
MetaDatadiffing (sqlaltery/compare.py) - apply ops to
MetaData(sqlaltery/ops.py:apply) - apply ops to
Connection(sqlaltery/ops.py:apply); all the heavy lifting is passed to Alembic's DDL - write migration to a file (
sqlaltery/command.py:_save_migration) - tests (95%)
- docs
Why not Alembic?
- Alembic diffs the head MD against current DB, not against latest migration
- Alembic has split upgrade/downgrade
- Alembic requires you to manually manage metadata in migrations (for doing queries)
- Alembic creates a bunch of files (alembic.ini, env.py). The default case should be simple: just create an
SQLAlteryand use it; customize by passing arguments.
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