peewee-migrate-dev 0.0.1a0

Dependency Note

For Peewee<3.0 please use Peewee-Migrate==0.14.0.

From shell

Getting help:

$ pw_migrate --help

Usage: pw_migrate [OPTIONS] COMMAND [ARGS]...

Options:
    --help  Show this message and exit.

Commands:
    create   Create migration.
    migrate  Run migrations.
    rollback Rollback migration.

Create migration:

$ pw_migrate create --help

Usage: pw_migrate create [OPTIONS] NAME

    Create migration.

Options:
    --auto                  FLAG  Scan sources and create db migrations automatically. Supports autodiscovery.
    --auto-source           TEXT  Set to python module path for changes autoscan (e.g. 'package.models'). Current directory will be recursively scanned by default.
    --database              TEXT  Database connection
    --directory             TEXT  Directory where migrations are stored
    -v, --verbose
    --help                        Show this message and exit.

Run migrations:

$ pw_migrate migrate --help

Usage: pw_migrate migrate [OPTIONS]

    Run migrations.

Options:
    --name TEXT       Select migration
    --database TEXT   Database connection
    --directory TEXT  Directory where migrations are stored
    -v, --verbose
    --help            Show this message and exit.

From python

from peewee_migrate import Router
from peewee import SqliteDatabase

router = Router(SqliteDatabase('test.db'))

# Create migration
router.create('migration_name')

# Run migration/migrations
router.run('migration_name')

# Run all unapplied migrations
router.run()

Migration files

By default, migration files are looked up in os.getcwd()/migrations directory, but custom directory can be given.

Migration files are sorted and applied in ascending order per their filename.

Each migration file must specify migrate() function and may specify rollback() function:

def migrate(migrator, database, fake=False, **kwargs):
    pass

def rollback(migrator, database, fake=False, **kwargs):
    pass