def sync(self, version=None, current_version=None):
"""
Place a database under migration control and upgrade/downgrade it,
creating first if necessary.
"""
if current_version not in (None, 'None'):
migration.db_version_control(db_api.get_engine(),
db_migration.MIGRATE_REPO_PATH,
version=current_version)
migration.db_sync(db_api.get_engine(),
db_migration.MIGRATE_REPO_PATH,
version,
sanity_check=self._need_sanity_check())
def db_sync(version=None, init_version=0):
"""Migrate the database to `version` or the most recent version."""
return IMPL.db_sync(engine=db_api.get_engine(),
abs_path=MIGRATE_REPO_PATH,
version=version,
init_version=init_version)
def version_control(self, version=None):
"""Place a database under migration control"""
migration.db_version_control(db_api.get_engine(),
db_migration.MIGRATE_REPO_PATH, version)
def downgrade(self, version=None):
"""Downgrade the database's migration level"""
migration.db_sync(db_api.get_engine(),
db_migration.MIGRATE_REPO_PATH,
version,
sanity_check=self._need_sanity_check())
def version(self):
"""Print database's current migration level"""
print(
migration.db_version(db_api.get_engine(),
db_migration.MIGRATE_REPO_PATH,
db_migration.INIT_VERSION))