def run_migrations_online():
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
engine = db_utils.get_engine()
with engine.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata
)
with context.begin_transaction():
context.run_migrations()
def _version(conf):
engine = db_utils.get_engine()
with engine.connect() as conn:
context = alembic_migration.MigrationContext.configure(conn)
return context.get_current_revision()
