pryscraper/alembic/env.py

53 lines
1.4 KiB
Python

import os
from logging.config import fileConfig
from sqlalchemy import engine_from_config, pool
from alembic import context
from db import Base, _resolve_database_url
config = context.config
if config.config_file_name is not None:
fileConfig(config.config_file_name)
# Always use the same URL resolution logic as the application.
config.set_main_option("sqlalchemy.url", os.getenv("PRY_DATABASE_URL") or _resolve_database_url())
target_metadata = Base.metadata
exclude_tables = {"spatial_ref_sys"}
def run_migrations_offline() -> None:
url = config.get_main_option("sqlalchemy.url")
context.configure(
url=url,
target_metadata=target_metadata,
literal_binds=True,
dialect_opts={"paramstyle": "named"},
include_exclude_tables=exclude_tables,
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online() -> None:
connectable = engine_from_config(
config.get_section(config.config_ini_section, {}),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
with connectable.connect() as connection:
context.configure(
connection=connection,
target_metadata=target_metadata,
include_exclude_tables=exclude_tables,
)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()