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webref/backend/alembic/env.py
Danilo Reyes 948fe591dc
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phase 13
2025-11-02 14:48:03 -06:00

92 lines
2.4 KiB
Python

import os
import sys
from logging.config import fileConfig
from pathlib import Path
from sqlalchemy import engine_from_config, pool
from alembic import context
# Add parent directory to path to import app modules
sys.path.insert(0, str(Path(__file__).parent.parent))
# Import all models here for autogenerate to detect them
from app.database.base import Base # noqa
from app.database.models import * # noqa
# this is the Alembic Config object, which provides
# access to the values within the .ini file in use.
config = context.config
# Interpret the config file for Python logging.
# This line sets up loggers basically.
if config.config_file_name is not None:
fileConfig(config.config_file_name)
# add your model's MetaData object here
# for 'autogenerate' support
target_metadata = Base.metadata
# Get database URL from environment or config
database_url = os.getenv("DATABASE_URL")
if database_url:
config.set_main_option("sqlalchemy.url", database_url)
def run_migrations_offline() -> None:
"""Run migrations in 'offline' mode.
This configures the context with just a URL
and not an Engine, though an Engine is acceptable
here as well. By skipping the Engine creation
we don't even need a DBAPI to be available.
Calls to context.execute() here emit the given string to the
script output.
"""
url = config.get_main_option("sqlalchemy.url")
context.configure(
url=url,
target_metadata=target_metadata,
literal_binds=True,
dialect_opts={"paramstyle": "named"},
compare_type=True,
compare_server_default=True,
)
with context.begin_transaction():
context.run_migrations()
def run_migrations_online() -> None:
"""Run migrations in 'online' mode.
In this scenario we need to create an Engine
and associate a connection with the context.
"""
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,
compare_type=True,
compare_server_default=True,
)
with context.begin_transaction():
context.run_migrations()
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()