97 lines
2.8 KiB
Python
97 lines
2.8 KiB
Python
import os
|
|
import sys
|
|
from logging.config import fileConfig
|
|
|
|
from sqlalchemy import engine_from_config, pool
|
|
from alembic import context
|
|
from dotenv import load_dotenv
|
|
|
|
# Add the parent directory to the path so we can import our models
|
|
sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
|
|
|
|
# Load environment variables from .env file
|
|
load_dotenv()
|
|
|
|
# Import all models so Alembic can detect them
|
|
from models import Base
|
|
import models # This ensures all models are imported
|
|
|
|
# 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)
|
|
|
|
# Set the SQLAlchemy URL from environment variable
|
|
database_url = os.getenv("DATABASE_URL")
|
|
if database_url:
|
|
config.set_main_option("sqlalchemy.url", database_url)
|
|
else:
|
|
raise ValueError(
|
|
"DATABASE_URL environment variable not set. "
|
|
"Please create a .env file with DATABASE_URL=postgresql://user:password@host:port/dbname"
|
|
)
|
|
|
|
# Add your model's MetaData object here for 'autogenerate' support
|
|
target_metadata = Base.metadata
|
|
|
|
|
|
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, # Detect type changes
|
|
compare_server_default=True, # Detect default value changes
|
|
)
|
|
|
|
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, # Detect type changes
|
|
compare_server_default=True, # Detect default value changes
|
|
)
|
|
|
|
with context.begin_transaction():
|
|
context.run_migrations()
|
|
|
|
|
|
if context.is_offline_mode():
|
|
run_migrations_offline()
|
|
else:
|
|
run_migrations_online()
|