abe9fc166b
- Initialize Alembic with alembic init alembic - Configure alembic.ini to use DATABASE_URL from environment - Configure alembic/env.py to import Base and models metadata - Generate initial migration: c92fc544a483_initial_schema - Migration creates all 4 tables: users, api_keys, api_tokens, usage_stats - Migration includes all indexes, constraints, and foreign keys - Test upgrade/downgrade cycle works correctly Alembic commands: - alembic upgrade head - alembic downgrade -1 - alembic revision --autogenerate -m 'message' Tests: 13 migration tests pass
102 lines
2.9 KiB
Python
102 lines
2.9 KiB
Python
"""Alembic environment configuration.
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T11: Setup Alembic and initial schema migration
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"""
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import os
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import sys
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from logging.config import fileConfig
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from sqlalchemy import engine_from_config, pool
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from alembic import context
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# Add src to path to import models
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sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..', 'src'))
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# Import models to register them with Base
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from openrouter_monitor.database import Base
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from openrouter_monitor.models import User, ApiKey, UsageStats, ApiToken
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# this is the Alembic Config object, which provides
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# access to the values within the .ini file in use.
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config = context.config
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# Override sqlalchemy.url with environment variable if available
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# This allows DATABASE_URL from .env to be used
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database_url = os.getenv('DATABASE_URL')
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if database_url:
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config.set_main_option('sqlalchemy.url', database_url)
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# Interpret the config file for Python logging.
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# This line sets up loggers basically.
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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# Set target_metadata to the Base.metadata from our models
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# This is required for 'autogenerate' support
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target_metadata = Base.metadata
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def run_migrations_offline() -> None:
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"""Run migrations in 'offline' mode.
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This configures the context with just a URL
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and not an Engine, though an Engine is acceptable
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here as well. By skipping the Engine creation
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we don't even need a DBAPI to be available.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=url,
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online() -> None:
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"""Run migrations in 'online' mode.
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In this scenario we need to create an Engine
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and associate a connection with the context.
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"""
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# For SQLite, we need to handle check_same_thread=False
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db_url = config.get_main_option("sqlalchemy.url")
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if db_url and 'sqlite' in db_url:
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# SQLite specific configuration
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from sqlalchemy import create_engine
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connectable = create_engine(
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db_url,
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connect_args={"check_same_thread": False},
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poolclass=pool.NullPool,
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)
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else:
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connectable = engine_from_config(
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config.get_section(config.config_ini_section, {}),
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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with connectable.connect() as connection:
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context.configure(
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connection=connection, target_metadata=target_metadata
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)
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with context.begin_transaction():
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context.run_migrations()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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