apac-ops-bot/backend/alembic/env.py
SamoilenkoVadym a8151fbe66 Add comprehensive backend test suite and Phase 1 foundation
Backend Tests:
- Add pytest configuration with async support (conftest.py)
- Add model tests: User, Conversation, Message, TokenUsage, Session, UserMemory
- Add configuration tests: Settings validation and environment variables
- Add API tests: Health endpoint and future endpoint stubs
- Add database tests: Connection, transactions, query execution

Phase 1 Foundation:
- FastAPI application structure with main.py
- SQLAlchemy async models for all entities
- Alembic migrations setup
- Configuration management via Pydantic Settings
- Logging system (English only)
- Docker multi-stage builds for backend
- Docker Compose orchestration (PostgreSQL, Redis, backend)
- Frontend React + TypeScript structure
- Dark & Gold theme CSS implementation
- Environment configuration examples

All code and comments in English as per requirements.
Tests cover model relationships, cascade deletes, and constraints.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
2026-01-27 14:24:59 +00:00

103 lines
2.8 KiB
Python

"""
Alembic environment configuration
This module is called by Alembic when running migrations.
It sets up the database connection and model metadata.
"""
from logging.config import fileConfig
from sqlalchemy import pool
from sqlalchemy.engine import Connection
from sqlalchemy.ext.asyncio import async_engine_from_config
from alembic import context
import asyncio
# Import the Base and all models
from app.database import Base
from app.models import * # noqa - Import all models
from app.config import settings
# this is the Alembic Config object, which provides
# access to the values within the .ini file in use.
config = context.config
# Override sqlalchemy.url with value from settings
config.set_main_option("sqlalchemy.url", settings.DATABASE_URL)
# 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
# other values from the config, defined by the needs of env.py,
# can be acquired:
# my_important_option = config.get_main_option("my_important_option")
# ... etc.
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"},
)
with context.begin_transaction():
context.run_migrations()
def do_run_migrations(connection: Connection) -> None:
"""Helper function to run migrations with a connection"""
context.configure(connection=connection, target_metadata=target_metadata)
with context.begin_transaction():
context.run_migrations()
async def run_async_migrations() -> None:
"""
Run migrations in 'online' mode with async engine
"""
connectable = async_engine_from_config(
config.get_section(config.config_ini_section, {}),
prefix="sqlalchemy.",
poolclass=pool.NullPool,
)
async with connectable.connect() as connection:
await connection.run_sync(do_run_migrations)
await connectable.dispose()
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.
"""
asyncio.run(run_async_migrations())
if context.is_offline_mode():
run_migrations_offline()
else:
run_migrations_online()