Samir Boulahtit
3614d448e4
Database & Migrations: - Update all Alembic migrations for PostgreSQL compatibility - Remove SQLite-specific syntax (AUTOINCREMENT, etc.) - Add database utility helpers for PostgreSQL operations - Fix services to use PostgreSQL-compatible queries Documentation: - Add comprehensive Docker deployment guide - Add production deployment documentation - Add infrastructure architecture documentation - Update database setup guide for PostgreSQL-only - Expand troubleshooting guide Architecture & Validation: - Add migration.yaml rules for SQL compatibility checking - Enhance validate_architecture.py with migration validation - Update architecture rules to validate Alembic migrations Development: - Fix duplicate install-all target in Makefile - Add Celery/Redis validation to install.py script - Add docker-compose.test.yml for CI testing - Add squash_migrations.py utility script - Update tests for PostgreSQL compatibility - Improve test fixtures in conftest.py Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
57 lines
1.3 KiB
Python
57 lines
1.3 KiB
Python
# app/core/database.py
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"""
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Database configuration and session management.
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This module provides classes and functions for:
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- PostgreSQL database engine creation and configuration
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- Session management with connection pooling
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- Database dependency for FastAPI routes
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Note: This project uses PostgreSQL only. SQLite is not supported.
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"""
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import logging
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from sqlalchemy import create_engine
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from sqlalchemy.orm import declarative_base, sessionmaker
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from sqlalchemy.pool import QueuePool
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from .config import settings, validate_database_url
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# Validate database URL on import
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validate_database_url()
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# Create PostgreSQL engine with connection pooling
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engine = create_engine(
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settings.database_url,
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poolclass=QueuePool,
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pool_size=10,
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max_overflow=20,
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pool_pre_ping=True,
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echo=False,
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)
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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Base = declarative_base()
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logger = logging.getLogger(__name__)
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def get_db():
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"""
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Database session dependency for FastAPI routes.
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Yields a database session and ensures proper cleanup.
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Handles exceptions and rolls back transactions on error.
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"""
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db = SessionLocal()
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try:
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yield db
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except Exception as e:
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logger.error(f"Database session error: {e}")
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db.rollback()
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raise
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finally:
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db.close()
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