89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
"""
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Database configuration and session management
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"""
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from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
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from sqlalchemy.orm import declarative_base
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from sqlalchemy import event, text
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import logging
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import os
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from pathlib import Path
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from app.config import settings
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logger = logging.getLogger(__name__)
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# Create database directory if it doesn't exist
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db_path = Path(settings.database_url.replace("sqlite+aiosqlite:///", ""))
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db_path.parent.mkdir(parents=True, exist_ok=True)
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# Create async engine
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# SQLite doesn't support pool configuration
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if "sqlite" in settings.database_url:
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engine = create_async_engine(
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settings.database_url,
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echo=False, # Set to True for SQL debugging
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connect_args={
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"check_same_thread": False, # SQLite specific
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"timeout": 30
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}
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)
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else:
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engine = create_async_engine(
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settings.database_url,
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echo=False, # Set to True for SQL debugging
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pool_size=settings.performance.db_pool_size,
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pool_recycle=settings.performance.db_pool_recycle
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)
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# Create async session factory
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AsyncSessionLocal = async_sessionmaker(
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engine,
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class_=AsyncSession,
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expire_on_commit=False
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)
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# Base class for models
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Base = declarative_base()
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async def get_db() -> AsyncSession:
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"""Dependency to get database session"""
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async with AsyncSessionLocal() as session:
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try:
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yield session
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finally:
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await session.close()
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async def init_db():
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"""Initialize database, create tables if they don't exist"""
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async with engine.begin() as conn:
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# Import all models to register them with Base
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from app.models import Photo, Folder, SourceRoot, Tag, PhotoTag, Heap, HeapPhoto, Embedding
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# Create all tables
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await conn.run_sync(Base.metadata.create_all)
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# Enable WAL mode for SQLite (better concurrency)
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if "sqlite" in settings.database_url:
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await conn.execute(text("PRAGMA journal_mode=WAL"))
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await conn.execute(text("PRAGMA synchronous=NORMAL"))
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await conn.execute(text("PRAGMA cache_size=10000"))
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await conn.execute(text("PRAGMA temp_store=MEMORY"))
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logger.info("Database initialized successfully")
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async def create_fts_table():
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"""Create Full-Text Search table for SQLite"""
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if "sqlite" in settings.database_url:
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async with engine.begin() as conn:
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# Create FTS5 virtual table for full-text search
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await conn.execute(text("""
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CREATE VIRTUAL TABLE IF NOT EXISTS photos_fts USING fts5(
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photo_id UNINDEXED,
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filename,
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user_title,
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user_notes,
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exif_text,
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tokenize='unicode61'
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)
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"""))
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logger.info("FTS5 table created successfully") |