doc-forge-remark/backend/database.py

70 lines
3.8 KiB
Python

from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
from sqlalchemy import inspect, text
from sqlalchemy.orm import DeclarativeBase
from config import settings
engine = create_async_engine(settings.DATABASE_URL, echo=settings.DEBUG, pool_size=10, max_overflow=20)
async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
class Base(DeclarativeBase):
pass
async def get_db():
async with async_session() as session:
try:
yield session
finally:
await session.close()
async def init_db():
from models.template import Template
from models.paragraph import Paragraph
from models.ai_model import AiModel
from models.document import Document
from models.generation_log import GenerationLog
from models.reference_file import ReferenceFile
from models.template_block import TemplateBlock
async with engine.begin() as conn:
await conn.run_sync(Base.metadata.create_all)
dialect_name = conn.dialect.name
# template_blocks 新增列
block_columns = await conn.run_sync(lambda sync_conn: [column["name"] for column in inspect(sync_conn).get_columns("template_blocks")])
if "anchor_start_index" not in block_columns:
await conn.execute(text("ALTER TABLE template_blocks ADD COLUMN anchor_start_index INT DEFAULT 0"))
if "anchor_end_index" not in block_columns:
await conn.execute(text("ALTER TABLE template_blocks ADD COLUMN anchor_end_index INT DEFAULT 0"))
if "html_snippet" not in block_columns:
await conn.execute(text("ALTER TABLE template_blocks ADD COLUMN html_snippet TEXT"))
# generation_logs 新增 block_id
log_columns = await conn.run_sync(lambda sync_conn: [column["name"] for column in inspect(sync_conn).get_columns("generation_logs")])
if "block_id" not in log_columns:
await conn.execute(text("ALTER TABLE generation_logs ADD COLUMN block_id INT DEFAULT NULL"))
await conn.execute(text("ALTER TABLE generation_logs MODIFY COLUMN paragraph_id INT DEFAULT NULL"))
columns = await conn.run_sync(lambda sync_conn: [column["name"] for column in inspect(sync_conn).get_columns("ai_models")])
if "supports_streaming" not in columns:
if dialect_name == "sqlite":
await conn.execute(text("ALTER TABLE ai_models ADD COLUMN supports_streaming BOOLEAN DEFAULT 0"))
else:
await conn.execute(text("ALTER TABLE ai_models ADD COLUMN supports_streaming TINYINT(1) DEFAULT 0"))
if "enable_reasoning" not in columns:
if dialect_name == "sqlite":
await conn.execute(text("ALTER TABLE ai_models ADD COLUMN enable_reasoning BOOLEAN DEFAULT 0"))
else:
await conn.execute(text("ALTER TABLE ai_models ADD COLUMN enable_reasoning TINYINT(1) DEFAULT 0"))
document_columns = await conn.run_sync(
lambda sync_conn: [column["name"] for column in inspect(sync_conn).get_columns("documents")]
)
if "request_payload_json" not in document_columns:
await conn.execute(text("ALTER TABLE documents ADD COLUMN request_payload_json TEXT"))
paragraph_columns = await conn.run_sync(
lambda sync_conn: [column["name"] for column in inspect(sync_conn).get_columns("paragraphs")]
)
if "anchor_title" not in paragraph_columns:
await conn.execute(text("ALTER TABLE paragraphs ADD COLUMN anchor_title VARCHAR(500) DEFAULT ''"))
await conn.execute(text("UPDATE paragraphs SET anchor_title = title WHERE anchor_title = '' OR anchor_title IS NULL"))
if "write_mode" not in paragraph_columns:
await conn.execute(text("ALTER TABLE paragraphs ADD COLUMN write_mode VARCHAR(30) DEFAULT 'replace_section'"))