52 lines
1.8 KiB
Python
52 lines
1.8 KiB
Python
from collections.abc import Generator
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from sqlalchemy import create_engine, text
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from sqlalchemy.orm import DeclarativeBase, Session, sessionmaker
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DATABASE_URL = "sqlite:///./data/clawfort.db"
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engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
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SessionLocal = sessionmaker(bind=engine, autocommit=False, autoflush=False)
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class Base(DeclarativeBase):
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pass
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def get_db() -> Generator[Session, None, None]:
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close()
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def init_db() -> None:
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from backend.models import NewsItem, NewsTranslation # noqa: F401
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Base.metadata.create_all(bind=engine)
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migration_sql = {
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"news_items": {
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"tldr_points": "ALTER TABLE news_items ADD COLUMN tldr_points TEXT",
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"summary_body": "ALTER TABLE news_items ADD COLUMN summary_body TEXT",
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"source_citation": "ALTER TABLE news_items ADD COLUMN source_citation TEXT",
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"summary_image_url": "ALTER TABLE news_items ADD COLUMN summary_image_url VARCHAR(2000)",
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"summary_image_credit": "ALTER TABLE news_items ADD COLUMN summary_image_credit VARCHAR(500)",
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},
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"news_translations": {
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"tldr_points": "ALTER TABLE news_translations ADD COLUMN tldr_points TEXT",
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"summary_body": "ALTER TABLE news_translations ADD COLUMN summary_body TEXT",
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"source_citation": "ALTER TABLE news_translations ADD COLUMN source_citation TEXT",
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},
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}
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with engine.begin() as conn:
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for table, columns in migration_sql.items():
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existing_cols = {
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row[1] for row in conn.execute(text(f"PRAGMA table_info({table})")).fetchall()
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}
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for col_name, ddl in columns.items():
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if col_name not in existing_cols:
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conn.execute(text(ddl))
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