3f225e7647
Same pattern as view_count: model column, yt-dlp extraction, SQL select, VideoDetail field, startup migration, and display in Watch meta row. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
101 lines
3.2 KiB
Python
101 lines
3.2 KiB
Python
from sqlalchemy import create_engine, event, text
|
|
from sqlalchemy.orm import sessionmaker, DeclarativeBase
|
|
from .config import settings
|
|
|
|
|
|
engine = create_engine(
|
|
settings.database_url,
|
|
connect_args={"check_same_thread": False},
|
|
echo=False,
|
|
)
|
|
|
|
|
|
@event.listens_for(engine, "connect")
|
|
def set_sqlite_pragma(dbapi_conn, _):
|
|
cursor = dbapi_conn.cursor()
|
|
cursor.execute("PRAGMA journal_mode=WAL")
|
|
cursor.execute("PRAGMA foreign_keys=ON")
|
|
cursor.close()
|
|
|
|
|
|
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
|
|
|
|
|
|
class Base(DeclarativeBase):
|
|
pass
|
|
|
|
|
|
FTS_SETUP_SQL = """
|
|
CREATE VIRTUAL TABLE IF NOT EXISTS videos_fts USING fts5(
|
|
title, description, content=videos, content_rowid=id
|
|
);
|
|
|
|
CREATE VIRTUAL TABLE IF NOT EXISTS channels_fts USING fts5(
|
|
name, description, content=channels, content_rowid=id
|
|
);
|
|
|
|
CREATE TRIGGER IF NOT EXISTS videos_ai AFTER INSERT ON videos BEGIN
|
|
INSERT INTO videos_fts(rowid, title, description)
|
|
VALUES (new.id, new.title, COALESCE(new.description, ''));
|
|
END;
|
|
|
|
CREATE TRIGGER IF NOT EXISTS videos_ad AFTER DELETE ON videos BEGIN
|
|
INSERT INTO videos_fts(videos_fts, rowid, title, description)
|
|
VALUES ('delete', old.id, old.title, COALESCE(old.description, ''));
|
|
END;
|
|
|
|
CREATE TRIGGER IF NOT EXISTS videos_au AFTER UPDATE ON videos BEGIN
|
|
INSERT INTO videos_fts(videos_fts, rowid, title, description)
|
|
VALUES ('delete', old.id, old.title, COALESCE(old.description, ''));
|
|
INSERT INTO videos_fts(rowid, title, description)
|
|
VALUES (new.id, new.title, COALESCE(new.description, ''));
|
|
END;
|
|
|
|
CREATE TRIGGER IF NOT EXISTS channels_ai AFTER INSERT ON channels BEGIN
|
|
INSERT INTO channels_fts(rowid, name, description)
|
|
VALUES (new.id, new.name, COALESCE(new.description, ''));
|
|
END;
|
|
|
|
CREATE TRIGGER IF NOT EXISTS channels_ad AFTER DELETE ON channels BEGIN
|
|
INSERT INTO channels_fts(channels_fts, rowid, name, description)
|
|
VALUES ('delete', old.id, old.name, COALESCE(old.description, ''));
|
|
END;
|
|
|
|
CREATE TRIGGER IF NOT EXISTS channels_au AFTER UPDATE ON channels BEGIN
|
|
INSERT INTO channels_fts(channels_fts, rowid, name, description)
|
|
VALUES ('delete', old.id, old.name, COALESCE(old.description, ''));
|
|
INSERT INTO channels_fts(rowid, name, description)
|
|
VALUES (new.id, new.name, COALESCE(new.description, ''));
|
|
END;
|
|
"""
|
|
|
|
|
|
def _add_column_if_missing(raw_conn, table: str, column: str, definition: str):
|
|
existing = {row[1] for row in raw_conn.execute(f"PRAGMA table_info({table})")}
|
|
if column not in existing:
|
|
raw_conn.execute(f"ALTER TABLE {table} ADD COLUMN {column} {definition}")
|
|
|
|
|
|
def init_db():
|
|
from . import models # noqa: F401
|
|
|
|
Base.metadata.create_all(bind=engine)
|
|
raw_conn = engine.raw_connection()
|
|
try:
|
|
# Column migrations — safe to run on every startup
|
|
_add_column_if_missing(raw_conn, "videos", "view_count", "INTEGER")
|
|
_add_column_if_missing(raw_conn, "videos", "like_count", "INTEGER")
|
|
raw_conn.commit()
|
|
# executescript handles multi-statement SQL including trigger BEGIN...END blocks
|
|
raw_conn.executescript(FTS_SETUP_SQL)
|
|
finally:
|
|
raw_conn.close()
|
|
|
|
|
|
def get_db():
|
|
db = SessionLocal()
|
|
try:
|
|
yield db
|
|
finally:
|
|
db.close()
|