31 lines
902 B
Python
31 lines
902 B
Python
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import flask
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import sqlalchemy
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from sqlalchemy import create_engine, func
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from sqlalchemy.orm import scoped_session, sessionmaker
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session = scoped_session(sessionmaker())
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def init_db(db_url: str, echo: bool = False) -> None:
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"""Initialise databsae."""
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session.configure(bind=get_engine(db_url, echo=echo))
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def get_engine(db_url: str, echo: bool = False) -> sqlalchemy.engine.base.Engine:
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"""Create an engine object."""
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return create_engine(db_url, pool_recycle=3600, echo=echo)
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def init_app(app: flask.app.Flask, echo: bool = False) -> None:
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"""Initialise database connection within flask app."""
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db_url = app.config["DB_URL"]
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session.configure(bind=get_engine(db_url, echo=echo))
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@app.teardown_appcontext
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def shutdown_session(exception: Exception | None = None) -> None:
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session.remove()
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def now_utc():
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return func.timezone("utc", func.now())
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