utils.py 文件源码

def get_latest_analysis(ecosystem, package, version, db_session=None):
    """Get latest analysis for the given EPV."""
    if not db_session:
        storage = StoragePool.get_connected_storage("BayesianPostgres")
        db_session = storage.session

    try:
        return db_session.query(Analysis).\
            filter(Ecosystem.name == ecosystem).\
            filter(Package.name == package).\
            filter(Version.identifier == version).\
            order_by(Analysis.started_at.desc()).\
            first()
    except SQLAlchemyError:
        db_session.rollback()
        raise