Method _create_or_get

tortoise/models.py:1295–1311

Try to create, if fails with IntegrityError then try to get

(
        cls, db: BaseDBAsyncClient, defaults: dict, **kwargs
    )

    @classmethod
    async def _create_or_get(
        cls, db: BaseDBAsyncClient, defaults: dict, **kwargs
    ) -> tuple[Self, bool]:
        """Try to create, if fails with IntegrityError then try to get"""
        for key in defaults.keys() & kwargs.keys():
            if (default_value := defaults[key]) != (query_value := kwargs[key]):
                raise ParamsError(f"Conflict value with {key=}: {default_value=} vs {query_value=}")
        merged_defaults = {**kwargs, **defaults}
        try:
            async with in_transaction(connection_name=db.connection_name) as connection:
                return await cls.create(using_db=connection, **merged_defaults), True
        except IntegrityError as exc:
            try:
                return await cls.filter(**kwargs).using_db(db).get(), False
            except DoesNotExist:
                pass
            raise exc

    @classmethod
    def _db_queryset(