Class DummyNode

tortoise/migrations/graph.py:56–63

class DummyNode(Node):
    def __init__(self, key: MigrationKey, origin: MigrationKey, error_message: str):
        super().__init__(key)
        self.origin = origin
        self.error_message = error_message

    def raise_error(self) -> None:
        raise ValueError(self.error_message)


class MigrationGraph: