document.py 文件源码

def __eq__(self, other):
        from .data_objects import Reference
        if self.pk is None:
            return self is other
        elif isinstance(other, self.__class__) and other.pk is not None:
            return self.pk == other.pk
        elif isinstance(other, DBRef):
            return other.collection == self.collection.name and other.id == self.pk
        elif isinstance(other, Reference):
            return isinstance(self, other.document_cls) and self.pk == other.pk
        return NotImplemented