document.py 文件源码

def __unset_gj_flag_sub_field(self, instance, fld, cur_depth):
        """Unset $$good_json$$ to subfield."""
        from .fields import FollowReferenceField

        def unset_flag(fld):
            setattr(fld, "$$good_json$$", None)
            setattr(fld, "$$cur_depth$$", None)
            delattr(fld, "$$good_json$$")
            delattr(fld, "$$cur_depth$$")

        @singledispatch
        def unset_flag_recursive(fld, instance):
            unset_flag(fld)

        @unset_flag_recursive.register(db.ListField)
        def unset_flag_list(fld, instance):
            unset_flag(fld.field)

        @unset_flag_recursive.register(db.EmbeddedDocumentField)
        def unset_flag_emb(fld, instance):
            if isinstance(instance, Helper):
                instance.end_goodjson(cur_depth)

        @unset_flag_recursive.register(FollowReferenceField)
        def unset_flag_self(fld, instance):
            unset_flag(fld)

        unset_flag_recursive(fld, instance)