Method _clear_changed_fields

mongoengine/base/document.py:548–584

Using _get_changed_fields iterate and remove any fields that are marked as changed.

(self)

                        remove(field)

    def _clear_changed_fields(self):
        """Using _get_changed_fields iterate and remove any fields that
        are marked as changed.
        """
        ReferenceField = _import_class("ReferenceField")
        GenericReferenceField = _import_class("GenericReferenceField")

        for changed in self._get_changed_fields():
            parts = changed.split(".")
            data = self
            for part in parts:
                if isinstance(data, list):
                    try:
                        data = data[int(part)]
                    except IndexError:
                        data = None
                elif isinstance(data, dict):
                    data = data.get(part, None)
                else:
                    field_name = data._reverse_db_field_map.get(part, part)
                    data = getattr(data, field_name, None)

                if not isinstance(data, LazyReference) and hasattr(
                    data, "_changed_fields"
                ):
                    if getattr(data, "_is_document", False):
                        continue

                    data._changed_fields = []
                elif isinstance(data, (list, tuple, dict)):
                    if hasattr(data, "field") and isinstance(
                        data.field, (ReferenceField, GenericReferenceField)
                    ):
                        continue
                    BaseDocument._nestable_types_clear_changed_fields(data)

        self._changed_fields = []

    @staticmethod
    def _nestable_types_clear_changed_fields(data):