Function m2m_convert

django/core/serializers/base.py:361–369

(value)

    if hasattr(model._default_manager, "get_by_natural_key"):

        def m2m_convert(value):
            if hasattr(value, "__iter__") and not isinstance(value, str):
                return (
                    model._default_manager.db_manager(using)
                    .get_by_natural_key(*value)
                    .pk
                )
            else:
                return model._meta.pk.to_python(value)

    else: