I am using plone.restapi for creating objects containing fields with UID references like:
gl_refs_onkopedia_p = schema.List(
title=_('References to Onkopedia-P'),
description=_('References to Onkopedia-P'),
required=False,
value_type=schema.Choice(
source=OnkopediaPathBinder(['onkopedia-p'])
),
default=[],
The configured vocabulary sources contains a list of object uids matching a particular catalog query.
As part of a migration the related vocabulary values (the UIDs of the related objects) are not yet available and lead to this error:
Traceback (innermost last):
Module ZPublisher.WSGIPublisher, line 128, in transaction_pubevents
Module ZPublisher.WSGIPublisher, line 268, in publish_module
Module ZPublisher.WSGIPublisher, line 210, in publish
Module ZPublisher.mapply, line 85, in mapply
Module ZPublisher.WSGIPublisher, line 57, in call_object
Module plone.rest.service, line 23, in __call__
Module plone.restapi.services, line 19, in render
Module plone.restapi.services.content.add, line 70, in reply
Module plone.restapi.deserializer.dxcontent, line 129, in __call__
zExceptions.BadRequest: [{'message': 'Constraint not satisfied', 'field': 'gl_refs_onkopedia', 'error': ConstraintNotSatisfied('e76d6fae2b48461080e5170d6d59ab33', '')}, {'message': 'Constraint not satisfied', 'field': 'gl_refs_my_onkopedia', 'error': ConstraintNotSatisfied('2e83a9b71f784046ae315a63b9a96299', '')}, {'message': 'Constraint not satisfied', 'field': 'gl_refs_knowledge_database', 'error': ConstraintNotSatisfied('961089d8febbd6eb8604ea618eceba65', '')}]