def create(self, validated_data):
node = Node.load(validated_data.pop('node', None))
if not node:
raise exceptions.NotFound('Unable to find Node with specified id.')
elif node.is_deleted:
raise exceptions.ValidationError(
'Cannot create a preprint from a deleted node.')
auth = get_user_auth(self.context['request'])
if not node.has_permission(auth.user, permissions.ADMIN):
raise exceptions.PermissionDenied
primary_file = validated_data.pop('primary_file', None)
if not primary_file:
raise exceptions.ValidationError(
detail=
'You must specify a valid primary_file to create a preprint.')
provider = validated_data.pop('provider', None)
if not provider:
raise exceptions.ValidationError(
detail='You must specify a valid provider to create a preprint.'
)
if PreprintService.find(
Q('node', 'eq', node) & Q('provider', 'eq', provider)).count():
conflict = PreprintService.find_one(
Q('node', 'eq', node) & Q('provider', 'eq', provider))
raise Conflict(
'Only one preprint per provider can be submitted for a node. Check `meta[existing_resource_id]`.',
meta={'existing_resource_id': conflict._id})
preprint = PreprintService(node=node, provider=provider)
self.set_field(preprint.set_primary_file,
primary_file,
auth,
save=True)
preprint.node._has_abandoned_preprint = True
preprint.node.save()
return self.update(preprint, validated_data)
