def patch(self, pid, record, **kwargs):
"""Modify a record.
The data should be a JSON-patch, which will be applied to the record.
Procedure description:
#. The record is deserialized using the proper loader.
#. The ETag is checked.
#. The record is patched.
#. The HTTP response is built with the help of the link factory.
:param pid: Persistent identifier for record.
:param record: Record object.
:returns: The modified record.
"""
data = self.loaders[request.mimetype]()
if data is None:
raise InvalidDataRESTError()
self.check_etag(str(record.revision_id))
try:
record = record.patch(data)
except (JsonPatchException, JsonPointerException):
raise PatchJSONFailureRESTError()
record.commit()
db.session.commit()
if not (current_app.config.get('TESTING', False)
or current_app.config.get('FAKE_DOI', False)):
doi = None
for rec_pid in record['_pid']:
if rec_pid['type'] == 'DOI':
doi = rec_pid
doi_pid = PersistentIdentifier.get('doi', doi['value'])
if doi_pid:
from .serializers import datacite_v44
from .minters import make_record_url
try:
datacite_provider = DataCiteProvider(doi_pid)
doc = datacite_v44.serialize(doi_pid, record)
url = make_record_url(pid.pid_value)
datacite_provider.update(url, doc)
except:
current_app.logger.error(
"Error in DataCite metadata update", exc_info=True)
return self.make_response(pid,
record,
links_factory=self.links_factory)
