def create(self, request, *args, **kwargs):
"""
Overrides the ``create`` method of ``mixins.CreateModelMixin`` in order
to add the new job to the Redis queue.
Side effects
Via ``queue_eregs_job`` and ``PipelineJobSerializer.save``, alters
the redis queue and the DB.
:arg HttpRequest request: the incoming request.
:rtype: Response
:returns: JSON or HTML of the information about the job (status 201),
or about why the job couldn't be added (status 400).
"""
serialized = self.get_serializer(data=request.data)
serialized.is_valid(raise_exception=True)
eregs_args = self.build_eregs_args(serialized.validated_data)
job = queue_eregs_job(eregs_args, timeout=60 * 30, result_ttl=-1)
# Paranoia--validate the values we provide:
job_id = job.id
for validator in serialized.get_fields()["job_id"].validators:
validator(job_id)
statusurl = status_url(job_id, sub_path=self.sub_path)
for validator in serialized.get_fields()["url"].validators:
validator(statusurl)
if serialized.validated_data.get("notification_email"):
queue_notification_email(
job, statusurl,
serialized.validated_data["notification_email"])
serialized.save(job_id=job_id, url=statusurl,
destination=eregs_site_api_url)
headers = self.get_success_headers(serialized.data)
"""
Adding the Refresh header here so that the browser does the
user-friendly thing of redirecting the user to the page for the
newly-created object, even though use of the Refresh header is
frowned upon in some circles.
Not using redirect via 302 or 303 so that non-browser users get the
201 status code they expect upon a successful POST.
I'm open to debate on this decision.
"""
headers["Refresh"] = "0;url=%s" % statusurl
return Response(serialized.data, status=status.HTTP_201_CREATED,
headers=headers)
