def createDummySensor(self):
'''
Helper to create a new dummy sensor
'''
ns = Sensor(uuid="foo")
ns.save()
return ns
def claimSensor(data, owner):
try:
try:
uuid = data['uuid']
sensor = Sensor.objects.get(uuid=uuid)
except KeyError:
transaction.rollback()
return "A sensor uuid is required"
except Sensor.DoesNotExist:
sensor = None
#Cases for if a user has no authority to create/claim sensors
if (sensor is None and owner is None) or \
(sensor is not None and not sensor.isClaimed() and owner is None):
transaction.rollback()
return "Invalid Credentials"
sensor = Sensor() if sensor is None else sensor
#If sensor isnt claimed and we have credentials
if not sensor.isClaimed() and owner is not None:
sensor = updateObject(sensor, data)
if not isinstance(sensor, Sensor):
transaction.rollback()
return sensor
streamData = data.get('stream_data', {})
ds = createDs(sensor, owner, streamData)
if not isinstance(ds, DataStream):
transaction.rollback()
return ds
#We've successfully set up everything for the sensor so return it
transaction.commit()
return sensor
except Exception as e:
transaction.rollback()
return str(e)