Added methods to GradingRecord Logic to facilitate creating/updating them. UpdateOrCreateRecordsFor will batch put GradingRecords for a given SurveyGroup and StudentProject. getFieldsForGradingRecord will return the fields that need to be set for a single GradingRecord entity given a StudentProject, GradingSurveyGroup and if it is an update a GradingRecord entity.

from django.dispatch import Signal

request_started = Signal()
request_finished = Signal()
got_request_exception = Signal(providing_args=["request"])