Added skeleton models for GradingSurveyGroup and Records.
SurveyRecordGroup has been renamed to GradingRecord.
GradingSurveyGroup will hold which Surveys should be linked. While the acompanying GradingRecords (with their reference to a GradingSurveyGroup) will hold the Records for each StudentProject that can take these Surveys.
"""
39. Empty model tests
These test that things behave sensibly for the rare corner-case of a model with
no fields.
"""
from django.db import models
class Empty(models.Model):
pass
__test__ = {'API_TESTS':"""
>>> m = Empty()
>>> m.id
>>> m.save()
>>> m2 = Empty()
>>> m2.save()
>>> len(Empty.objects.all())
2
>>> m.id is not None
True
>>> existing = Empty(m.id)
>>> existing.save()
"""}