How to define rating sheet model for an interview? - django

Question

Pardon the bad drawing.
Notations:
I - Interview
R1,R2,R3,R4 - Rounds
RT - Rating Sheet
A0, A1, A2, A4 - Aspect(Text Fields) under Rating sheet.
Models:
class Interview(models.Model):
date = ............
class Round(models.Model):
interview = models.ForeignKey(Interview)
class RatingSheet(models.Model):
name = ............
class Aspects(models.Model):
sheet= models.ForeignKey(RatingSheet)
I need a rating sheet to be filled for each interview. That sheet will hold ratings (1-10) for each aspect for each Round.
What have I tried:
I have thought of creating a form dynamically for an Interview with N rounds and accept ratings as drop down .
And I collect all via request.POST. And create a dictionary like:
rating_interview_1 = {'interview_pk':
{
'Round1': {'ASP1': 5, 'ASP2':10},
'Round2': {'ASP1': 5, 'ASP2':10},
'Round3': {'ASP1': 5, 'ASP2':9},
}
}
And then save it to database somehow. I think this can be difficult to edit or maintain. Can I get some suggestions on the correct way to design this ?

Answer 1

I solved it myself. Took 2 weeks of thinking. This is too complex to answer.
But one thing I learned is...there is always a way to organise you models to store data . Other wise retrieval of the same will be a real pain in the future.
Solution:
We need more models .
class InterviewRatingSheet(models.Model):
name = models.CharField(max_length=200, default='MySheet')
interview = models.ForeignKey(Interview, null=True)
round_name = models.OneToOneField(Round, null=True)
def __str__(self): # __unicode__ on Python 2
return self.name
class RatingAspect(models.Model):
name = models.CharField(max_length=100)
description = models.TextField(null=True, default='', blank=True)
interview_rating_sheet = models.ForeignKey(InterviewRatingSheet)
points = models.PositiveIntegerField(default=0)
def __str__(self): # __unicode__ on Python 2
return self.name
So for a "Round", there will be only one "InterviewRatingSheet" and each sheet will have "RatingAspect"s same as "Aspects".
You can see the whole code in this link:
https://github.com/arindam31/django-interview-manager