Source code for quiz.models
from django.db import models
from django.contrib.auth.models import User
import datetime
from django.utils import timezone
[docs]class Permission(models.Model):
"""This class is used to create the userspermission table in database.Defines the permission of the user default permission is Student the admin can provide staff permission"""
userId=models.ForeignKey(to=User, on_delete=models.CASCADE)
"""This is the foreign key pointing to Users table"""
role=models.CharField(max_length=1,default="S")
"""The roles are Student(S) and Professor(P) default is student and admin allocates Professor role based on requests"""
[docs]class quiz(models.Model):
"""This class is used to create the quiz table in database.Contains information about the quiz time,length,code and instructor who has created it"""
quizId=models.AutoField(primary_key=True)
"""The quizid to uniquely identiy the quiz (Primary key)"""
startTime=models.TimeField()
"""Start Time of the quiz """
date=models.DateField(default=datetime.date.today)
"""The Start date of quiz"""
length=models.FloatField(max_length=10)
"""The duration of the quiz in minutes"""
quizCode=models.CharField(max_length=100,default='Code')
"""Random 6 Alhpa numeric characters assigned to each quiz"""
quizDone=models.BooleanField(default=False)
quizInfo=models.CharField(max_length=100,default="No Info Available")
quizInstructor=models.ForeignKey(to=User, on_delete=models.CASCADE)
"""The instructor who created the quiz"""
@property
def end_datetime( self ):
starttime = datetime.datetime.combine( self.date, self.startTime if self.startTime is not None else datetime.time.min )
endtime = starttime + datetime.timedelta(minutes=self.length)
return endtime
def __str__(self):
return str(self.quizId)
[docs]class Questions(models.Model):
""" This class is used to create the Questions table in database.Contains info about the questions within a particular quiz and its attributes like socre and negative marks and correct answer"""
question = models.TextField()
"""Question descirption"""
option1 = models.CharField(max_length=100)
"""option 1 for question"""
option2 = models.CharField(max_length=100)
"""option 2 for question"""
option3 = models.CharField(max_length=100)
"""option 3 for question"""
option4 = models.CharField(max_length=100)
"""option 4 for question"""
answer = models.CharField(max_length=100)
type=models.CharField(max_length=10,default=1)
marks =models.IntegerField(default=1)
negative = models.FloatField(max_length=10,default=0)
explainations=models.TextField(max_length=1000,default='No Explaination Given')
questionId=models.AutoField(primary_key=True,)
"""Unqiue question identifier Primary key"""
quizCode =models.CharField(max_length=100,default='Code')
"""6 random alpha numeric characters for each quiz"""
quizId=models.ForeignKey(quiz,to_field='quizId',on_delete=models.CASCADE)
"""Foreign key of quiz model"""
def __str__(self):
return str(self.questionId)
class Meta:
db_table="Questions"
[docs]class submission(models.Model):
""" This class is used to create the Submission table in database.Contains info about each questions answer submitted by each student"""
questionId=models.ForeignKey(Questions,to_field='questionId',on_delete=models.CASCADE)
"""Foreign key of question model"""
option=models.CharField(max_length=100)
"""The option selected by the student"""
studentId=models.ForeignKey(to=User, on_delete=models.CASCADE)
"""Foreign key of user model"""
quizId=models.ForeignKey(quiz,to_field='quizId',on_delete=models.CASCADE)
"""Foreign key of quiz model"""
[docs]class cribs(models.Model):
""" This class is used to create the cribs table in database.Contains cribs raised by students"""
studentId=models.ForeignKey(to=User, on_delete=models.CASCADE)
cribs=models.CharField(max_length=1000)
"""The cribs registered by the student for the given question"""
quizId=models.ForeignKey(quiz,to_field='quizId',on_delete=models.CASCADE)
"""Foreign key of quiz model"""
questionId=models.ForeignKey(Questions,to_field='questionId',on_delete=models.CASCADE)
class Meta:
db_table="cribs"
[docs]class result(models.Model):
"""This class is used to create the result table in database.Stores cumulative score by each student in each quiz"""
studentId = models.ForeignKey(to=User, on_delete=models.CASCADE)
quizId = models.ForeignKey(quiz, to_field='quizId', on_delete=models.CASCADE)
"""Foreign key of quiz model"""
marks=models.IntegerField(default=0)
"""cumulative marks for each student"""
[docs]class log(models.Model):
"""This class is used to create the log table in database.stores the student activity information for monitoring the students"""
quizId=models.ForeignKey(quiz,to_field='quizId',on_delete=models.CASCADE, default="")
"""Foreign key of quiz model"""
studentId = models.ForeignKey(to=User, on_delete=models.CASCADE, default="")
"""Foreign key of user model"""
logtime = models.DateTimeField(default=timezone.now)
"""The time student last logged in"""
fullscreen=models.CharField(max_length=20, default="")
"""Contains value to check whether the student has left fullscreen"""
questions=models.CharField(max_length=20, default="")
"""Foreign key for questions model"""