from django.db import models


class Quiz(models.Model):

    lesson = models.OneToOneField('university.Lesson', on_delete=models.CASCADE)
    chapter = models.ForeignKey('university.Chapter', on_delete=models.DO_NOTHING)
    course = models.ForeignKey('university.Course', on_delete=models.DO_NOTHING)
    questions = models.ManyToManyField('university.Question')

    class Meta:
        db_table = 'quiz'