from django.db import models
from django.utils import timezone

# A quiz model
class Quiz(models.Model):
	title = models.CharField(max_length = 30)
	date_created = models.DateField()
	subject = models.CharField(max_length = 20)
	creator = models.ForeignKey(Teacher)

	def submit(self):
		self.submit_date = timezone.now()
		self.save()

class Questions(models.Model):
	# Each question is associated with a specific quiz
	quiz = models.ForeignKey(Quiz)
	questionText = models.TextField()

class Answer(models.Model):
	# Each answer is associated with a question
	possible_answer = models.ForeignKey(Questions)
	# Each question should also have an associated Boolean field
	correct_answer = models.BooleanField
	answerText = models.TextField()

class Results(models.Model):
	quiz = models.ForeignKey(Quiz)
	student = models.ForeignKey(Student)
	score = models.IntegerField()

# A student model
class Student(models.Model):
	first_name = models.CharField(max_length = 30)
	last_name = models.CharField(max_length = 30)
	grade = models.IntegerField()
	teacher = models.ForeignKey(Teacher)

# A teacher model
class Teacher(models.Model):
	first_name = models.CharField(max_length = 30)
	last_name = models.CharField(max_length = 30)
	# Each teacher is associated with a principal
	principal = models.ForeignKey(Principal)

# A staff model? including the principal
class Principal(models.Model):
	first_name = models.CharField(max_length = 30)
	last_name = models.CharField(max_length = 30)