# Path: students/models.py
# class Class(models.Model):
#     CLASS_NUMBERS = (
#         (8, 8),
#         (9, 9),
#         (10, 10),
#         (11, 11),
#         (12, 12),
#     )
#     CLASS_NUMBER_VALIDATORS = [MinValueValidator(8), MaxValueValidator(12)]
# 
#     CLASS_LETTERS = (
#         ('A', 'A'),
#         ('B', 'B'),
#         ('V', 'V'),
#         ('G', 'G'),
#     )
# 
#     number = models.IntegerField(validators=CLASS_NUMBER_VALIDATORS, choices=CLASS_NUMBERS)
#     letter = models.CharField(max_length=1, choices=CLASS_LETTERS)
# 
#     def __str__(self):
#         return '{}{}'.format(self.number, self.letter)
# 
#     class Meta:
#         ordering = ['number', 'letter']
#         verbose_name_plural = 'classes'
# 
# class Subject(models.Model):
#     title = models.CharField(unique=True, max_length=50)
# 
#     def __str__(self):
#         return self.title
# 
#     class Meta:
#         ordering = ['title']
# 
# class Teacher(Account):
#     subject = models.ForeignKey(Subject, related_name='teachers', on_delete=models.CASCADE)
# 
#     def __str__(self):
#         return '{} ({})'.format(self.user.username, self.subject)
# 
# class Student(Account):
#     clazz = models.ForeignKey(Class, related_name='students', on_delete=models.CASCADE)
# 
#     def __str__(self):
#         return '{} ({})'.format(self.user.username, self.clazz)
# 
# Path: news/models.py
# class BaseAbstractPost(models.Model):
#     posted_on = models.DateTimeField(auto_now_add=True)
#     edited = models.BooleanField(default=False)
#     last_edited_on = models.DateTimeField(auto_now=True)
# 
#     class Meta:
#         abstract = True


from django.db import models
from students.models import Class, Subject, Teacher, Student
from news.models import BaseAbstractPost




class Homework(models.Model):
    topic = models.CharField(default='Homework', max_length=50)
    subject = models.ForeignKey(Subject, on_delete=models.CASCADE)
    clazz = models.ForeignKey(Class, on_delete=models.CASCADE)
    deadline = models.DateField(auto_now=False)
    details = models.TextField(max_length=256, blank=True)

# Path: students/models.py
# class Class(models.Model):
#     CLASS_NUMBERS = (
#         (8, 8),
#         (9, 9),
#         (10, 10),
#         (11, 11),
#         (12, 12),
#     )
#     CLASS_NUMBER_VALIDATORS = [MinValueValidator(8), MaxValueValidator(12)]
# 
#     CLASS_LETTERS = (
#         ('A', 'A'),
#         ('B', 'B'),
#         ('V', 'V'),
#         ('G', 'G'),
#     )
# 
#     number = models.IntegerField(validators=CLASS_NUMBER_VALIDATORS, choices=CLASS_NUMBERS)
#     letter = models.CharField(max_length=1, choices=CLASS_LETTERS)
# 
#     def __str__(self):
#         return '{}{}'.format(self.number, self.letter)
# 
#     class Meta:
#         ordering = ['number', 'letter']
#         verbose_name_plural = 'classes'
# 
# class Subject(models.Model):
#     title = models.CharField(unique=True, max_length=50)
# 
#     def __str__(self):
#         return self.title
# 
#     class Meta:
#         ordering = ['title']
# 
# class Teacher(Account):
#     subject = models.ForeignKey(Subject, related_name='teachers', on_delete=models.CASCADE)
# 
#     def __str__(self):
#         return '{} ({})'.format(self.user.username, self.subject)
# 
# class Student(Account):
#     clazz = models.ForeignKey(Class, related_name='students', on_delete=models.CASCADE)
# 
#     def __str__(self):
#         return '{} ({})'.format(self.user.username, self.clazz)
# 
# Path: news/models.py
# class BaseAbstractPost(models.Model):
#     posted_on = models.DateTimeField(auto_now_add=True)
#     edited = models.BooleanField(default=False)
#     last_edited_on = models.DateTimeField(auto_now=True)
# 
#     class Meta:
#         abstract = True


# Path: homeworks/models.py
from django.db import models
from students.models import Class, Subject, Teacher, Student
from news.models import BaseAbstractPost





class Homework(models.Model):
    topic = models.CharField(default='Homework', max_length=50)
    subject = models.ForeignKey(Subject, on_delete=models.CASCADE)
    clazz = models.ForeignKey(Class, on_delete=models.CASCADE)
    deadline = models.DateField(auto_now=False)
    details = models.TextField(max_length=256, blank=True)

    author = models.ForeignKey(Teacher, null=True, related_name='homeworks', on_delete=models.CASCADE)