from django.db import models


class ExamTemplate(models.Model):
    id = models.AutoField(primary_key=True)
    title = models.CharField(max_length=100)
    subject = models.CharField(max_length=100)

    def __str__(self):
        return self.title


class Exam(models.Model):
    id = models.AutoField(primary_key=True)
    date_and_time = models.DateTimeField(blank=False)
    location = models.CharField(max_length=100)
    is_results = models.BooleanField(default=False)
    exam_template = models.ManyToManyField(ExamTemplate)

    def __str__(self):
        return f'{self.date_and_time} {self.location}'


class Exercise(models.Model):
    id = models.AutoField(primary_key=True)
    question = models.CharField(max_length=500)
    max_points = models.IntegerField(default=3)
    exam = models.ManyToManyField(Exam)

    def __str__(self):
        return self.question