+ exercise_id = models.IntegerField()
+ tag = models.CharField(max_length=128, null=True, blank=True)
+ file = models.FileField(upload_to='wtem/attachment')
+
+
+class Assignment(models.Model):
+ user = models.ForeignKey(User, unique=True)
+ exercises = JSONField()
+
+ def clean(self):
+ if not isinstance(self.exercises, list):
+ raise ValidationError(_('Assigned exercises must be declared in a list format'))
+ # for exercise in self.exercises:
+ # if not isinstance(exercise, int) or exercise < 1:
+ # raise ValidationError(_('Invalid exercise id: %s' % exercise))
+
+ def __unicode__(self):
+ return self.user.username + ': ' + ','.join(map(str, self.exercises))
+
+
+class Confirmation(models.Model):
+ first_name = models.CharField(max_length=100)
+ last_name = models.CharField(max_length=100)
+ email = models.EmailField(max_length=100, unique=True)
+ contact = models.ForeignKey(Contact, null=True)
+ key = models.CharField(max_length=30)
+ confirmed = models.BooleanField(default=False)
+
+ class Meta:
+ ordering = ['contact__contact']
+
+ @classmethod
+ def create(cls, first_name, last_name, email, contact=None, key=None):
+ confirmation = cls(
+ contact=contact,
+ key=key if key else make_key(30),
+ first_name=first_name,
+ last_name=last_name,
+ email=email
+ )
+
+ confirmation.save()
+ return confirmation
+
+ def absolute_url(self):
+ return reverse('student_confirmation', args=(self.id, self.key))
+
+ def readable_contact(self):
+ return '%s <%s>' % (self.contact.body.get('przewodniczacy'), self.contact.contact)
+
+ def school_phone(self):
+ return '%s, tel. %s' % (self.contact.body.get('school'), self.contact.body.get('school_phone'))
+
+ def age(self):
+ return timezone.now() - self.contact.created_at
+
+ def readable_age(self):
+ td = self.age()
+ return '%s dni, %s godzin' % (td.days, td.seconds/3600)
+
+ def send_mail(self):
+ mail_subject = render_to_string('contact/olimpiada/student_mail_subject.html').strip()
+ mail_body = render_to_string(
+ 'contact/olimpiada/student_mail_body.html', {'confirmation': self})
+ try:
+ validate_email(self.email)
+ except ValidationError:
+ pass
+ else:
+ send_mail(mail_subject, mail_body, 'olimpiada@nowoczesnapolska.org.pl', [self.email],
+ fail_silently=True)
+
+
+def exercise_checked_manually(exercise):
+ return (exercise['type'] in ('open', 'file_upload')) or 'open_part' in exercise