various fixes and updates

[edumed.git] / wtem / models.py

diff --git a/wtem/models.py b/wtem/models.py
index 69337a0..fbf0928 100644 (file)
--- a/wtem/models.py
+++ b/wtem/models.py
@@ -4,10 +4,14 @@ import string
 import os
 import json
 
+from django.core.validators import validate_email
 from django.db import models
 from django.contrib.auth.models import User
 from django.core.exceptions import ValidationError
+from django.core.mail import send_mail
 from django.core.urlresolvers import reverse
+from django.template.loader import render_to_string
+from django.utils import timezone
 from django.utils.translation import ugettext as _
 from jsonfield import JSONField
 
@@ -20,12 +24,33 @@ f.close()
 DEBUG_KEY = 'smerfetka159'
 
 
+def get_exercise_by_id(exercise_id):
+    return [e for e in exercises if str(e['id']) == str(exercise_id)][0]
+
+
 def make_key(length):
     return ''.join(
         random.choice(string.ascii_uppercase + string.ascii_lowercase + string.digits)
         for i in range(length))
 
 
+class CompetitionState(models.Model):
+    """singleton"""
+    BEFORE = 'before'
+    DURING = 'during'
+    AFTER = 'after'
+    STATE_CHOICES = (
+        (BEFORE, u'przed rozpoczęciem'),
+        (DURING, u'w trakcie'),
+        (AFTER, u'po zakończeniu'),
+    )
+    state = models.CharField(choices=STATE_CHOICES, max_length=16)
+
+    @classmethod
+    def get_state(cls):
+        return cls.objects.get().state
+
+
 class Submission(models.Model):
     contact = models.ForeignKey(Contact, null=True)
     key = models.CharField(max_length=30, unique=True)
@@ -37,6 +62,7 @@ class Submission(models.Model):
     marks = JSONField(default={})
     examiners = models.ManyToManyField(User, null=True, blank=True)
     end_time = models.CharField(max_length=5, null=True, blank=True)
+    random_seed = models.IntegerField()
 
     def __unicode__(self):
         return ', '.join((self.last_name, self.first_name, self.email))
@@ -55,12 +81,32 @@ class Submission(models.Model):
             key=key if key else Submission.generate_key(),
             first_name=first_name,
             last_name=last_name,
-            email=email
+            email=email,
+            random_seed=random.randint(-2147483648, 2147483647)
         )
 
         submission.save()
         return submission
 
+    def competition_link(self):
+        return reverse('form_single', kwargs={'submission_id': self.id, 'key': self.key})
+
+    def get_answers(self):
+        return json.loads(self.answers) if self.answers else {}
+
+    def shuffled_exercise_ids(self):
+        exercise_ids = [e['id'] for e in exercises]
+        seeded_random = random.Random(self.random_seed)
+        seeded_random.shuffle(exercise_ids)
+        return exercise_ids
+
+    def current_exercise(self):
+        answers = self.get_answers()
+        for i, id in enumerate(self.shuffled_exercise_ids(), 1):
+            if str(id) not in answers:
+                return i, get_exercise_by_id(id)
+        return None, None
+
     def get_mark(self, user_id, exercise_id):
         mark = None
         user_id = str(user_id)
@@ -88,8 +134,7 @@ class Submission(models.Model):
         return marks
 
     def get_final_exercise_mark(self, exercise_id):
-        # exercise = exercises[int(exercise_id)-1]
-        exercise = [e for e in exercises if str(e['id']) == str(exercise_id)][0]
+        exercise = get_exercise_by_id(exercise_id)
         if exercise_checked_manually(exercise):
             marks_by_examiner = self.get_exercise_marks_by_examiner(exercise_id)
             if len(marks_by_examiner):
@@ -191,6 +236,9 @@ class Confirmation(models.Model):
     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(
@@ -207,6 +255,28 @@ class Confirmation(models.Model):
     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 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