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various fixes and updates
[edumed.git] / wtem / models.py
diff --git a/wtem/models.py b/wtem/models.py
index 90492bf..fbf0928 100644 (file)
--- a/wtem/models.py
+++ b/wtem/models.py
@@ -1,60 +1,282 @@
+# -*- coding: utf-8 -*-
 import random
 import string
 import random
 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.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
 
 from contact.models import Contact
 
 from django.utils.translation import ugettext as _
 from jsonfield import JSONField
 
 from contact.models import Contact
 
+f = file(os.path.dirname(__file__) + '/fixtures/exercises.json')
+exercises = json.loads(f.read())
+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
 
 
-DEBUG_KEY = '12345'
 
 class Submission(models.Model):
 
 class Submission(models.Model):
-    contact = models.ForeignKey(Contact, null = True)
-    key = models.CharField(max_length = 30, unique = True)
-    first_name = models.CharField(max_length = 100)
-    last_name = models.CharField(max_length = 100)
-    email = models.EmailField(max_length = 100, unique = True)
-    answers = models.CharField(max_length = 65536, null = True, blank = True)
-    key_sent = models.BooleanField(default = False)
+    contact = models.ForeignKey(Contact, null=True)
+    key = models.CharField(max_length=30, unique=True)
+    first_name = models.CharField(max_length=100)
+    last_name = models.CharField(max_length=100)
+    email = models.EmailField(max_length=100, unique=True)
+    answers = models.CharField(max_length=65536, null=True, blank=True)
+    key_sent = models.BooleanField(default=False)
+    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))
 
     @classmethod
     def generate_key(cls):
         key = ''
         while not key or key in [record['key'] for record in cls.objects.values('key')]:
 
     @classmethod
     def generate_key(cls):
         key = ''
         while not key or key in [record['key'] for record in cls.objects.values('key')]:
-            key = ''.join(random.choice(string.ascii_uppercase + string.ascii_lowercase + string.digits) for i in range(30))
+            key = make_key(30)
         return key
 
     @classmethod
         return key
 
     @classmethod
-    def create(cls, first_name, last_name, email, key = None, contact = None):
+    def create(cls, first_name, last_name, email, key=None, contact=None):
         submission = cls(
         submission = cls(
-            contact = contact,
-            key = key if key else Submission.generate_key(),
-            first_name = first_name,
-            last_name = last_name,
-            email = email
+            contact=contact,
+            key=key if key else Submission.generate_key(),
+            first_name=first_name,
+            last_name=last_name,
+            email=email,
+            random_seed=random.randint(-2147483648, 2147483647)
         )
 
         submission.save()
         return submission
 
         )
 
         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)
+        exercise_id = str(exercise_id)
+        if self.marks and user_id in self.marks:
+            mark = self.marks[user_id].get(exercise_id, None)
+        return mark
+
+    def set_mark(self, user_id, exercise_id, mark):
+        user_id = str(user_id)
+        exercise_id = str(exercise_id)
+        if not self.marks:
+            self.marks = dict()
+        
+        self.marks.setdefault(user_id, {})[exercise_id] = mark
+        if mark == 'None':
+            del self.marks[user_id][exercise_id]
+
+    def get_exercise_marks_by_examiner(self, exercise_id):
+        marks = dict()
+        for examiner_id, examiner_marks in self.marks.items():
+            mark = examiner_marks.get(exercise_id, None)
+            if mark is not None:
+                marks[examiner_id] = mark
+        return marks
+
+    def get_final_exercise_mark(self, exercise_id):
+        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):
+                return sum(map(float, marks_by_examiner.values())) / float(len(marks_by_examiner))
+            else:
+                return None
+        else:
+            if not self.answers:
+                return None
+            answer = json.loads(self.answers)[exercise_id]['closed_part']
+            t = exercise['type']
+            if t == 'edumed_uporzadkuj':
+                return exercise['points'] if map(int, answer) == exercise['answer'] else 0
+            if t == 'edumed_przyporzadkuj':
+                toret = 0
+                for bucket_id, items in answer.items():
+                    for item_id in items:
+                        is_corect = False
+                        if exercise.get('answer_mode', None) == 'possible_buckets_for_item':
+                            is_correct = int(bucket_id) in exercise['answer'].get(item_id)
+                        else:
+                            is_correct = int(item_id) in exercise['answer'].get(bucket_id, [])
+                        if is_correct:
+                            toret += exercise['points_per_hit']
+                return toret
+            if t == 'edumed_wybor':
+                if len(exercise['answer']) == 1:
+                    if len(answer) and int(answer[0]) == exercise['answer'][0]:
+                        return exercise['points']
+                    else:
+                        return 0
+                else:
+                    toret = 0
+                    if exercise.get('answer_mode', None) == 'all_or_nothing':
+                        toret = exercise['points'] if map(int, answer) == exercise['answer'] else 0
+                    else:
+                        for answer_id in map(int, answer):
+                            if answer_id in exercise['answer']:
+                                toret += exercise['points_per_hit']
+                    return toret
+            if t == 'edumed_prawdafalsz':
+                toret = 0
+                for idx, statement in enumerate(exercise['statements']):
+                    if statement[1] == 'ignore':
+                        continue
+                    if answer[idx] == 'true':
+                        given = True
+                    elif answer[idx] == 'false':
+                        given = False
+                    else:
+                        given = None
+                    if given == statement[1]:
+                        toret += exercise['points_per_hit']
+                return toret
+            raise NotImplementedError
+
+    @property
+    def final_result(self):
+        final = 0
+        # for exercise_id in map(str,range(1, len(exercises) + 1)):
+        for exercise_id in [str(x['id']) for x in exercises]:
+            mark = self.get_final_exercise_mark(exercise_id)
+            if mark is not None:
+                final += mark
+        return final
+
+    @property
+    def final_result_as_string(self):
+        return ('%.2f' % self.final_result).rstrip('0').rstrip('.')
+
 
 class Attachment(models.Model):
     submission = models.ForeignKey(Submission)
 
 class Attachment(models.Model):
     submission = models.ForeignKey(Submission)
-    name = models.CharField(max_length=100)
-    file = models.FileField(upload_to = 'wtem/attachment')
+    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):
 
 
 class Assignment(models.Model):
-    user = models.ForeignKey(User)
+    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'))
     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))
+        # 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 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