X-Git-Url: https://git.mdrn.pl/edumed.git/blobdiff_plain/e0ca24b203011b28d4fe07fb3c1c76f00fdea959..e8035f42434faf0ffcb1897f6783c64d5751ae20:/wtem/models.py diff --git a/wtem/models.py b/wtem/models.py index b6858cc..69affe4 100644 --- a/wtem/models.py +++ b/wtem/models.py @@ -1,10 +1,21 @@ import random import string +import os from django.db import models +from django.contrib.auth.models import User +from django.core.exceptions import ValidationError +from django.utils import simplejson +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 = simplejson.loads(f.read()) +f.close() + +DEBUG_KEY = '12345' class Submission(models.Model): contact = models.ForeignKey(Contact, null = True) @@ -13,40 +24,141 @@ class Submission(models.Model): 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() + examiners = models.ManyToManyField(User, null = True, blank = True) + + def __unicode__(self): + return ', '.join((self.last_name, self.first_name, self.email)) @classmethod def generate_key(cls): key = '' - while not key and key in [record['key'] for record in cls.objects.values('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)) return key @classmethod - def create(cls, first_name, last_name, email, contact = None, key = None): - submissions = [] + def create(cls, first_name, last_name, email, key = None, contact = None): + submission = cls( + contact = contact, + key = key if key else Submission.generate_key(), + first_name = first_name, + last_name = last_name, + email = email + ) - if contact: - students = contact['students'] - else: - students = [dict(first_name = first_name, last_name = last_name, email = email)] + submission.save() + return submission + + 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() - if key is None: - key = Submission.generate_key() - - for student in students: - submission = cls( - contact = contact, - key = key, - first_name = student['first_name'], - last_name = student['last_name'], - email = student['email'] - ) - submission.save() - submissions.append(submission) - return submissions + 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 = exercises[int(exercise_id)-1] + if exercise_checked_manually(exercise): + marks_by_examiner = self.get_exercise_marks_by_examiner(exercise_id) + if len(marks_by_examiner): + return max(map(int, marks_by_examiner.values())) + else: + return None + else: + if not self.answers: + return None + answer = simplejson.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: + if int(item_id) == exercise['answer'].get(bucket_id, None): # @@ We assume only one item per bucker for now... + 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 + for id in map(int, answer): + if 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 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)): + 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) - name = models.CharField(max_length=100) - file = models.FileField(upload_to = 'wtem/attachment') \ No newline at end of file + exercise_id = models.IntegerField() + 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)) + + +def exercise_checked_manually(exercise): + return (exercise['type'] in ('open', 'file_upload')) or 'open_part' in exercise \ No newline at end of file