-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)
- 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()
- 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 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, 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
- )
-
- 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()
-
- 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(marks_by_examiner.values())
- else:
- return None
- else:
- return 1 # TODO: actually calculate the result
-
- @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 += int(mark)
- return final
-
-
-class Attachment(models.Model):
- submission = models.ForeignKey(Submission)
- 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
fnp / edumed.git / blobdiff