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)
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)
+
+ 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]
+ exercise = [e for e in exercises if str(e['id']) == str(exercise_id)][0]
+ 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 = 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:
+ 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 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)):
+ 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)
- name = models.CharField(max_length=100)
- file = models.FileField(upload_to = 'wtem/attachment')
\ No newline at end of file
+ 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))
+
+
+def exercise_checked_manually(exercise):
+ return (exercise['type'] in ('open', 'file_upload')) or 'open_part' in exercise
fnp / edumed.git / blobdiff