+
+class WTEMSingleForm(forms.ModelForm):
+ answers = forms.CharField()
+
+ class Meta:
+ model = Submission
+ fields = []
+
+ def __init__(self, *args, **kwargs):
+ super(WTEMSingleForm, self).__init__(*args, **kwargs)
+ i, exercise = self.instance.current_exercise()
+ if exercise and exercise['type'] == 'file_upload':
+ self.fields['attachment'] = forms.FileField(required=False)
+
+ def save(self, commit=True):
+ submission = self.instance
+ answers = submission.get_answers()
+ posted_answers = json.loads(self.cleaned_data['answers'])
+ assert type(posted_answers) == dict, 'answers not dict'
+ assert len(posted_answers) == 1, 'answers not single'
+ exercise_id = posted_answers.keys()[0]
+ i, exercise = submission.current_exercise()
+ assert exercise_id == str(exercise['id']), 'wrong exercise id'
+ for answer in posted_answers.values():
+ answers[exercise_id] = answer
+ submission.answers = json.dumps(answers)
+ submission.save()
+ for name, attachment_file in self.files.items():
+ m = re.match(r'attachment(?:__(.*))?', name)
+ tag = m.group(1) or None
+ attachment, created = Attachment.objects.get_or_create(
+ submission=submission, exercise_id=exercise_id, tag=tag)
+ attachment.file = attachment_file
+ attachment.save()