wtem/admin.py

   1 # -*- coding: utf-8 -*-
   2
   3 import os
   4
   5 from django.contrib import admin
   6 from django import forms
   7 from django.utils import simplejson
   8 from django.utils.safestring import mark_safe
   9 from django.core.urlresolvers import reverse
  10
  11 from .models import Submission, Assignment, Attachment, exercises
  12 from .middleware import get_current_request
  13
  14
  15 def get_user_exercises(user):
  16     try:
  17         assignment = Assignment.objects.get(user = user)
  18         return [e for e in exercises if e['id'] in assignment.exercises]
  19     except Assignment.DoesNotExist:
  20         return []
  21
  22
  23 readonly_fields = ('submitted_by', 'first_name', 'last_name', 'email', 'key', 'key_sent')
  24
  25 class AttachmentWidget(forms.Widget):
  26     def render(self, name, value, *args, **kwargs):
  27         return mark_safe('<input type="hidden" name="%s" value="%s"/><a href="%s">%s</a>' % (name, value, value, value))
  28
  29 class SubmissionFormBase(forms.ModelForm):
  30     class Meta:
  31         model = Submission
  32         exclude = ('answers', 'marks', 'contact') + readonly_fields
  33
  34
  35 def get_open_answer(answers, exercise):
  36     def get_option(options, id):
  37         for option in options:
  38             if option['id'] == int(id):
  39                 return option
  40
  41     exercise_id = str(exercise['id'])
  42     answer = answers[exercise_id]
  43     if exercise['type'] == 'open':
  44         if isinstance(answer, list):
  45             toret = ''
  46             for part in answer:
  47                 field = get_option(exercise['fields'], part['id'])
  48                 toret += '- %s:\n\n%s\n\n' % (field['caption'], part['text'])
  49         else:
  50             toret = answer
  51     if exercise['type'] == 'edumed_wybor':
  52         ok = set(map(str, exercise['answer'])) == set(map(str,answer['closed_part']))
  53         toret = u'Czesc testowa [%s]:\n' % ('poprawna' if ok else 'niepoprawna')
  54         for selected in answer['closed_part']:
  55             option = get_option(exercise['options'], selected)
  56             toret += '%s: %s\n' % (selected, option['text'])
  57         else:
  58             toret += u'<nie wybrano odpowiedzi>\n'
  59         toret += u'\nCzesc otwarta (%s):\n\n' % ' '.join(exercise['open_part'])
  60         toret += answer['open_part']
  61
  62     return toret
  63
  64
  65 def get_form(request, submission):
  66     fields = dict()
  67     if submission.answers:
  68         answers = simplejson.loads(submission.answers)
  69         user_exercises = get_user_exercises(request.user)
  70         for exercise in exercises:
  71             if exercise not in user_exercises:
  72                 continue
  73
  74             answer_field_name = 'exercise_%s' % exercise['id']
  75             mark_field_name = 'markof_%s_by_%s' % (exercise['id'], request.user.id)
  76             if exercise['type'] in ('open', 'file_upload') or exercise.get('open_part', None):
  77                 if exercise['type'] == 'file_upload':
  78                     try:
  79                         attachment = Attachment.objects.get(submission = submission, exercise_id = exercise['id'])
  80                     except Attachment.DoesNotExist:
  81                         attachment = None
  82                     widget = AttachmentWidget
  83                     initial = attachment.file.url if attachment else None
  84                 else:
  85                     widget = forms.Textarea(attrs={'readonly':True})
  86                     initial = get_open_answer(answers, exercise)
  87
  88                 fields[answer_field_name] = forms.CharField(
  89                         widget = widget,
  90                         initial = initial,
  91                         label = 'Rozwiązanie zadania %s' % exercise['id']
  92                 )
  93
  94                 fields[mark_field_name] = forms.ChoiceField(
  95                     choices = [(None, '-')] + [(i,i) for i in range(exercise['max_points']+1)],
  96                     initial = submission.get_mark(user_id = request.user.id, exercise_id = exercise['id']),
  97                     label = u'Twoja ocena zadania %s' % exercise['id']
  98                 )
  99     return type('SubmissionForm', (SubmissionFormBase,), fields)
 100
 101
 102 class SubmissionAdmin(admin.ModelAdmin):
 103     list_display = ('__unicode__', 'todo',)
 104     readonly_fields = readonly_fields
 105
 106     def get_form(self, request, obj, **kwargs):
 107         return get_form(request, obj)
 108
 109     def submitted_by(self, instance):
 110         if instance.contact:
 111             return '<a href="%s">%s</a>' % (
 112                 reverse('admin:contact_contact_change', args = [instance.contact.id]),
 113                 instance.contact.contact
 114             )
 115         return '-'
 116     submitted_by.allow_tags = True
 117     submitted_by.short_description = "Zgłoszony/a przez"
 118
 119     def todo(self, submission):
 120         user = get_current_request().user
 121         user_exercises = get_user_exercises(user)
 122         user_marks = submission.marks.get(str(user.id), {})
 123         return ','.join([str(e['id']) for e in user_exercises if str(e['id']) not in user_marks.keys()])
 124
 125     def save_model(self, request, submission, form, change):
 126         for name, value in form.cleaned_data.items():
 127             if name.startswith('markof_'):
 128                 parts = name.split('_')
 129                 exercise_id = parts[1]
 130                 user_id = parts[3]
 131                 submission.set_mark(user_id = user_id, exercise_id = exercise_id, mark = value)
 132         submission.save()
 133
 134     def changelist_view(self, request, extra_context=None):
 135         context = dict(examiners = [])
 136         if request.user.is_superuser:
 137             submissions = Submission.objects.all()
 138             for assignment in Assignment.objects.all():
 139                 examiner = dict(name = assignment.user.username, todo = 0)
 140                 for submission in submissions:
 141                     for exercise_id in assignment.exercises:
 142                         if submission.get_mark(user_id = assignment.user.id, exercise_id = exercise_id) is None:
 143                             examiner['todo'] += 1
 144                 context['examiners'].append(examiner)
 145         return super(SubmissionAdmin, self).changelist_view(request, extra_context = context)
 146
 147 admin.site.register(Submission, SubmissionAdmin)
 148 admin.site.register(Assignment)