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