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 from django.conf.urls import url, patterns
  11 from django.shortcuts import render
  12 from django.contrib.auth.models import User
  13 from django.http import HttpResponse
  14 from django.template.loader import render_to_string
  15 from .models import Submission, Assignment, Attachment, exercises
  16 from .middleware import get_current_request
  17
  18
  19 def get_user_exercises(user):
  20     try:
  21         assignment = Assignment.objects.get(user = user)
  22         return [e for e in exercises if e['id'] in assignment.exercises]
  23     except Assignment.DoesNotExist:
  24         return []
  25
  26
  27 readonly_fields = ('submitted_by', 'first_name', 'last_name', 'email', 'key', 'key_sent')
  28
  29 class AttachmentWidget(forms.Widget):
  30     def render(self, name, value, *args, **kwargs):
  31         if value:
  32             a_tag = '<a href="%s">%s</a>' % (value, value)
  33         else:
  34             a_tag = 'brak'
  35         return mark_safe(('<input type="hidden" name="%s" value="%s"/>' % (name, value)) + a_tag)
  36
  37 class TextareaWithLinks(forms.Textarea):
  38     def render(self, name, value, *args, **kwargs):
  39         t, links = value
  40         self.links = links
  41         output = super(TextareaWithLinks, self).render(name, t, *args, **kwargs)
  42         moreoutput = "<div style='margin-left: 106px'>"
  43         for k, n, v in links:
  44             moreoutput += u"<br>%s: %s" % (k, AttachmentWidget().render(n, v))
  45         output += mark_safe(moreoutput + "</div>")
  46         return output
  47
  48 class SubmissionFormBase(forms.ModelForm):
  49     class Meta:
  50         model = Submission
  51         exclude = ('answers', 'marks', 'contact', 'end_time') + readonly_fields
  52
  53
  54 def get_open_answer(answers, exercise):
  55     def get_option(options, id):
  56         for option in options:
  57             if str(option['id']) == id:
  58                 return option
  59
  60     exercise_id = str(exercise['id'])
  61     answer = answers[exercise_id]
  62     if exercise['type'] == 'open':
  63         if isinstance(answer, list):
  64             toret = ''
  65             for part in answer:
  66                 field = get_option(exercise['fields'], part['id'])
  67                 toret += '- %s:\n\n%s\n\n' % (field['caption'], part['text'])
  68         else:
  69             toret = answer
  70     if exercise['type'] == 'edumed_wybor':
  71         ok = set(map(str, exercise['answer'])) == set(map(str,answer['closed_part']))
  72         toret = u'Czesc testowa [%s]:\n' % ('poprawna' if ok else 'niepoprawna')
  73         if len(answer['closed_part']):
  74             for selected in answer['closed_part']:
  75                 option = get_option(exercise['options'], selected)
  76                 toret += '%s: %s\n' % (selected, option['text'])
  77         else:
  78             toret += u'<nie wybrano odpowiedzi>\n'
  79         toret += u'\nCzesc otwarta (%s):\n\n' % ' '.join(exercise['open_part'])
  80         toret += answer['open_part']
  81
  82     return toret
  83
  84
  85 def get_form(request, submission):
  86     fields = dict()
  87     if submission.answers:
  88         answers = simplejson.loads(submission.answers)
  89         user_exercises = get_user_exercises(request.user)
  90         for exercise in exercises:
  91             if exercise not in user_exercises:
  92                 continue
  93
  94             answer_field_name = 'exercise_%s' % exercise['id']
  95             mark_field_name = 'markof_%s_by_%s' % (exercise['id'], request.user.id)
  96             if exercise['type'] in ('open', 'file_upload') or exercise.get('open_part', None):
  97                 if exercise['type'] == 'file_upload':
  98                     try:
  99                         attachment = Attachment.objects.get(submission = submission, exercise_id = exercise['id'])
 100                     except Attachment.DoesNotExist:
 101                         attachment = None
 102                     widget = AttachmentWidget
 103                     initial = attachment.file.url if attachment else None
 104                 else:
 105                     #widget = forms.Textarea(attrs={'readonly':True})
 106                     widget = TextareaWithLinks(attrs={'readonly':True})
 107                     links = []
 108                     qfiles = []
 109                     for qfield in exercise.get('fields', []):
 110                         if qfield.get('type') == 'file':
 111                             qfiles.append((qfield['id'], qfield['caption']))
 112                     if qfiles:
 113                         eid = int(exercise['id'])
 114                         by_tag = {}
 115                         for att in Attachment.objects.filter(submission=submission, exercise_id=eid).order_by('tag'):
 116                             by_tag[att.tag] = att.file.url
 117                         for tag, caption in qfiles:
 118                             v = by_tag.get(tag)
 119                             if v:
 120                                 links.append((caption, "file_%s__%s" % (eid, tag), v))
 121                     initial = get_open_answer(answers, exercise), links
 122
 123                 fields[answer_field_name] = forms.CharField(
 124                         widget = widget,
 125                         initial = initial,
 126                         label = u'Rozwiązanie zadania %s' % exercise['id'],
 127                         required = False
 128                 )
 129
 130                 choices = [(None, '-')] # + [(i,i) for i in range(exercise['max_points']+1)],
 131                 i = 0
 132                 while i <= exercise['max_points']:
 133                     choices.append((i, i))
 134                     i += .5
 135                 fields[mark_field_name] = forms.ChoiceField(
 136                     choices = choices,
 137                     initial = submission.get_mark(user_id = request.user.id, exercise_id = exercise['id']),
 138                     label = u'Twoja ocena zadania %s' % exercise['id']
 139                 )
 140
 141     if not request.user.is_superuser:
 142         class Meta(SubmissionFormBase.Meta):
 143             pass
 144         Meta.exclude += ('examiners',)
 145         fields['Meta'] = Meta
 146
 147     return type('SubmissionForm', (SubmissionFormBase,), fields)
 148
 149
 150 class SubmissionAdmin(admin.ModelAdmin):
 151     list_display = ('__unicode__', 'todo', 'examiners_repr')
 152     readonly_fields = readonly_fields
 153
 154     def get_form(self, request, obj, **kwargs):
 155         return get_form(request, obj)
 156
 157     def submitted_by(self, instance):
 158         if instance.contact:
 159             return '<a href="%s">%s</a>' % (
 160                 reverse('admin:contact_contact_change', args = [instance.contact.id]),
 161                 instance.contact.contact
 162             )
 163         return '-'
 164     submitted_by.allow_tags = True
 165     submitted_by.short_description = "Zgłoszony/a przez"
 166
 167     def todo(self, submission):
 168         user = get_current_request().user
 169         user_exercises = get_user_exercises(user)
 170         user_marks = submission.marks.get(str(user.id), {})
 171         return ','.join([str(e['id']) for e in user_exercises if str(e['id']) not in user_marks.keys()])
 172     todo.short_description = 'Twoje nieocenione zadania'
 173
 174     def examiners_repr(self, submission):
 175         return ', '.join([u.username for u in submission.examiners.all()])
 176     examiners_repr.short_description = 'Przypisani do zgłoszenia'
 177
 178     def save_model(self, request, submission, form, change):
 179         for name, value in form.cleaned_data.items():
 180             if name.startswith('markof_'):
 181                 parts = name.split('_')
 182                 exercise_id = parts[1]
 183                 user_id = parts[3]
 184                 submission.set_mark(user_id = user_id, exercise_id = exercise_id, mark = value)
 185         submission.save()
 186
 187     def changelist_view(self, request, extra_context=None):
 188         context = dict(examiners = [])
 189         assignments = Assignment.objects.all()
 190         if not request.user.is_superuser:
 191             assignments = assignments.filter(user = request.user)
 192         for assignment in assignments:
 193             examiner = dict(name = assignment.user.username, todo = 0)
 194             for submission in Submission.objects.filter(examiners = assignment.user):
 195                 for exercise_id in assignment.exercises:
 196                     if submission.get_mark(user_id = assignment.user.id, exercise_id = exercise_id) is None:
 197                         examiner['todo'] += 1
 198             context['examiners'].append(examiner)
 199         return super(SubmissionAdmin, self).changelist_view(request, extra_context = context)
 200
 201     def queryset(self, request):
 202         qs = super(SubmissionAdmin, self).queryset(request)
 203         if not request.user.is_superuser:
 204             qs = qs.filter(examiners = request.user)
 205         return qs
 206
 207     def get_urls(self):
 208         urls = super(SubmissionAdmin, self).get_urls()
 209         return patterns('',
 210             url(r'^report/$', self.admin_site.admin_view(report_view), name='wtem_admin_report')
 211         ) + super(SubmissionAdmin, self).get_urls()
 212
 213
 214 class SubmissionsSet:
 215     def __init__(self, submissions):
 216         self.submissions = submissions
 217         self.examiners_by_exercise = dict()
 218         for submission in submissions:
 219             for user_id, marks in submission.marks.items():
 220                 user = User.objects.get(pk=user_id)
 221                 for exercise_id in marks.keys():
 222                     examiners = self.examiners_by_exercise.setdefault(exercise_id, [])
 223                     if not user in examiners:
 224                         examiners.append(user)
 225
 226 def report_view(request):
 227     submissions = sorted(Submission.objects.all(), key = lambda s: -s.final_result)
 228     toret = render_to_string('wtem/admin_report.csv', dict(
 229         submissionsSet = SubmissionsSet(submissions),
 230         #exercise_ids = map(str, range(1,len(exercises)+1))
 231         exercise_ids = [str(e['id']) for e in exercises]
 232     ))
 233     response = HttpResponse(toret, content_type = 'text/csv')
 234     response['Content-Disposition'] = 'attachment; filename="wyniki.csv"'
 235     return response
 236
 237 admin.site.register(Submission, SubmissionAdmin)
 238 admin.site.register(Assignment)