wtem/admin.py

   1 # -*- coding: utf-8 -*-
   2 import json
   3
   4 from django import forms
   5 from django.conf.urls import url, patterns
   6 from django.contrib import admin
   7 from django.contrib.auth.models import User
   8 from django.core.urlresolvers import reverse
   9 from django.http import HttpResponse
  10 from django.template.loader import render_to_string
  11 from django.utils.safestring import mark_safe
  12
  13 from wtem.models import Confirmation
  14 from .middleware import get_current_request
  15 from .models import Submission, Assignment, Attachment, exercises
  16
  17
  18 def get_user_exercises(user):
  19     try:
  20         assignment = Assignment.objects.get(user=user)
  21         return [e for e in exercises if e['id'] in assignment.exercises]
  22     except Assignment.DoesNotExist:
  23         return []
  24
  25
  26 readonly_fields = ('submitted_by', 'first_name', 'last_name', 'email', 'key', 'key_sent')
  27
  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
  38 class TextareaWithLinks(forms.Textarea):
  39     def render(self, name, value, *args, **kwargs):
  40         t, links = value
  41         self.links = links
  42         output = super(TextareaWithLinks, self).render(name, t, *args, **kwargs)
  43         moreoutput = "<div style='margin-left: 106px'>"
  44         for k, n, v in links:
  45             moreoutput += u"<br>%s: %s" % (k, AttachmentWidget().render(n, v))
  46         output += mark_safe(moreoutput + "</div>")
  47         return output
  48
  49
  50 class SubmissionFormBase(forms.ModelForm):
  51     class Meta:
  52         model = Submission
  53         exclude = ('answers', 'marks', 'contact', 'end_time') + readonly_fields
  54
  55
  56 def get_open_answer(answers, exercise):
  57     def get_option(options, id):
  58         for option in options:
  59             if str(option['id']) == id:
  60                 return option
  61
  62     exercise_id = str(exercise['id'])
  63     answer = answers[exercise_id]
  64     if exercise['type'] == 'open':
  65         if isinstance(answer, list):
  66             toret = ''
  67             for part in answer:
  68                 field = get_option(exercise['fields'], part['id'])
  69                 toret += '- %s:\n\n%s\n\n' % (field['caption'], part['text'])
  70         else:
  71             toret = answer
  72     if exercise['type'] == 'edumed_wybor':
  73         ok = set(map(str, exercise['answer'])) == set(map(str, answer['closed_part']))
  74         toret = u'Czesc testowa [%s]:\n' % ('poprawna' if ok else 'niepoprawna')
  75         if len(answer['closed_part']):
  76             for selected in answer['closed_part']:
  77                 option = get_option(exercise['options'], selected)
  78                 toret += '%s: %s\n' % (selected, option['text'])
  79         else:
  80             toret += u'<nie wybrano odpowiedzi>\n'
  81         toret += u'\nCzesc otwarta (%s):\n\n' % ' '.join(exercise['open_part'])
  82         toret += answer['open_part']
  83
  84     return toret
  85
  86
  87 def get_form(request, submission):
  88     fields = dict()
  89     if submission and submission.answers:
  90         answers = json.loads(submission.answers)
  91         user_exercises = get_user_exercises(request.user)
  92         for exercise in exercises:
  93             if exercise not in user_exercises:
  94                 continue
  95
  96             answer_field_name = 'exercise_%s' % exercise['id']
  97             mark_field_name = 'markof_%s_by_%s' % (exercise['id'], request.user.id)
  98             if exercise['type'] in ('open', 'file_upload') or exercise.get('open_part', None):
  99                 if exercise['type'] == 'file_upload':
 100                     try:
 101                         attachment = Attachment.objects.get(submission=submission, exercise_id=exercise['id'])
 102                     except Attachment.DoesNotExist:
 103                         attachment = None
 104                     widget = AttachmentWidget
 105                     initial = attachment.file.url if attachment else None
 106                 else:
 107                     # widget = forms.Textarea(attrs={'readonly':True})
 108                     widget = TextareaWithLinks(attrs={'readonly': True})
 109                     links = []
 110                     qfiles = []
 111                     for qfield in exercise.get('fields', []):
 112                         if qfield.get('type') == 'file':
 113                             qfiles.append((qfield['id'], qfield['caption']))
 114                     if qfiles:
 115                         eid = int(exercise['id'])
 116                         by_tag = {}
 117                         for att in Attachment.objects.filter(submission=submission, exercise_id=eid).order_by('tag'):
 118                             by_tag[att.tag] = att.file.url
 119                         for tag, caption in qfiles:
 120                             v = by_tag.get(tag)
 121                             if v:
 122                                 links.append((caption, "file_%s__%s" % (eid, tag), v))
 123                     initial = get_open_answer(answers, exercise), links
 124
 125                 fields[answer_field_name] = forms.CharField(
 126                     widget=widget,
 127                     initial=initial,
 128                     label=u'Rozwiązanie zadania %s' % exercise['id'],
 129                     required=False
 130                 )
 131
 132                 choices = [(None, '-')]  # + [(i,i) for i in range(exercise['max_points']+1)],
 133                 i = 0
 134                 while i <= exercise['max_points']:
 135                     choices.append((i, i))
 136                     i += .5
 137                 fields[mark_field_name] = forms.ChoiceField(
 138                     choices=choices,
 139                     initial=submission.get_mark(user_id=request.user.id, exercise_id=exercise['id']),
 140                     label=u'Twoja ocena zadania %s' % exercise['id']
 141                 )
 142
 143     if not request.user.is_superuser:
 144         class Meta(SubmissionFormBase.Meta):
 145             pass
 146         Meta.exclude += ('examiners',)
 147         fields['Meta'] = Meta
 148
 149     return type('SubmissionForm', (SubmissionFormBase,), fields)
 150
 151
 152 class SubmissionAdmin(admin.ModelAdmin):
 153     list_display = ('__unicode__', 'todo', 'examiners_repr')
 154     readonly_fields = readonly_fields
 155
 156     def get_form(self, request, obj=None, **kwargs):
 157         return get_form(request, obj)
 158
 159     def submitted_by(self, instance):
 160         if instance.contact:
 161             return '<a href="%s">%s</a>' % (
 162                 reverse('admin:contact_contact_change', args=[instance.contact.id]),
 163                 instance.contact.contact
 164             )
 165         return '-'
 166     submitted_by.allow_tags = True
 167     submitted_by.short_description = "Zgłoszony/a przez"
 168
 169     def todo(self, submission):
 170         user = get_current_request().user
 171         user_exercises = get_user_exercises(user)
 172         user_marks = submission.marks.get(str(user.id), {})
 173         return ','.join([str(e['id']) for e in user_exercises if str(e['id']) not in user_marks.keys()])
 174     todo.short_description = 'Twoje nieocenione zadania'
 175
 176     def examiners_repr(self, submission):
 177         return ', '.join([u.username for u in submission.examiners.all()])
 178     examiners_repr.short_description = 'Przypisani do zgłoszenia'
 179
 180     def save_model(self, request, submission, form, change):
 181         for name, value in form.cleaned_data.items():
 182             if name.startswith('markof_'):
 183                 parts = name.split('_')
 184                 exercise_id = parts[1]
 185                 user_id = parts[3]
 186                 submission.set_mark(user_id=user_id, exercise_id=exercise_id, mark=value)
 187         submission.save()
 188
 189     def changelist_view(self, request, extra_context=None):
 190         context = dict(examiners=[])
 191         assignments = Assignment.objects.all()
 192         if not request.user.is_superuser:
 193             assignments = assignments.filter(user=request.user)
 194         for assignment in assignments:
 195             examiner = dict(name=assignment.user.username, todo=0)
 196             for submission in Submission.objects.filter(examiners=assignment.user):
 197                 for exercise_id in assignment.exercises:
 198                     if submission.get_mark(user_id=assignment.user.id, exercise_id=exercise_id) is None:
 199                         examiner['todo'] += 1
 200             context['examiners'].append(examiner)
 201         return super(SubmissionAdmin, self).changelist_view(request, extra_context=context)
 202
 203     def queryset(self, request):
 204         qs = super(SubmissionAdmin, self).queryset(request)
 205         if not request.user.is_superuser:
 206             qs = qs.filter(examiners=request.user)
 207         return qs
 208
 209     def get_urls(self):
 210         return patterns(
 211             '',
 212             url(r'^report/$', self.admin_site.admin_view(report_view), name='wtem_admin_report')
 213         ) + super(SubmissionAdmin, self).get_urls()
 214
 215
 216 class SubmissionsSet:
 217     def __init__(self, submissions):
 218         self.submissions = submissions
 219         self.examiners_by_exercise = {}
 220         for submission in submissions:
 221             for user_id, marks in submission.marks.items():
 222                 user = User.objects.get(pk=user_id)
 223                 for exercise_id in marks.keys():
 224                     examiners = self.examiners_by_exercise.setdefault(exercise_id, [])
 225                     if user not in examiners:
 226                         examiners.append(user)
 227             if submission.contact:
 228                 contact_body = submission.contact.body
 229                 submission.school = '%s %s' % (contact_body.get('school'), contact_body.get('school_address'))
 230
 231
 232 def report_view(request):
 233     submissions = sorted(Submission.objects.all(), key=lambda s: -s.final_result)
 234     toret = render_to_string('wtem/admin_report.csv', {
 235         'submissionsSet': SubmissionsSet(submissions),
 236         'exercise_ids': [str(e['id']) for e in exercises]})
 237     response = HttpResponse(toret, content_type='text/csv')
 238     response['Content-Disposition'] = 'attachment; filename="wyniki.csv"'
 239     return response
 240
 241
 242 class ConfirmationAdmin(admin.ModelAdmin):
 243     list_display = ('email', 'first_name', 'last_name', 'confirmed')
 244     readonly_fields = ('contact', 'readable_contact', 'key', 'confirmed')
 245
 246     def resend_mail(self, request, queryset):
 247         for confirmation in queryset:
 248             confirmation.send_mail()
 249     resend_mail.short_description = "Wyślij kod ponownie"
 250
 251     actions = [resend_mail]
 252
 253 admin.site.register(Submission, SubmissionAdmin)
 254 admin.site.register(Assignment)
 255 admin.site.register(Confirmation, ConfirmationAdmin)