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.core.urlresolvers import reverse
   9
  10 from .models import Submission, Assignment
  11 from .middleware import get_current_request
  12
  13
  14 f = file(os.path.dirname(__file__) + '/fixtures/exercises.json')
  15 exercises = simplejson.loads(f.read())
  16 f.close()
  17
  18 def get_user_exercises(user):
  19     assignment = Assignment.objects.get(user = user)
  20     return [e for e in exercises if e['id'] in assignment.exercises]
  21
  22
  23 readonly_fields = ('submitted_by', 'first_name', 'last_name', 'email', 'key', 'key_sent')
  24
  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             if exercise['type'] == 'open' or exercise.get('open_part', None):
  71                 answer_field_name = 'exercise_%s' % exercise['id']
  72                 mark_field_name = 'markof_%s_by_%s' % (exercise['id'], request.user.id)
  73                 fields[answer_field_name] = forms.CharField(
  74                     widget = forms.Textarea(attrs={'readonly':True}),
  75                     initial = get_open_answer(answers, exercise),
  76                     label = 'Rozwiązanie zadania %s' % exercise['id']
  77                 )
  78
  79                 fields[mark_field_name] = forms.ChoiceField(
  80                     choices = [(None, '-')] + [(i,i) for i in range(exercise['max_points']+1)],
  81                     initial = submission.get_mark(user_id = request.user.id, exercise_id = exercise['id']),
  82                     label = u'Twoja ocena zadania %s' % exercise['id']
  83                 )
  84     return type('SubmissionForm', (SubmissionFormBase,), fields)
  85
  86
  87 class SubmissionAdmin(admin.ModelAdmin):
  88     list_display = ('__unicode__', 'todo',)
  89     readonly_fields = readonly_fields
  90
  91     def get_form(self, request, obj, **kwargs):
  92         return get_form(request, obj)
  93
  94     def submitted_by(self, instance):
  95         if instance.contact:
  96             return '<a href="%s">%s</a>' % (
  97                 reverse('admin:contact_contact_change', args = [instance.contact.id]),
  98                 instance.contact.contact
  99             )
 100         return '-'
 101     submitted_by.allow_tags = True
 102     submitted_by.short_description = "Zgłoszony/a przez"
 103
 104     def todo(self, submission):
 105         user = get_current_request().user
 106         user_exercises = get_user_exercises(user)
 107         user_marks = submission.marks.get(str(user.id), {})
 108         return ','.join([str(e['id']) for e in user_exercises if str(e['id']) not in user_marks.keys()])
 109
 110     def save_model(self, request, submission, form, change):
 111         for name, value in form.cleaned_data.items():
 112             if name.startswith('markof_'):
 113                 parts = name.split('_')
 114                 exercise_id = parts[1]
 115                 user_id = parts[3]
 116                 submission.set_mark(user_id = user_id, exercise_id = exercise_id, mark = value)
 117         submission.save()
 118
 119
 120 admin.site.register(Submission, SubmissionAdmin)
 121 admin.site.register(Assignment)