karmaworld/apps/courses/forms.py

   1 #!/usr/bin/env python
   2 # -*- coding:utf8 -*-
   3 # Copyright (C) 2012  FinalsClub Foundation
   4
   5 from django.conf import settings
   6 from django.forms import ModelForm
   7 from django.forms import CharField
   8
   9 from ajax_select.fields import AutoCompleteSelectField
  10 from ajax_select.fields import AutoCompleteSelectWidget
  11 from ajax_select_cascade.fields import AutoCompleteDependentSelectField
  12 from ajax_select_cascade.fields import AutoCompleteDependentSelectWidget
  13
  14 from karmaworld.apps.courses.models import Course
  15
  16 class CourseForm(ModelForm):
  17     school = AutoCompleteSelectField(
  18         'school',
  19         widget=AutoCompleteSelectWidget(
  20             'school',
  21             attrs={'id': 'dom_autocomplete_school'}
  22         )
  23     )
  24     department = AutoCompleteDependentSelectField(
  25         'dept_given_school',
  26         widget=AutoCompleteDependentSelectWidget(
  27             'dept_given_school',
  28              attrs={'data-upstream-id': 'dom_autocomplete_school'},
  29         )
  30     )
  31
  32     def __init__(self, *args, **kwargs):
  33         """ Add a dynamically named field. """
  34         super(CourseForm, self).__init__(*args, **kwargs)
  35         self.fields[settings.HONEYPOT_FIELD_NAME] = CharField(required=False)
  36
  37     class Meta:
  38         model = Course
  39         # order the fields
  40         fields = ('school', 'department', 'name', 'instructor_name',
  41                   'instructor_email', 'url')
  42
  43     def clean(self, *args, **kwargs):
  44         """ Additional form validation. """
  45
  46         # Call ModelFormMixin or whoever normally cleans house.
  47         cleaned_data = super(CourseForm, self).clean(*args, **kwargs)
  48
  49         # parts of this code borrow from
  50         # https://github.com/sunlightlabs/django-honeypot
  51         hfn = settings.HONEYPOT_FIELD_NAME
  52         formhoneypot = cleaned_data.get(hfn, None)
  53         if formhoneypot and (formhoneypot != settings.HONEYPOT_VALUE):
  54             # Highlight a failure to follow instructions.
  55             # When the template dynamically generates the form, replace
  56             # 'honeypot' with hfn
  57             self._errors['honeypot'] = [u'You did not follow directions.']
  58             del cleaned_data[hfn]
  59         return cleaned_data