src/picture/forms.py

   1 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   2 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   3 #
   4 from django import forms
   5 from django.utils.translation import ugettext_lazy as _
   6 from picture.models import Picture
   7
   8
   9 class PictureImportForm(forms.Form):
  10     picture_xml_file = forms.FileField(required=False)
  11     picture_xml = forms.CharField(required=False)
  12     picture_image_file = forms.FileField(required=False)
  13     picture_image_data = forms.CharField(required=False)
  14
  15     def clean(self):
  16         from base64 import b64decode
  17         from django.core.files.base import ContentFile
  18
  19         if not self.cleaned_data['picture_xml_file']:
  20             if self.cleaned_data['picture_xml']:
  21                 self.cleaned_data['picture_xml_file'] = \
  22                         ContentFile(self.cleaned_data['picture_xml'].encode('utf-8'))
  23             else:
  24                 raise forms.ValidationError(_("Please supply an XML."))
  25
  26         if not self.cleaned_data['picture_image_file']:
  27             if self.cleaned_data['picture_image_data']:
  28                 self.cleaned_data['picture_image_file'] = \
  29                         ContentFile(b64decode(
  30                                 self.cleaned_data['picture_image_data']))
  31             else:
  32                 raise forms.ValidationError(_("Please supply an image."))
  33
  34         return super(PictureImportForm, self).clean()
  35
  36     def save(self, commit=True, **kwargs):
  37         return Picture.from_xml_file(
  38             self.cleaned_data['picture_xml_file'], image_file=self.cleaned_data['picture_image_file'],
  39             overwrite=True, **kwargs)