src/picture/forms.py

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