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 picture.models import Picture
   6
   7
   8 class PictureImportForm(forms.Form):
   9     picture_xml_file = forms.FileField(required=False)
  10     picture_xml = forms.CharField(required=False)
  11     picture_image_file = forms.FileField(required=False)
  12     picture_image_data = forms.CharField(required=False)
  13
  14     def clean(self):
  15         from base64 import b64decode
  16         from django.core.files.base import ContentFile
  17
  18         if not self.cleaned_data['picture_xml_file']:
  19             if self.cleaned_data['picture_xml']:
  20                 self.cleaned_data['picture_xml_file'] = \
  21                         ContentFile(self.cleaned_data['picture_xml'].encode('utf-8'))
  22             else:
  23                 raise forms.ValidationError('Proszę dostarczyć XML.')
  24
  25         if not self.cleaned_data['picture_image_file']:
  26             if self.cleaned_data['picture_image_data']:
  27                 self.cleaned_data['picture_image_file'] = \
  28                         ContentFile(b64decode(
  29                                 self.cleaned_data['picture_image_data']))
  30             else:
  31                 raise forms.ValidationError('Proszę dostarczyć obraz.')
  32
  33         return super(PictureImportForm, self).clean()
  34
  35     def save(self, commit=True, **kwargs):
  36         return Picture.from_xml_file(
  37             self.cleaned_data['picture_xml_file'], image_file=self.cleaned_data['picture_image_file'],
  38             overwrite=True, **kwargs)