apps/explorer/forms.py

   1 from django import forms
   2
   3 from lxml import etree
   4 from librarian import dcparser
   5
   6 from explorer import models
   7
   8 class BookForm(forms.Form):
   9     content = forms.CharField(widget=forms.Textarea)
  10     message = forms.CharField(required=False)
  11
  12 class ImageFoldersForm(forms.Form):
  13     folders = forms.ChoiceField(required=False)
  14
  15     def __init__(self, *args, **kwargs):
  16         super(ImageFoldersForm, self).__init__(*args, **kwargs)
  17         self.fields['folders'].choices = [('', '-- Wybierz folder z obrazkami --')] + [(fn, fn) for fn in models.get_image_folders()]
  18
  19
  20 class DublinCoreForm(forms.Form):
  21     wiki_url = forms.URLField(verify_exists=False)
  22     author = forms.CharField()
  23     title = forms.CharField()
  24     epoch = forms.CharField()
  25     kind = forms.CharField()
  26     genre = forms.CharField()
  27     created_at = forms.DateField()
  28     released_to_public_domain_at = forms.DateField()
  29     translator = forms.CharField(required=False)
  30     technical_editor = forms.CharField(required=False)
  31     publisher = forms.CharField()
  32     source_name = forms.CharField(widget=forms.Textarea)
  33     source_url = forms.URLField(verify_exists=False)
  34     url = forms.URLField(verify_exists=False)
  35     parts = forms.CharField(widget=forms.Textarea, required=False)
  36     license = forms.CharField(required=False)
  37     license_description = forms.CharField(widget=forms.Textarea, required=False)
  38
  39     def __init__(self, *args, **kwargs):
  40         text = None
  41         if 'text' in kwargs:
  42             text = kwargs.pop('text')
  43
  44         super(DublinCoreForm, self).__init__(*args, **kwargs)
  45
  46         if text is not None:
  47             book_info = dcparser.BookInfo.from_string(text)
  48             for name, value in book_info.to_dict().items():
  49                 self.fields[name].initial = value
  50
  51     def save(self, repository, path):
  52         file_contents = repository.get_file(path).data()
  53         doc = etree.fromstring(file_contents)
  54
  55         book_info = dcparser.BookInfo()
  56         for name, value in self.cleaned_data.items():
  57             if value is not None and value != '':
  58                 setattr(book_info, name, value)
  59         rdf = etree.XML(book_info.to_xml())
  60
  61         old_rdf = doc.getroottree().find('//{http://www.w3.org/1999/02/22-rdf-syntax-ns#}RDF')
  62         old_rdf.getparent().remove(old_rdf)
  63         doc.insert(0, rdf)
  64         repository.add_file(path, unicode(etree.tostring(doc), 'utf-8'))
  65