apps/explorer/forms.py

   1 from django import forms
   2
   3 from lxml import etree
   4 from librarian import dcparser
   5 import django.utils
   6
   7 from explorer import models
   8
   9 class PersonField(forms.CharField):
  10     def clean(self, value):
  11         try:
  12             return dcparser.Person.from_text( super(PersonField, self).clean(value) )
  13         except ValueError, e:
  14             raise django.utils.ValidationError(e.message)
  15
  16 class PersonListField(forms.Field):
  17
  18     def __init__(self, *args, **kwargs):
  19         super(PersonListField, self).__init__(*args, **kwargs)
  20
  21     def _get_initial(self):
  22         return u'\n'.join( ( unicode(person) for person in self._initial) )
  23
  24     def _set_initial(self, value):
  25         if value is None:
  26             self._initial = None
  27         elif isinstance(value, list):
  28             self._initial = [ e if isinstance(e, dcparser.Person) \
  29                 else dcparser.Person.from_text(e) for e in value ]
  30         elif isinstance(value, basestring):
  31             self._initial = [dcparser.Person.from_text(token) for token in value.split('\n') ]
  32         else:
  33             raise ValueError("Invalid value. Must be a list of dcparser.Person or string")
  34
  35     initial = property(_get_initial, _set_initial)
  36
  37     def clean(self, value):
  38         super(PersonListField, self).clean(value)
  39         people = value.split('\n')
  40         try:
  41             return [dcparser.Person.from_text(person) for person in people]
  42         except ValueError, e:
  43             raise django.utils.ValidationError(e.message)
  44
  45 class BookForm(forms.Form):
  46     content = forms.CharField(widget=forms.Textarea)
  47     commit_message = forms.CharField(required=False)
  48
  49 class BookUploadForm(forms.Form):
  50     file = forms.FileField()
  51
  52 class ImageFoldersForm(forms.Form):
  53     folders = forms.ChoiceField(required=False)
  54
  55     def __init__(self, *args, **kwargs):
  56         super(ImageFoldersForm, self).__init__(*args, **kwargs)
  57         self.fields['folders'].choices = [('', '-- Wybierz folder z obrazkami --')] + [(fn, fn) for fn in models.get_image_folders()]
  58
  59
  60 class DublinCoreForm(forms.Form):
  61     about = forms.URLField(verify_exists=False)
  62     author = PersonField()
  63     title = forms.CharField()
  64     epoch = forms.CharField()
  65     kind = forms.CharField()
  66     genre = forms.CharField()
  67     created_at = forms.DateField()
  68     released_to_public_domain_at = forms.DateField()
  69     editors = PersonListField(widget=forms.Textarea, required=False)
  70     translator = PersonField(required=False)
  71     technical_editor = PersonField(required=False)
  72     publisher = PersonField()
  73     source_name = forms.CharField(widget=forms.Textarea)
  74     source_url = forms.URLField(verify_exists=False)
  75     url = forms.URLField(verify_exists=False)
  76     parts = forms.CharField(widget=forms.Textarea, required=False)
  77     license = forms.CharField(required=False)
  78     license_description = forms.CharField(widget=forms.Textarea, required=False)
  79
  80     commit_message = forms.CharField(required=False, widget=forms.HiddenInput)
  81
  82     def __init__(self, *args, **kwargs):
  83         text = None
  84         info = kwargs.pop('info', None)
  85
  86         super(DublinCoreForm, self).__init__(*args, **kwargs)
  87
  88         if isinstance(info, dcparser.BookInfo):
  89             for name, value in info.to_dict().items():
  90                 self.fields[name].initial = value