apps/explorer/forms.py

   1 # -*- coding: utf-8 -*-
   2 from django import forms
   3
   4 from lxml import etree
   5 from librarian import dcparser
   6 import django.utils
   7
   8 from explorer import models
   9
  10 class PersonField(forms.CharField):
  11     def clean(self, value):
  12         try:
  13             return dcparser.Person.from_text( super(PersonField, self).clean(value) )
  14         except ValueError, e:
  15             raise django.utils.ValidationError(e.message)
  16
  17 def person_conv(value):
  18     if isinstance(value, dcparser.Person):
  19         return value
  20     elif isinstance(value, basestring):
  21         return dcparser.Person.from_text( unicode(value) )
  22     else:
  23         raise ValueError("Can't convert '%s' to Person object." % value)
  24
  25 class ListField(forms.Field):
  26     def __init__(self, *args, **kwargs):
  27         self.convert = kwargs.pop('converter', unicode)
  28         if not kwargs.has_key('widget'):
  29             kwargs['widget'] = forms.Textarea
  30         super(ListField, self).__init__(*args, **kwargs)
  31
  32     def _get_initial(self):
  33         return self._initial and (u'\n'.join( ( unicode(person) for person in self._initial)))
  34
  35     def _set_initial(self, value):
  36         if value is None:
  37             self._initial = None
  38         elif isinstance(value, list):
  39             self._initial = [ self.convert(e) for e in value ]
  40         elif isinstance(value, basestring):
  41             self._initial = [ self.convert(e) for e in value.split('\n') ]
  42         else:
  43             raise ValueError("Invalid value. Must be a list of dcparser.Person or string")
  44
  45     initial = property(_get_initial, _set_initial)
  46
  47     def clean(self, value):
  48         super(ListField, self).clean(value)
  49         elems = value.split('\n')
  50         try:
  51             return [self.convert(el) for el in elems]
  52         except ValueError, err:
  53             raise django.utils.ValidationError(err.message)
  54
  55 class BookForm(forms.Form):
  56     content = forms.CharField(widget=forms.Textarea)
  57     commit_message = forms.CharField(required=False)
  58
  59 class MergeForm(forms.Form):
  60     message = forms.CharField(error_messages={'required': 'Please write a merge description.'})
  61
  62 class BookUploadForm(forms.Form):
  63     file = forms.FileField(label='Source OCR file')
  64     bookname = forms.RegexField(regex='[\w-]+',  \
  65         label='Publication name', help_text='Example: slowacki-beniowski')
  66     autoxml = forms.BooleanField(required=False, initial=True, label=u"Generate DublinCore template")
  67
  68 class ImageFoldersForm(forms.Form):
  69     folders = forms.ChoiceField(required=False)
  70
  71     def __init__(self, *args, **kwargs):
  72         super(ImageFoldersForm, self).__init__(*args, **kwargs)
  73         self.fields['folders'].choices = [('', '-- Wybierz folder z obrazkami --')] + [(fn, fn) for fn in models.get_image_folders()]
  74
  75 class SplitForm(forms.Form):
  76     partname = forms.RegexField(regex='[0-9\w-]+',  \
  77         label='Part name', help_text='Example: rozdział-2')
  78     autoxml = forms.BooleanField(required=False, initial=False, label=u"Generate DublinCore")
  79
  80 class DublinCoreForm(forms.Form):
  81     about = forms.URLField(verify_exists=False)
  82     author = PersonField()
  83     title = forms.CharField()
  84     epochs = ListField()
  85     kinds = ListField()
  86     genres = ListField()
  87     created_at = forms.DateField()
  88     released_to_public_domain_at = forms.DateField(required=False)
  89     editors = ListField(widget=forms.Textarea, required=False, converter=person_conv)
  90     translators = ListField(widget=forms.Textarea, required=False, converter=person_conv)
  91     technical_editors = ListField(widget=forms.Textarea, required=False, converter=person_conv)
  92     publisher = forms.CharField()
  93     source_name = forms.CharField(widget=forms.Textarea, required=False)
  94     source_url = forms.URLField(verify_exists=False, required=False)
  95     url = forms.URLField(verify_exists=False)
  96     parts = forms.CharField(widget=forms.Textarea, required=False)
  97     license = forms.CharField(required=False)
  98     license_description = forms.CharField(widget=forms.Textarea, required=False)
  99
 100     commit_message = forms.CharField(required=False, widget=forms.HiddenInput)
 101
 102     def __init__(self, *args, **kwargs):
 103         info = kwargs.pop('info', None)
 104         super(DublinCoreForm, self).__init__(*args, **kwargs)
 105
 106         if isinstance(info, dcparser.BookInfo):
 107             vdict = info.to_dict()
 108             for name in self.fields.keys():
 109                 if vdict.has_key(name):
 110                     self.fields[name].initial = vdict[name]