apps/catalogue/forms.py

   1 # -*- coding: utf-8 -*-
   2 #
   3 # This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
   4 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   5 #
   6 from catalogue.models import User
   7 from django.db.models import Count
   8 from django import forms
   9 from django.utils.translation import ugettext_lazy as _
  10
  11 from catalogue.constants import MASTERS
  12 from catalogue.models import Book, Chunk, Template
  13
  14 class DocumentCreateForm(forms.ModelForm):
  15     """
  16         Form used for creating new documents.
  17     """
  18     file = forms.FileField(required=False)
  19     template = forms.ModelChoiceField(Template.objects, required=False)
  20     text = forms.CharField(required=False, widget=forms.Textarea)
  21
  22     class Meta:
  23         model = Book
  24         exclude = ['parent', 'parent_number', 'project']
  25
  26     def __init__(self, *args, **kwargs):
  27         super(DocumentCreateForm, self).__init__(*args, **kwargs)
  28         self.fields['slug'].widget.attrs={'class': 'autoslug'}
  29         self.fields['gallery'].widget.attrs={'class': 'autoslug'}
  30         self.fields['title'].widget.attrs={'class': 'autoslug-source'}
  31
  32     def clean(self):
  33         super(DocumentCreateForm, self).clean()
  34         file = self.cleaned_data['file']
  35         template = self.cleaned_data['template']
  36
  37         if file is not None:
  38             try:
  39                 self.cleaned_data['text'] = file.read().decode('utf-8')
  40             except UnicodeDecodeError:
  41                 raise forms.ValidationError(_("Text file must be UTF-8 encoded."))
  42         elif template is not None:
  43             self.cleaned_data['text'] = template.content
  44
  45         if not self.cleaned_data["text"]:
  46             self._errors["file"] = self.error_class([_("You must enter text, upload a file or select a template")])
  47
  48         return self.cleaned_data
  49
  50
  51 class DocumentsUploadForm(forms.Form):
  52     """
  53         Form used for uploading new documents.
  54     """
  55     file = forms.FileField(required=True, label=_('ZIP file'))
  56     dirs = forms.BooleanField(label=_('Directories are documents in chunks'),
  57             widget = forms.CheckboxInput(attrs={'disabled':'disabled'}))
  58
  59     def clean(self):
  60         file = self.cleaned_data['file']
  61
  62         import zipfile
  63         try:
  64             z = self.cleaned_data['zip'] = zipfile.ZipFile(file)
  65         except zipfile.BadZipfile:
  66             raise forms.ValidationError("Should be a ZIP file.")
  67         if z.testzip():
  68             raise forms.ValidationError("ZIP file corrupt.")
  69
  70         return self.cleaned_data
  71
  72
  73 class ChunkForm(forms.ModelForm):
  74     """
  75         Form used for editing a chunk.
  76     """
  77     user = forms.ModelChoiceField(queryset=
  78         User.objects.annotate(count=Count('chunk')).
  79         order_by('last_name', 'first_name'), required=False,
  80         label=_('Assigned to'))
  81
  82     class Meta:
  83         model = Chunk
  84         fields = ['title', 'slug', 'gallery_start', 'user', 'stage']
  85         exclude = ['number']
  86
  87     def __init__(self, *args, **kwargs):
  88         super(ChunkForm, self).__init__(*args, **kwargs)
  89         self.fields['gallery_start'].widget.attrs={'class': 'number-input'}
  90         self.fields['slug'].widget.attrs={'class': 'autoslug'}
  91         self.fields['title'].widget.attrs={'class': 'autoslug-source'}
  92
  93     def clean_slug(self):
  94         slug = self.cleaned_data['slug']
  95         try:
  96             chunk = Chunk.objects.get(book=self.instance.book, slug=slug)
  97         except Chunk.DoesNotExist:
  98             return slug
  99         if chunk == self.instance:
 100             return slug
 101         raise forms.ValidationError(_('Chunk with this slug already exists'))
 102
 103
 104 class ChunkAddForm(ChunkForm):
 105     """
 106         Form used for adding a chunk to a document.
 107     """
 108
 109     def clean_slug(self):
 110         slug = self.cleaned_data['slug']
 111         try:
 112             user = Chunk.objects.get(book=self.instance.book, slug=slug)
 113         except Chunk.DoesNotExist:
 114             return slug
 115         raise forms.ValidationError(_('Chunk with this slug already exists'))
 116
 117
 118 class BookAppendForm(forms.Form):
 119     """
 120         Form for appending a book to another book.
 121         It means moving all chunks from book A to book B and deleting A.
 122     """
 123     append_to = forms.ModelChoiceField(queryset=Book.objects.all(),
 124             label=_("Append to"))
 125
 126     def __init__(self, book, *args, **kwargs):
 127         ret =  super(BookAppendForm, self).__init__(*args, **kwargs)
 128         self.fields['append_to'].queryset = Book.objects.exclude(pk=book.pk)
 129         return ret
 130
 131
 132 class BookForm(forms.ModelForm):
 133     """Form used for editing a Book."""
 134
 135     class Meta:
 136         model = Book
 137         exclude = ['project']
 138
 139     def __init__(self, *args, **kwargs):
 140         ret = super(BookForm, self).__init__(*args, **kwargs)
 141         self.fields['slug'].widget.attrs.update({"class": "autoslug"})
 142         self.fields['title'].widget.attrs.update({"class": "autoslug-source"})
 143         return ret
 144
 145
 146 class ReadonlyBookForm(BookForm):
 147     """Form used for not editing a Book."""
 148
 149     def __init__(self, *args, **kwargs):
 150         ret = super(ReadonlyBookForm, self).__init__(*args, **kwargs)
 151         for field in self.fields.values():
 152             field.widget.attrs.update({"readonly": True})
 153         return ret
 154
 155
 156 class ChooseMasterForm(forms.Form):
 157     """
 158         Form used for fixing the chunks in a book.
 159     """
 160
 161     master = forms.ChoiceField(choices=((m, m) for m in MASTERS))