src/social/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 django.utils.translation import gettext_lazy as _
   6
   7 from catalogue.models import Book, Tag
   8 from catalogue import utils
   9 from social.utils import get_set, set_sets
  10
  11
  12 class UserSetsForm(forms.Form):
  13     def __init__(self, book, user, *args, **kwargs):
  14         super(UserSetsForm, self).__init__(*args, **kwargs)
  15         self.fields['set_ids'] = forms.ChoiceField(
  16             choices=[(tag.id, tag.name) for tag in Tag.objects.filter(category='set', user=user).iterator()],
  17         )
  18
  19
  20 class ObjectSetsForm(forms.Form):
  21     tags = forms.CharField(label=_('Tags (comma-separated)'), required=False,
  22                            widget=forms.Textarea())
  23
  24     def __init__(self, obj, user, *args, **kwargs):
  25         self._obj = obj
  26         self._user = user
  27         data = kwargs.setdefault('data', {})
  28         if 'tags' not in data and user.is_authenticated:
  29             data['tags'] = ', '.join(
  30                 obj.tags.filter(category='set', user=user).exclude(name__in=(None, '')).values_list('name', flat=True))
  31         super(ObjectSetsForm, self).__init__(*args, **kwargs)
  32
  33     def save(self, request):
  34         tags = [get_set(self._user, tag_name.strip()) for tag_name in self.cleaned_data['tags'].split(',')]
  35         set_sets(self._user, self._obj, tags)
  36         return {"like": True}
  37
  38
  39 class NewSetForm(forms.Form):
  40     name = forms.CharField(max_length=50, required=True)
  41
  42     def __init__(self, *args, **kwargs):
  43         super(NewSetForm, self).__init__(*args, **kwargs)
  44         self.fields['name'].widget.attrs['title'] = _('Name of the new shelf')
  45
  46     def save(self, user, commit=True):
  47         name = self.cleaned_data['name']
  48         new_set = Tag(name=name, slug=utils.get_random_hash(name), sort_key=name.lower(), category='set', user=user)
  49
  50         new_set.save()
  51         return new_set
  52
  53
  54 class AddSetForm(forms.Form):
  55     name = forms.CharField(max_length=50)
  56     book = forms.IntegerField()
  57
  58     def save(self, user):
  59         name = self.cleaned_data['name'].strip()
  60         if not name: return
  61         tag = get_set(user, name)
  62         try:
  63             book = Book.objects.get(id=self.cleaned_data['book'])
  64         except Book.DoesNotExist:
  65             return
  66
  67         try:
  68             book.tag_relations.create(tag=tag)
  69         except:
  70             pass
  71
  72         return book, tag
  73
  74
  75 class RemoveSetForm(forms.Form):
  76     slug = forms.CharField(max_length=50)
  77     book = forms.IntegerField()
  78
  79     def save(self, user):
  80         slug = self.cleaned_data['slug']
  81         try:
  82             tag = Tag.objects.get(user=user, slug=slug)
  83         except Tag.DoesNotExist:
  84             return
  85         try:
  86             book = Book.objects.get(id=self.cleaned_data['book'])
  87         except Book.DoesNotExist:
  88             return
  89
  90         try:
  91             book.tag_relations.filter(tag=tag).delete()
  92         except:
  93             pass
  94
  95         return book, tag