1 # -*- coding: utf-8 -*-
2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
5 from random import randint
6 from django import template
7 from catalogue.models import Book
8 from social.models import Cite
9 from social.utils import likes, cites_for_tags
11 register = template.Library()
13 register.filter('likes', likes)
16 @register.assignment_tag(takes_context=True)
17 def choose_cite(context, ctx=None):
18 """Choose a cite for main page, for book or for set of tags."""
20 request = context['request']
21 assert request.user.is_staff
22 assert 'choose_cite' in request.GET
23 cite = Cite.objects.get(pk=request.GET['choose_cite'])
24 except (AssertionError, Cite.DoesNotExist):
26 cites = Cite.objects.all()
27 elif isinstance(ctx, Book):
28 cites = ctx.cite_set.all()
29 if not cites.exists():
30 cites = cites_for_tags([ctx.book_tag()])
32 cites = cites_for_tags(ctx)
33 stickies = cites.filter(sticky=True)
34 count = stickies.count()
36 cite = stickies[randint(0, count - 1)]
40 cite = cites[randint(0, count - 1)]
46 @register.inclusion_tag('social/cite_promo.html')
47 def render_cite(cite):
53 @register.inclusion_tag('social/cite_promo.html', takes_context=True)
54 def cite_promo(context, ctx=None, fallback=False):
56 'cite': choose_cite(context, ctx),
62 @register.inclusion_tag('social/shelf_tags.html', takes_context=True)
63 def shelf_tags(context, book):
64 user = context['request'].user
65 if not user.is_authenticated():
68 tags = book.tags.filter(category='set', user=user).exclude(name='')