src/catalogue/views.py

   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.
   4 #
   5 from collections import OrderedDict
   6 import re
   7 import random
   8
   9 from django.conf import settings
  10 from django.template import RequestContext
  11 from django.template.loader import render_to_string
  12 from django.shortcuts import render_to_response, get_object_or_404, render, redirect
  13 from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect, JsonResponse
  14 from django.core.urlresolvers import reverse
  15 from django.db.models import Q
  16 from django.contrib.auth.decorators import login_required, user_passes_test
  17 from django.utils.http import urlquote_plus
  18 from django.utils import translation
  19 from django.utils.translation import ugettext as _, ugettext_lazy
  20
  21 from ajaxable.utils import AjaxableFormView
  22 from pdcounter.models import BookStub, Author
  23 from pdcounter import views as pdcounter_views
  24 from picture.models import Picture, PictureArea
  25 from ssify import ssi_included, ssi_expect, SsiVariable as Var
  26 from suggest.forms import PublishingSuggestForm
  27 from catalogue import constants
  28 from catalogue import forms
  29 from catalogue.helpers import get_top_level_related_tags
  30 from catalogue.models import Book, Collection, Tag, Fragment
  31 from catalogue.utils import split_tags
  32
  33 staff_required = user_passes_test(lambda user: user.is_staff)
  34
  35
  36 def catalogue(request):
  37     return render(request, 'catalogue/catalogue.html', {
  38         'books': Book.objects.filter(parent=None),
  39         'pictures': Picture.objects.all(),
  40         'collections': Collection.objects.all(),
  41         'active_menu_item': 'all_works',
  42     })
  43
  44
  45 def book_list(request, filters=None, template_name='catalogue/book_list.html',
  46               nav_template_name='catalogue/snippets/book_list_nav.html',
  47               list_template_name='catalogue/snippets/book_list.html'):
  48     """ generates a listing of all books, optionally filtered """
  49     books_by_author, orphans, books_by_parent = Book.book_list(filters)
  50     books_nav = OrderedDict()
  51     for tag in books_by_author:
  52         if books_by_author[tag]:
  53             books_nav.setdefault(tag.sort_key[0], []).append(tag)
  54     # WTF: dlaczego nie include?
  55     return render_to_response(template_name, {
  56         'rendered_nav': render_to_string(nav_template_name, {'books_nav': books_nav}),
  57         'rendered_book_list': render_to_string(list_template_name, {
  58             'books_by_author': books_by_author,
  59             'orphans': orphans,
  60             'books_by_parent': books_by_parent,
  61         })
  62     }, context_instance=RequestContext(request))
  63
  64
  65 def daisy_list(request):
  66     return book_list(request, Q(media__type='daisy'), template_name='catalogue/daisy_list.html')
  67
  68
  69 def collection(request, slug):
  70     coll = get_object_or_404(Collection, slug=slug)
  71     return render(request, 'catalogue/collection.html', {'collection': coll})
  72
  73
  74 def differentiate_tags(request, tags, ambiguous_slugs):
  75     beginning = '/'.join(tag.url_chunk for tag in tags)
  76     unparsed = '/'.join(ambiguous_slugs[1:])
  77     options = []
  78     for tag in Tag.objects.filter(slug=ambiguous_slugs[0]):
  79         options.append({
  80             'url_args': '/'.join((beginning, tag.url_chunk, unparsed)).strip('/'),
  81             'tags': [tag]
  82         })
  83     return render_to_response(
  84         'catalogue/differentiate_tags.html', {'tags': tags, 'options': options, 'unparsed': ambiguous_slugs[1:]},
  85         context_instance=RequestContext(request))
  86
  87
  88 def object_list(request, objects, fragments=None, related_tags=None, tags=None, list_type='books', extra=None):
  89     if not tags:
  90         tags = []
  91     tag_ids = [tag.pk for tag in tags]
  92
  93     related_tag_lists = []
  94     if related_tags:
  95         related_tag_lists.append(related_tags)
  96     else:
  97         related_tag_lists.append(
  98             Tag.objects.usage_for_queryset(objects, counts=True).exclude(category='set').exclude(pk__in=tag_ids))
  99     if not (extra and extra.get('theme_is_set')):
 100         if fragments is None:
 101             if list_type == 'gallery':
 102                 fragments = PictureArea.objects.filter(picture__in=objects)
 103             else:
 104                 fragments = Fragment.objects.filter(book__in=objects)
 105         related_tag_lists.append(
 106             Tag.objects.usage_for_queryset(fragments, counts=True).filter(category='theme').exclude(pk__in=tag_ids))
 107
 108     categories = split_tags(*related_tag_lists)
 109
 110     objects = list(objects)
 111     if len(objects) > 3:
 112         best = random.sample(objects, 3)
 113     else:
 114         best = objects
 115
 116     result = {
 117         'object_list': objects,
 118         'categories': categories,
 119         'list_type': list_type,
 120         'tags': tags,
 121
 122         'formats_form': forms.DownloadFormatsForm(),
 123         'best': best,
 124         'active_menu_item': list_type,
 125     }
 126     if extra:
 127         result.update(extra)
 128     return render_to_response(
 129         'catalogue/tagged_object_list.html', result,
 130         context_instance=RequestContext(request))
 131
 132
 133 def literature(request):
 134     books = Book.objects.filter(parent=None)
 135
 136     last_published = Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:20]
 137     most_popular = Book.objects.exclude(cover_thumb='')\
 138                        .order_by('-popularity__count', 'sort_key_author', 'sort_key')[:20]
 139     return object_list(request, books, related_tags=get_top_level_related_tags([]), extra={
 140         'last_published': last_published,
 141         'most_popular': most_popular,
 142     })
 143
 144
 145 def gallery(request):
 146     return object_list(request, Picture.objects.all(), list_type='gallery')
 147
 148
 149 def audiobooks(request):
 150     audiobooks = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
 151     return object_list(request, audiobooks, list_type='audiobooks', extra={
 152         'daisy': Book.objects.filter(media__type='daisy').distinct(),
 153     })
 154
 155
 156 class ResponseInstead(Exception):
 157     def __init__(self, response):
 158         super(ResponseInstead, self).__init__()
 159         self.response = response
 160
 161
 162 def analyse_tags(request, tag_str):
 163     try:
 164         tags = Tag.get_tag_list(tag_str)
 165     except Tag.DoesNotExist:
 166         # Perhaps the user is asking about an author in Public Domain
 167         # counter (they are not represented in tags)
 168         chunks = tag_str.split('/')
 169         if len(chunks) == 2 and chunks[0] == 'autor':
 170             raise ResponseInstead(pdcounter_views.author_detail(request, chunks[1]))
 171         else:
 172             raise Http404
 173     except Tag.MultipleObjectsReturned, e:
 174         # Ask the user to disambiguate
 175         raise ResponseInstead(differentiate_tags(request, e.tags, e.ambiguous_slugs))
 176     except Tag.UrlDeprecationWarning, e:
 177         raise ResponseInstead(HttpResponsePermanentRedirect(
 178             reverse('tagged_object_list', args=['/'.join(tag.url_chunk for tag in e.tags)])))
 179
 180     try:
 181         if len(tags) > settings.MAX_TAG_LIST:
 182             raise Http404
 183     except AttributeError:
 184         pass
 185
 186     return tags
 187
 188
 189 def theme_list(request, tags, list_type):
 190     shelf_tags = [tag for tag in tags if tag.category == 'set']
 191     fragment_tags = [tag for tag in tags if tag.category != 'set']
 192     if list_type == 'gallery':
 193         fragments = PictureArea.tagged.with_all(fragment_tags)
 194     else:
 195         fragments = Fragment.tagged.with_all(fragment_tags)
 196
 197     if shelf_tags:
 198         # TODO: Pictures on shelves not supported yet.
 199         books = Book.tagged.with_all(shelf_tags).order_by()
 200         fragments = fragments.filter(Q(book__in=books) | Q(book__ancestor__in=books))
 201
 202     if not fragments and len(tags) == 1:
 203         tag = tags[0]
 204         if tag.category == 'theme' and (
 205                 PictureArea.tagged.with_any([tag]).exists() or
 206                 Picture.tagged.with_any([tag]).exists()):
 207             return redirect('tagged_object_list_gallery', '/'.join(tag.url_chunk for tag in tags))
 208
 209     return object_list(request, fragments, tags=tags, list_type=list_type, extra={
 210         'theme_is_set': True,
 211         'active_menu_item': 'theme',
 212     })
 213
 214
 215 def tagged_object_list(request, tags, list_type):
 216     try:
 217         tags = analyse_tags(request, tags)
 218     except ResponseInstead as e:
 219         return e.response
 220
 221     if list_type == 'gallery' and any(tag.category == 'set' for tag in tags):
 222         raise Http404
 223
 224     if any(tag.category == 'theme' for tag in tags):
 225         return theme_list(request, tags, list_type=list_type)
 226
 227     if list_type == 'books':
 228         books = Book.tagged.with_all(tags)
 229
 230         if any(tag.category == 'set' for tag in tags):
 231             params = {'objects': books}
 232         else:
 233             params = {
 234                 'objects': Book.tagged_top_level(tags),
 235                 'fragments': Fragment.objects.filter(book__in=books),
 236                 'related_tags': get_top_level_related_tags(tags),
 237             }
 238     elif list_type == 'gallery':
 239         params = {'objects': Picture.tagged.with_all(tags)}
 240     elif list_type == 'audiobooks':
 241         audiobooks = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
 242         params = {
 243             'objects': Book.tagged.with_all(tags, audiobooks),
 244             'extra': {
 245                 'daisy': Book.tagged.with_all(tags, audiobooks.filter(media__type='daisy').distinct()),
 246             }
 247         }
 248     else:
 249         raise Http404
 250
 251     return object_list(request, tags=tags, list_type=list_type, **params)
 252
 253
 254 def book_fragments(request, slug, theme_slug):
 255     book = get_object_or_404(Book, slug=slug)
 256     theme = get_object_or_404(Tag, slug=theme_slug, category='theme')
 257     fragments = Fragment.tagged.with_all([theme]).filter(
 258         Q(book=book) | Q(book__ancestor=book))
 259
 260     return render_to_response('catalogue/book_fragments.html', {
 261         'book': book,
 262         'theme': theme,
 263         'fragments': fragments,
 264     }, context_instance=RequestContext(request))
 265
 266
 267 def book_detail(request, slug):
 268     try:
 269         book = Book.objects.get(slug=slug)
 270     except Book.DoesNotExist:
 271         return pdcounter_views.book_stub_detail(request, slug)
 272
 273     return render_to_response('catalogue/book_detail.html', {
 274         'book': book,
 275         'tags': book.tags.exclude(category__in=('set', 'theme')),
 276         'book_children': book.children.all().order_by('parent_number', 'sort_key'),
 277     }, context_instance=RequestContext(request))
 278
 279
 280 def get_audiobooks(book):
 281     ogg_files = {}
 282     for m in book.media.filter(type='ogg').order_by().iterator():
 283         ogg_files[m.name] = m
 284
 285     audiobooks = []
 286     have_oggs = True
 287     projects = set()
 288     for mp3 in book.media.filter(type='mp3').iterator():
 289         # ogg files are always from the same project
 290         meta = mp3.extra_info
 291         project = meta.get('project')
 292         if not project:
 293             # temporary fallback
 294             project = u'CzytamySłuchając'
 295
 296         projects.add((project, meta.get('funded_by', '')))
 297
 298         media = {'mp3': mp3}
 299
 300         ogg = ogg_files.get(mp3.name)
 301         if ogg:
 302             media['ogg'] = ogg
 303         else:
 304             have_oggs = False
 305         audiobooks.append(media)
 306
 307     projects = sorted(projects)
 308     return audiobooks, projects, have_oggs
 309
 310
 311 # używane w publicznym interfejsie
 312 def player(request, slug):
 313     book = get_object_or_404(Book, slug=slug)
 314     if not book.has_media('mp3'):
 315         raise Http404
 316
 317     audiobooks, projects, have_oggs = get_audiobooks(book)
 318
 319     return render_to_response('catalogue/player.html', {
 320         'book': book,
 321         'audiobook': '',
 322         'audiobooks': audiobooks,
 323         'projects': projects,
 324     }, context_instance=RequestContext(request))
 325
 326
 327 def book_text(request, slug):
 328     book = get_object_or_404(Book, slug=slug)
 329
 330     if not book.has_html_file():
 331         raise Http404
 332     return render_to_response('catalogue/book_text.html', {'book': book,}, context_instance=RequestContext(request))
 333
 334
 335 # ==========
 336 # = Search =
 337 # ==========
 338
 339 def _no_diacritics_regexp(query):
 340     """ returns a regexp for searching for a query without diacritics
 341
 342     should be locale-aware """
 343     names = {
 344         u'a': u'aąĄ', u'c': u'cćĆ', u'e': u'eęĘ', u'l': u'lłŁ', u'n': u'nńŃ', u'o': u'oóÓ', u's': u'sśŚ',
 345         u'z': u'zźżŹŻ',
 346         u'ą': u'ąĄ', u'ć': u'ćĆ', u'ę': u'ęĘ', u'ł': u'łŁ', u'ń': u'ńŃ', u'ó': u'óÓ', u'ś': u'śŚ', u'ź': u'źŹ',
 347         u'ż': u'żŻ'
 348         }
 349
 350     def repl(m):
 351         l = m.group()
 352         return u"(%s)" % '|'.join(names[l])
 353
 354     return re.sub(u'[%s]' % (u''.join(names.keys())), repl, query)
 355
 356
 357 def unicode_re_escape(query):
 358     """ Unicode-friendly version of re.escape """
 359     return re.sub(r'(?u)(\W)', r'\\\1', query)
 360
 361
 362 def _word_starts_with(name, prefix):
 363     """returns a Q object getting models having `name` contain a word
 364     starting with `prefix`
 365
 366     We define word characters as alphanumeric and underscore, like in JS.
 367
 368     Works for MySQL, PostgreSQL, Oracle.
 369     For SQLite, _sqlite* version is substituted for this.
 370     """
 371     kwargs = {}
 372
 373     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 374     # can't use [[:<:]] (word start),
 375     # but we want both `xy` and `(xy` to catch `(xyz)`
 376     kwargs['%s__iregex' % name] = u"(^|[^[:alnum:]_])%s" % prefix
 377
 378     return Q(**kwargs)
 379
 380
 381 def _word_starts_with_regexp(prefix):
 382     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 383     return ur"(^|(?<=[^\wąćęłńóśźżĄĆĘŁŃÓŚŹŻ]))%s" % prefix
 384
 385
 386 def _sqlite_word_starts_with(name, prefix):
 387     """ version of _word_starts_with for SQLite
 388
 389     SQLite in Django uses Python re module
 390     """
 391     kwargs = {'%s__iregex' % name: _word_starts_with_regexp(prefix)}
 392     return Q(**kwargs)
 393
 394
 395 if hasattr(settings, 'DATABASES'):
 396     if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
 397         _word_starts_with = _sqlite_word_starts_with
 398 elif settings.DATABASE_ENGINE == 'sqlite3':
 399     _word_starts_with = _sqlite_word_starts_with
 400
 401
 402 class App:
 403     def __init__(self, name, view):
 404         self.name = name
 405         self._view = view
 406         self.lower = name.lower()
 407         self.category = 'application'
 408
 409     def view(self):
 410         return reverse(*self._view)
 411
 412 _apps = (
 413     App(u'Leśmianator', (u'lesmianator', )),
 414     )
 415
 416
 417 def _tags_starting_with(prefix, user=None):
 418     prefix = prefix.lower()
 419     # PD counter
 420     book_stubs = BookStub.objects.filter(_word_starts_with('title', prefix))
 421     authors = Author.objects.filter(_word_starts_with('name', prefix))
 422
 423     books = Book.objects.filter(_word_starts_with('title', prefix))
 424     tags = Tag.objects.filter(_word_starts_with('name', prefix))
 425     if user and user.is_authenticated():
 426         tags = tags.filter(~Q(category='set') | Q(user=user))
 427     else:
 428         tags = tags.exclude(category='set')
 429
 430     prefix_regexp = re.compile(_word_starts_with_regexp(prefix))
 431     return list(books) + list(tags) + [app for app in _apps if prefix_regexp.search(app.lower)] + list(book_stubs) + \
 432         list(authors)
 433
 434
 435 def _get_result_link(match, tag_list):
 436     if isinstance(match, Tag):
 437         return reverse('catalogue.views.tagged_object_list',
 438                        kwargs={'tags': '/'.join(tag.url_chunk for tag in tag_list + [match])})
 439     elif isinstance(match, App):
 440         return match.view()
 441     else:
 442         return match.get_absolute_url()
 443
 444
 445 def _get_result_type(match):
 446     if isinstance(match, Book) or isinstance(match, BookStub):
 447         match_type = 'book'
 448     else:
 449         match_type = match.category
 450     return match_type
 451
 452
 453 def books_starting_with(prefix):
 454     prefix = prefix.lower()
 455     return Book.objects.filter(_word_starts_with('title', prefix))
 456
 457
 458 def find_best_matches(query, user=None):
 459     """ Finds a Book, Tag, BookStub or Author best matching a query.
 460
 461     Returns a with:
 462       - zero elements when nothing is found,
 463       - one element when a best result is found,
 464       - more then one element on multiple exact matches
 465
 466     Raises a ValueError on too short a query.
 467     """
 468
 469     query = query.lower()
 470     if len(query) < 2:
 471         raise ValueError("query must have at least two characters")
 472
 473     result = tuple(_tags_starting_with(query, user))
 474     # remove pdcounter stuff
 475     book_titles = set(match.pretty_title().lower() for match in result
 476                       if isinstance(match, Book))
 477     authors = set(match.name.lower() for match in result
 478                   if isinstance(match, Tag) and match.category == 'author')
 479     result = tuple(res for res in result if not (
 480                  (isinstance(res, BookStub) and res.pretty_title().lower() in book_titles) or
 481                  (isinstance(res, Author) and res.name.lower() in authors)
 482              ))
 483
 484     exact_matches = tuple(res for res in result if res.name.lower() == query)
 485     if exact_matches:
 486         return exact_matches
 487     else:
 488         return tuple(result)[:1]
 489
 490
 491 def search(request):
 492     tags = request.GET.get('tags', '')
 493     prefix = request.GET.get('q', '')
 494
 495     try:
 496         tag_list = Tag.get_tag_list(tags)
 497     except (Tag.DoesNotExist, Tag.MultipleObjectsReturned, Tag.UrlDeprecationWarning):
 498         tag_list = []
 499
 500     try:
 501         result = find_best_matches(prefix, request.user)
 502     except ValueError:
 503         return render_to_response(
 504             'catalogue/search_too_short.html', {'tags': tag_list, 'prefix': prefix},
 505             context_instance=RequestContext(request))
 506
 507     if len(result) == 1:
 508         return HttpResponseRedirect(_get_result_link(result[0], tag_list))
 509     elif len(result) > 1:
 510         return render_to_response(
 511             'catalogue/search_multiple_hits.html',
 512             {
 513                 'tags': tag_list, 'prefix': prefix,
 514                 'results': ((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)
 515             },
 516             context_instance=RequestContext(request))
 517     else:
 518         form = PublishingSuggestForm(initial={"books": prefix + ", "})
 519         return render_to_response(
 520             'catalogue/search_no_hits.html',
 521             {'tags': tag_list, 'prefix': prefix, "pubsuggest_form": form},
 522             context_instance=RequestContext(request))
 523
 524
 525 def tags_starting_with(request):
 526     prefix = request.GET.get('q', '')
 527     # Prefix must have at least 2 characters
 528     if len(prefix) < 2:
 529         return HttpResponse('')
 530     tags_list = []
 531     result = ""
 532     for tag in _tags_starting_with(prefix, request.user):
 533         if tag.name not in tags_list:
 534             result += "\n" + tag.name
 535             tags_list.append(tag.name)
 536     return HttpResponse(result)
 537
 538
 539 def json_tags_starting_with(request, callback=None):
 540     # Callback for JSONP
 541     prefix = request.GET.get('q', '')
 542     callback = request.GET.get('callback', '')
 543     # Prefix must have at least 2 characters
 544     if len(prefix) < 2:
 545         return HttpResponse('')
 546     tags_list = []
 547     for tag in _tags_starting_with(prefix, request.user):
 548         if tag.name not in tags_list:
 549             tags_list.append(tag.name)
 550     if request.GET.get('mozhint', ''):
 551         result = [prefix, tags_list]
 552     else:
 553         result = {"matches": tags_list}
 554     response = JsonResponse(result, safe=False)
 555     if callback:
 556         response.content = callback + "(" + response.content + ");"
 557     return response
 558
 559
 560 # =========
 561 # = Admin =
 562 # =========
 563 @login_required
 564 @staff_required
 565 def import_book(request):
 566     """docstring for import_book"""
 567     book_import_form = forms.BookImportForm(request.POST, request.FILES)
 568     if book_import_form.is_valid():
 569         try:
 570             book_import_form.save()
 571         except:
 572             import sys
 573             import pprint
 574             import traceback
 575             info = sys.exc_info()
 576             exception = pprint.pformat(info[1])
 577             tb = '\n'.join(traceback.format_tb(info[2]))
 578             return HttpResponse(
 579                     _("An error occurred: %(exception)s\n\n%(tb)s") % {'exception': exception, 'tb': tb},
 580                     mimetype='text/plain')
 581         return HttpResponse(_("Book imported successfully"))
 582     else:
 583         return HttpResponse(_("Error importing file: %r") % book_import_form.errors)
 584
 585
 586 # info views for API
 587
 588 def book_info(request, book_id, lang='pl'):
 589     book = get_object_or_404(Book, id=book_id)
 590     # set language by hand
 591     translation.activate(lang)
 592     return render_to_response('catalogue/book_info.html', {'book': book}, context_instance=RequestContext(request))
 593
 594
 595 def tag_info(request, tag_id):
 596     tag = get_object_or_404(Tag, id=tag_id)
 597     return HttpResponse(tag.description)
 598
 599
 600 def download_zip(request, format, slug=None):
 601     if format in Book.ebook_formats:
 602         url = Book.zip_format(format)
 603     elif format in ('mp3', 'ogg') and slug is not None:
 604         book = get_object_or_404(Book, slug=slug)
 605         url = book.zip_audiobooks(format)
 606     else:
 607         raise Http404('No format specified for zip package')
 608     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 609
 610
 611 class CustomPDFFormView(AjaxableFormView):
 612     form_class = forms.CustomPDFForm
 613     title = ugettext_lazy('Download custom PDF')
 614     submit = ugettext_lazy('Download')
 615     honeypot = True
 616
 617     def __call__(self, *args, **kwargs):
 618         if settings.NO_CUSTOM_PDF:
 619             raise Http404('Custom PDF is disabled')
 620         return super(CustomPDFFormView, self).__call__(*args, **kwargs)
 621
 622     def form_args(self, request, obj):
 623         """Override to parse view args and give additional args to the form."""
 624         return (obj,), {}
 625
 626     def get_object(self, request, slug, *args, **kwargs):
 627         return get_object_or_404(Book, slug=slug)
 628
 629     def context_description(self, request, obj):
 630         return obj.pretty_title()
 631
 632
 633 ####
 634 # Includes
 635 ####
 636
 637
 638 @ssi_included
 639 def book_mini(request, pk, with_link=True):
 640     book = get_object_or_404(Book, pk=pk)
 641     author_str = ", ".join(tag.name for tag in book.tags.filter(category='author'))
 642     return render(request, 'catalogue/book_mini_box.html', {
 643         'book': book,
 644         'author_str': author_str,
 645         'with_link': with_link,
 646         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 647     })
 648
 649
 650 @ssi_included(get_ssi_vars=lambda pk: (lambda ipk: (
 651         ('ssify.get_csrf_token',),
 652         ('social_tags.likes_book', (ipk,)),
 653         ('social_tags.book_shelf_tags', (ipk,)),
 654     ))(ssi_expect(pk, int)))
 655 def book_short(request, pk):
 656     book = get_object_or_404(Book, pk=pk)
 657     stage_note, stage_note_url = book.stage_note()
 658     audiobooks, projects, have_oggs = get_audiobooks(book)
 659
 660     return render(request, 'catalogue/book_short.html', {
 661         'book': book,
 662         'has_audio': book.has_media('mp3'),
 663         'main_link': book.get_absolute_url(),
 664         'parents': book.parents(),
 665         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 666         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 667         'stage_note': stage_note,
 668         'stage_note_url': stage_note_url,
 669         'audiobooks': audiobooks,
 670         'have_oggs': have_oggs,
 671     })
 672
 673
 674 @ssi_included(
 675     get_ssi_vars=lambda pk: book_short.get_ssi_vars(pk) +
 676     (lambda ipk: (
 677         ('social_tags.choose_cite', [ipk]),
 678         ('catalogue_tags.choose_fragment', [ipk], {
 679             'unless': Var('social_tags.choose_cite', [ipk])}),
 680     ))(ssi_expect(pk, int)))
 681 def book_wide(request, pk):
 682     book = get_object_or_404(Book, pk=pk)
 683     stage_note, stage_note_url = book.stage_note()
 684     extra_info = book.extra_info
 685     audiobooks, projects, have_oggs = get_audiobooks(book)
 686
 687     return render(request, 'catalogue/book_wide.html', {
 688         'book': book,
 689         'has_audio': book.has_media('mp3'),
 690         'parents': book.parents(),
 691         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 692         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 693         'stage_note': stage_note,
 694         'stage_note_url': stage_note_url,
 695
 696         'main_link': reverse('book_text', args=[book.slug]) if book.html_file else None,
 697         'extra_info': extra_info,
 698         'hide_about': extra_info.get('about', '').startswith('http://wiki.wolnepodreczniki.pl'),
 699         'audiobooks': audiobooks,
 700         'have_oggs': have_oggs,
 701     })
 702
 703
 704 @ssi_included
 705 def fragment_short(request, pk):
 706     fragment = get_object_or_404(Fragment, pk=pk)
 707     return render(request, 'catalogue/fragment_short.html', {'fragment': fragment})
 708
 709
 710 @ssi_included
 711 def fragment_promo(request, pk):
 712     fragment = get_object_or_404(Fragment, pk=pk)
 713     return render(request, 'catalogue/fragment_promo.html', {'fragment': fragment})
 714
 715
 716 @ssi_included
 717 def tag_box(request, pk):
 718     tag = get_object_or_404(Tag, pk=pk)
 719     assert tag.category != 'set'
 720
 721     return render(request, 'catalogue/tag_box.html', {
 722         'tag': tag,
 723     })
 724
 725
 726 @ssi_included
 727 def collection_box(request, pk):
 728     obj = get_object_or_404(Collection, pk=pk)
 729
 730     return render(request, 'catalogue/collection_box.html', {
 731         'obj': obj,
 732     })
 733
 734
 735 def tag_catalogue(request, category):
 736     if category == 'theme':
 737         tags = Tag.objects.usage_for_model(
 738             Fragment, counts=True).filter(category='theme')
 739     else:
 740         tags = list(get_top_level_related_tags((), categories=(category,)))
 741
 742     described_tags = [tag for tag in tags if tag.description]
 743
 744     if len(described_tags) > 4:
 745         best = random.sample(described_tags, 4)
 746     else:
 747         best = described_tags
 748
 749     return render(request, 'catalogue/tag_catalogue.html', {
 750         'tags': tags,
 751         'best': best,
 752         'title': constants.CATEGORIES_NAME_PLURAL[category],
 753         'whole_category': constants.WHOLE_CATEGORY[category],
 754         'active_menu_item': 'theme' if category == 'theme' else None,
 755     })
 756
 757
 758 def collections(request):
 759     objects = Collection.objects.all()
 760
 761     if len(objects) > 3:
 762         best = random.sample(objects, 3)
 763     else:
 764         best = objects
 765
 766     return render(request, 'catalogue/collections.html', {
 767         'objects': objects,
 768         'best': best,
 769     })