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).order_by('sort_key_author', 'sort_key'),
  39         'pictures': Picture.objects.order_by('sort_key_author', 'sort_key'),
  40         'collections': Collection.objects.all(),
  41         'active_menu_item': 'all_works',
  42     })
  43
  44
  45 def book_list(request, filter=None, get_filter=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', context=None):
  48     """ generates a listing of all books, optionally filtered with a test function """
  49     if get_filter:
  50         filter = get_filter()
  51     books_by_author, orphans, books_by_parent = Book.book_list(filter)
  52     books_nav = OrderedDict()
  53     for tag in books_by_author:
  54         if books_by_author[tag]:
  55             books_nav.setdefault(tag.sort_key[0], []).append(tag)
  56     # WTF: dlaczego nie include?
  57     return render_to_response(template_name, {
  58         'rendered_nav': render_to_string(nav_template_name, {'books_nav': books_nav}),
  59         'rendered_book_list': render_to_string(list_template_name, {
  60             'books_by_author': books_by_author,
  61             'orphans': orphans,
  62             'books_by_parent': books_by_parent,
  63         })
  64     }, context_instance=RequestContext(request))
  65
  66
  67 def audiobook_list(request):
  68     books = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct().order_by(
  69         'sort_key_author', 'sort_key')
  70     books = list(books)
  71     if len(books) > 3:
  72         best = random.sample(books, 3)
  73     else:
  74         best = books
  75
  76     daisy = Book.objects.filter(media__type='daisy').distinct().order_by('sort_key_author', 'sort_key')
  77
  78     return render(request, 'catalogue/audiobook_list.html', {
  79         'books': books,
  80         'best': best,
  81         'daisy': daisy,
  82         })
  83
  84
  85 def daisy_list(request):
  86     return book_list(request, Q(media__type='daisy'),
  87                      template_name='catalogue/daisy_list.html',
  88                      )
  89
  90
  91 def collection(request, slug):
  92     coll = get_object_or_404(Collection, slug=slug)
  93     return render(request, 'catalogue/collection.html', {'collection': coll})
  94
  95
  96 def differentiate_tags(request, tags, ambiguous_slugs):
  97     beginning = '/'.join(tag.url_chunk for tag in tags)
  98     unparsed = '/'.join(ambiguous_slugs[1:])
  99     options = []
 100     for tag in Tag.objects.filter(slug=ambiguous_slugs[0]):
 101         options.append({
 102             'url_args': '/'.join((beginning, tag.url_chunk, unparsed)).strip('/'),
 103             'tags': [tag]
 104         })
 105     return render_to_response(
 106         'catalogue/differentiate_tags.html', {'tags': tags, 'options': options, 'unparsed': ambiguous_slugs[1:]},
 107         context_instance=RequestContext(request))
 108
 109
 110 # TODO: Rewrite this hellish piece of code which tries to do everything
 111 def tagged_object_list(request, tags='', list_type='books'):
 112     raw_tags = tags
 113     # preliminary tests and conditions
 114     gallery = list_type == 'gallery'
 115     audiobooks = list_type == 'audiobooks'
 116     try:
 117         tags = Tag.get_tag_list(tags)
 118     except Tag.DoesNotExist:
 119         # Perhaps the user is asking about an author in Public Domain
 120         # counter (they are not represented in tags)
 121         chunks = tags.split('/')
 122         if len(chunks) == 2 and chunks[0] == 'autor':
 123             return pdcounter_views.author_detail(request, chunks[1])
 124         else:
 125             raise Http404
 126     except Tag.MultipleObjectsReturned, e:
 127         # Ask the user to disambiguate
 128         return differentiate_tags(request, e.tags, e.ambiguous_slugs)
 129     except Tag.UrlDeprecationWarning, e:
 130         return HttpResponsePermanentRedirect(
 131             reverse('tagged_object_list', args=['/'.join(tag.url_chunk for tag in e.tags)]))
 132
 133     try:
 134         if len(tags) > settings.MAX_TAG_LIST:
 135             raise Http404
 136     except AttributeError:
 137         pass
 138
 139     # beginning of digestion
 140     theme_is_set = any(tag.category == 'theme' for tag in tags)
 141     shelf_is_set = any(tag.category == 'set' for tag in tags)
 142     only_shelf = shelf_is_set and len(tags) == 1
 143     only_my_shelf = only_shelf and request.user == tags[0].user
 144     tags_pks = [tag.pk for tag in tags]
 145
 146     if gallery and shelf_is_set:
 147         raise Http404
 148
 149     daisy = None
 150     if theme_is_set:
 151         # Only fragments (or pirctureareas) here.
 152         shelf_tags = [tag for tag in tags if tag.category == 'set']
 153         fragment_tags = [tag for tag in tags if tag.category != 'set']
 154         if gallery:
 155             fragments = PictureArea.tagged.with_all(fragment_tags)
 156         else:
 157             fragments = Fragment.tagged.with_all(fragment_tags)
 158
 159         if shelf_tags:
 160             # TODO: Pictures on shelves not supported yet.
 161             books = Book.tagged.with_all(shelf_tags).order_by()
 162             fragments = fragments.filter(Q(book__in=books) | Q(book__ancestor__in=books))
 163
 164         categories = split_tags(
 165             Tag.objects.usage_for_queryset(fragments, counts=True).exclude(pk__in=tags_pks),
 166         )
 167
 168         objects = fragments
 169     else:
 170         if gallery:
 171             # TODO: Pictures on shelves not supported yet.
 172             if tags:
 173                 objects = Picture.tagged.with_all(tags)
 174             else:
 175                 objects = Picture.objects.all()
 176             areas = PictureArea.objects.filter(picture__in=objects)
 177             categories = split_tags(
 178                 Tag.objects.usage_for_queryset(
 179                     objects, counts=True).exclude(pk__in=tags_pks),
 180                 Tag.objects.usage_for_queryset(
 181                     areas, counts=True).filter(
 182                     category__in=('theme', 'thing')).exclude(
 183                     pk__in=tags_pks),
 184             )
 185         else:
 186             if audiobooks:
 187                 all_books = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
 188                 if tags:
 189                     all_books = Book.tagged.with_all(tags, all_books)
 190                 objects = all_books
 191                 # there's never only the daisy audiobook
 192                 daisy = objects.filter(media__type='daisy').distinct().order_by('sort_key_author', 'sort_key')
 193                 related_book_tags = Tag.objects.usage_for_queryset(
 194                     objects, counts=True).exclude(
 195                     category='set').exclude(pk__in=tags_pks)
 196             else:
 197                 if tags:
 198                     all_books = Book.tagged.with_all(tags)
 199                 else:
 200                     all_books = Book.objects.filter(parent=None)
 201                 if shelf_is_set:
 202                     objects = all_books
 203                     related_book_tags = Tag.objects.usage_for_queryset(
 204                         objects, counts=True).exclude(
 205                         category='set').exclude(pk__in=tags_pks)
 206                 else:
 207                     if tags:
 208                         objects = Book.tagged_top_level(tags)
 209                     else:
 210                         objects = all_books
 211                     related_book_tags = get_top_level_related_tags(tags)
 212
 213             fragments = Fragment.objects.filter(book__in=all_books)
 214
 215             categories = split_tags(
 216                 related_book_tags,
 217                 Tag.objects.usage_for_queryset(
 218                     fragments, counts=True).filter(
 219                     category='theme').exclude(pk__in=tags_pks),
 220             )
 221         objects = objects.order_by('sort_key_author', 'sort_key')
 222
 223     objects = list(objects)
 224     if len(objects) > 3:
 225         best = random.sample(objects, 3)
 226     else:
 227         best = objects
 228
 229     if not gallery and not objects and len(tags) == 1:
 230         tag = tags[0]
 231         if tag.category in ('theme', 'thing') and (
 232                 PictureArea.tagged.with_any([tag]).exists() or
 233                 Picture.tagged.with_any([tag]).exists()):
 234             return redirect('tagged_object_list_gallery', raw_tags)
 235
 236     # this is becoming more and more hacky
 237     if list_type == 'books' and not tags:
 238         last_published = Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:20]
 239     else:
 240         last_published = None
 241
 242     return render_to_response(
 243         'catalogue/tagged_object_list.html',
 244         {
 245             'object_list': objects,
 246             'categories': categories,
 247             'only_shelf': only_shelf,
 248             'only_my_shelf': only_my_shelf,
 249             'formats_form': forms.DownloadFormatsForm(),
 250             'tags': tags,
 251             'tag_ids': tags_pks,
 252             'theme_is_set': theme_is_set,
 253             'best': best,
 254             'list_type': list_type,
 255             'daisy': daisy,
 256             'last_published': last_published,
 257             'active_menu_item': 'theme' if theme_is_set else list_type,
 258         },
 259         context_instance=RequestContext(request))
 260
 261
 262 def book_fragments(request, slug, theme_slug):
 263     book = get_object_or_404(Book, slug=slug)
 264     theme = get_object_or_404(Tag, slug=theme_slug, category='theme')
 265     fragments = Fragment.tagged.with_all([theme]).filter(
 266         Q(book=book) | Q(book__ancestor=book))
 267
 268     return render_to_response('catalogue/book_fragments.html', {
 269         'book': book,
 270         'theme': theme,
 271         'fragments': fragments,
 272     }, context_instance=RequestContext(request))
 273
 274
 275 def book_detail(request, slug):
 276     try:
 277         book = Book.objects.get(slug=slug)
 278     except Book.DoesNotExist:
 279         return pdcounter_views.book_stub_detail(request, slug)
 280
 281     return render_to_response('catalogue/book_detail.html', {
 282         'book': book,
 283         'tags': book.tags.exclude(category__in=('set', 'theme')),
 284         'book_children': book.children.all().order_by('parent_number', 'sort_key'),
 285     }, context_instance=RequestContext(request))
 286
 287
 288 def get_audiobooks(book):
 289     ogg_files = {}
 290     for m in book.media.filter(type='ogg').order_by().iterator():
 291         ogg_files[m.name] = m
 292
 293     audiobooks = []
 294     have_oggs = True
 295     projects = set()
 296     for mp3 in book.media.filter(type='mp3').iterator():
 297         # ogg files are always from the same project
 298         meta = mp3.extra_info
 299         project = meta.get('project')
 300         if not project:
 301             # temporary fallback
 302             project = u'CzytamySłuchając'
 303
 304         projects.add((project, meta.get('funded_by', '')))
 305
 306         media = {'mp3': mp3}
 307
 308         ogg = ogg_files.get(mp3.name)
 309         if ogg:
 310             media['ogg'] = ogg
 311         else:
 312             have_oggs = False
 313         audiobooks.append(media)
 314
 315     projects = sorted(projects)
 316     return audiobooks, projects, have_oggs
 317
 318
 319 # używane tylko do audiobook_tree, które jest używane tylko w snippets/audiobook_list.html, które nie jest używane
 320 def player(request, slug):
 321     book = get_object_or_404(Book, slug=slug)
 322     if not book.has_media('mp3'):
 323         raise Http404
 324
 325     audiobooks, projects, have_oggs = get_audiobooks(book)
 326
 327     # extra_info = book.extra_info
 328
 329     return render_to_response('catalogue/player.html', {
 330         'book': book,
 331         'audiobook': '',
 332         'audiobooks': audiobooks,
 333         'projects': projects,
 334     }, context_instance=RequestContext(request))
 335
 336
 337 def book_text(request, slug):
 338     book = get_object_or_404(Book, slug=slug)
 339
 340     if not book.has_html_file():
 341         raise Http404
 342     return render_to_response('catalogue/book_text.html', {'book': book,}, context_instance=RequestContext(request))
 343
 344
 345 # ==========
 346 # = Search =
 347 # ==========
 348
 349 def _no_diacritics_regexp(query):
 350     """ returns a regexp for searching for a query without diacritics
 351
 352     should be locale-aware """
 353     names = {
 354         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',
 355         u'z': u'zźżŹŻ',
 356         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',
 357         u'ż': u'żŻ'
 358         }
 359
 360     def repl(m):
 361         l = m.group()
 362         return u"(%s)" % '|'.join(names[l])
 363
 364     return re.sub(u'[%s]' % (u''.join(names.keys())), repl, query)
 365
 366
 367 def unicode_re_escape(query):
 368     """ Unicode-friendly version of re.escape """
 369     return re.sub(r'(?u)(\W)', r'\\\1', query)
 370
 371
 372 def _word_starts_with(name, prefix):
 373     """returns a Q object getting models having `name` contain a word
 374     starting with `prefix`
 375
 376     We define word characters as alphanumeric and underscore, like in JS.
 377
 378     Works for MySQL, PostgreSQL, Oracle.
 379     For SQLite, _sqlite* version is substituted for this.
 380     """
 381     kwargs = {}
 382
 383     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 384     # can't use [[:<:]] (word start),
 385     # but we want both `xy` and `(xy` to catch `(xyz)`
 386     kwargs['%s__iregex' % name] = u"(^|[^[:alnum:]_])%s" % prefix
 387
 388     return Q(**kwargs)
 389
 390
 391 def _word_starts_with_regexp(prefix):
 392     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 393     return ur"(^|(?<=[^\wąćęłńóśźżĄĆĘŁŃÓŚŹŻ]))%s" % prefix
 394
 395
 396 def _sqlite_word_starts_with(name, prefix):
 397     """ version of _word_starts_with for SQLite
 398
 399     SQLite in Django uses Python re module
 400     """
 401     kwargs = {'%s__iregex' % name: _word_starts_with_regexp(prefix)}
 402     return Q(**kwargs)
 403
 404
 405 if hasattr(settings, 'DATABASES'):
 406     if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
 407         _word_starts_with = _sqlite_word_starts_with
 408 elif settings.DATABASE_ENGINE == 'sqlite3':
 409     _word_starts_with = _sqlite_word_starts_with
 410
 411
 412 class App:
 413     def __init__(self, name, view):
 414         self.name = name
 415         self._view = view
 416         self.lower = name.lower()
 417         self.category = 'application'
 418
 419     def view(self):
 420         return reverse(*self._view)
 421
 422 _apps = (
 423     App(u'Leśmianator', (u'lesmianator', )),
 424     )
 425
 426
 427 def _tags_starting_with(prefix, user=None):
 428     prefix = prefix.lower()
 429     # PD counter
 430     book_stubs = BookStub.objects.filter(_word_starts_with('title', prefix))
 431     authors = Author.objects.filter(_word_starts_with('name', prefix))
 432
 433     books = Book.objects.filter(_word_starts_with('title', prefix))
 434     tags = Tag.objects.filter(_word_starts_with('name', prefix))
 435     if user and user.is_authenticated():
 436         tags = tags.filter(~Q(category='set') | Q(user=user))
 437     else:
 438         tags = tags.exclude(category='set')
 439
 440     prefix_regexp = re.compile(_word_starts_with_regexp(prefix))
 441     return list(books) + list(tags) + [app for app in _apps if prefix_regexp.search(app.lower)] + list(book_stubs) + \
 442         list(authors)
 443
 444
 445 def _get_result_link(match, tag_list):
 446     if isinstance(match, Tag):
 447         return reverse('catalogue.views.tagged_object_list',
 448                        kwargs={'tags': '/'.join(tag.url_chunk for tag in tag_list + [match])})
 449     elif isinstance(match, App):
 450         return match.view()
 451     else:
 452         return match.get_absolute_url()
 453
 454
 455 def _get_result_type(match):
 456     if isinstance(match, Book) or isinstance(match, BookStub):
 457         match_type = 'book'
 458     else:
 459         match_type = match.category
 460     return match_type
 461
 462
 463 def books_starting_with(prefix):
 464     prefix = prefix.lower()
 465     return Book.objects.filter(_word_starts_with('title', prefix))
 466
 467
 468 def find_best_matches(query, user=None):
 469     """ Finds a Book, Tag, BookStub or Author best matching a query.
 470
 471     Returns a with:
 472       - zero elements when nothing is found,
 473       - one element when a best result is found,
 474       - more then one element on multiple exact matches
 475
 476     Raises a ValueError on too short a query.
 477     """
 478
 479     query = query.lower()
 480     if len(query) < 2:
 481         raise ValueError("query must have at least two characters")
 482
 483     result = tuple(_tags_starting_with(query, user))
 484     # remove pdcounter stuff
 485     book_titles = set(match.pretty_title().lower() for match in result
 486                       if isinstance(match, Book))
 487     authors = set(match.name.lower() for match in result
 488                   if isinstance(match, Tag) and match.category == 'author')
 489     result = tuple(res for res in result if not (
 490                  (isinstance(res, BookStub) and res.pretty_title().lower() in book_titles) or
 491                  (isinstance(res, Author) and res.name.lower() in authors)
 492              ))
 493
 494     exact_matches = tuple(res for res in result if res.name.lower() == query)
 495     if exact_matches:
 496         return exact_matches
 497     else:
 498         return tuple(result)[:1]
 499
 500
 501 def search(request):
 502     tags = request.GET.get('tags', '')
 503     prefix = request.GET.get('q', '')
 504
 505     try:
 506         tag_list = Tag.get_tag_list(tags)
 507     except (Tag.DoesNotExist, Tag.MultipleObjectsReturned, Tag.UrlDeprecationWarning):
 508         tag_list = []
 509
 510     try:
 511         result = find_best_matches(prefix, request.user)
 512     except ValueError:
 513         return render_to_response(
 514             'catalogue/search_too_short.html', {'tags': tag_list, 'prefix': prefix},
 515             context_instance=RequestContext(request))
 516
 517     if len(result) == 1:
 518         return HttpResponseRedirect(_get_result_link(result[0], tag_list))
 519     elif len(result) > 1:
 520         return render_to_response(
 521             'catalogue/search_multiple_hits.html',
 522             {
 523                 'tags': tag_list, 'prefix': prefix,
 524                 'results': ((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)
 525             },
 526             context_instance=RequestContext(request))
 527     else:
 528         form = PublishingSuggestForm(initial={"books": prefix + ", "})
 529         return render_to_response(
 530             'catalogue/search_no_hits.html',
 531             {'tags': tag_list, 'prefix': prefix, "pubsuggest_form": form},
 532             context_instance=RequestContext(request))
 533
 534
 535 def tags_starting_with(request):
 536     prefix = request.GET.get('q', '')
 537     # Prefix must have at least 2 characters
 538     if len(prefix) < 2:
 539         return HttpResponse('')
 540     tags_list = []
 541     result = ""
 542     for tag in _tags_starting_with(prefix, request.user):
 543         if tag.name not in tags_list:
 544             result += "\n" + tag.name
 545             tags_list.append(tag.name)
 546     return HttpResponse(result)
 547
 548
 549 def json_tags_starting_with(request, callback=None):
 550     # Callback for JSONP
 551     prefix = request.GET.get('q', '')
 552     callback = request.GET.get('callback', '')
 553     # Prefix must have at least 2 characters
 554     if len(prefix) < 2:
 555         return HttpResponse('')
 556     tags_list = []
 557     for tag in _tags_starting_with(prefix, request.user):
 558         if tag.name not in tags_list:
 559             tags_list.append(tag.name)
 560     if request.GET.get('mozhint', ''):
 561         result = [prefix, tags_list]
 562     else:
 563         result = {"matches": tags_list}
 564     response = JsonResponse(result, safe=False)
 565     if callback:
 566         response.content = callback + "(" + response.content + ");"
 567     return response
 568
 569
 570 # =========
 571 # = Admin =
 572 # =========
 573 @login_required
 574 @staff_required
 575 def import_book(request):
 576     """docstring for import_book"""
 577     book_import_form = forms.BookImportForm(request.POST, request.FILES)
 578     if book_import_form.is_valid():
 579         try:
 580             book_import_form.save()
 581         except:
 582             import sys
 583             import pprint
 584             import traceback
 585             info = sys.exc_info()
 586             exception = pprint.pformat(info[1])
 587             tb = '\n'.join(traceback.format_tb(info[2]))
 588             return HttpResponse(
 589                     _("An error occurred: %(exception)s\n\n%(tb)s") % {'exception': exception, 'tb': tb},
 590                     mimetype='text/plain')
 591         return HttpResponse(_("Book imported successfully"))
 592     else:
 593         return HttpResponse(_("Error importing file: %r") % book_import_form.errors)
 594
 595
 596 # info views for API
 597
 598 def book_info(request, book_id, lang='pl'):
 599     book = get_object_or_404(Book, id=book_id)
 600     # set language by hand
 601     translation.activate(lang)
 602     return render_to_response('catalogue/book_info.html', {'book': book}, context_instance=RequestContext(request))
 603
 604
 605 def tag_info(request, tag_id):
 606     tag = get_object_or_404(Tag, id=tag_id)
 607     return HttpResponse(tag.description)
 608
 609
 610 def download_zip(request, format, slug=None):
 611     if format in Book.ebook_formats:
 612         url = Book.zip_format(format)
 613     elif format in ('mp3', 'ogg') and slug is not None:
 614         book = get_object_or_404(Book, slug=slug)
 615         url = book.zip_audiobooks(format)
 616     else:
 617         raise Http404('No format specified for zip package')
 618     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 619
 620
 621 class CustomPDFFormView(AjaxableFormView):
 622     form_class = forms.CustomPDFForm
 623     title = ugettext_lazy('Download custom PDF')
 624     submit = ugettext_lazy('Download')
 625     honeypot = True
 626
 627     def __call__(self, *args, **kwargs):
 628         if settings.NO_CUSTOM_PDF:
 629             raise Http404('Custom PDF is disabled')
 630         return super(CustomPDFFormView, self).__call__(*args, **kwargs)
 631
 632     def form_args(self, request, obj):
 633         """Override to parse view args and give additional args to the form."""
 634         return (obj,), {}
 635
 636     def get_object(self, request, slug, *args, **kwargs):
 637         return get_object_or_404(Book, slug=slug)
 638
 639     def context_description(self, request, obj):
 640         return obj.pretty_title()
 641
 642
 643 ####
 644 # Includes
 645 ####
 646
 647
 648 @ssi_included
 649 def book_mini(request, pk, with_link=True):
 650     book = get_object_or_404(Book, pk=pk)
 651     author_str = ", ".join(tag.name for tag in book.tags.filter(category='author'))
 652     return render(request, 'catalogue/book_mini_box.html', {
 653         'book': book,
 654         'author_str': author_str,
 655         'with_link': with_link,
 656         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 657     })
 658
 659
 660 @ssi_included(get_ssi_vars=lambda pk: (lambda ipk: (
 661         ('ssify.get_csrf_token',),
 662         ('social_tags.likes_book', (ipk,)),
 663         ('social_tags.book_shelf_tags', (ipk,)),
 664     ))(ssi_expect(pk, int)))
 665 def book_short(request, pk):
 666     book = get_object_or_404(Book, pk=pk)
 667     stage_note, stage_note_url = book.stage_note()
 668     audiobooks, projects, have_oggs = get_audiobooks(book)
 669
 670     return render(request, 'catalogue/book_short.html', {
 671         'book': book,
 672         'has_audio': book.has_media('mp3'),
 673         'main_link': book.get_absolute_url(),
 674         'parents': book.parents(),
 675         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 676         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 677         'stage_note': stage_note,
 678         'stage_note_url': stage_note_url,
 679         'audiobooks': audiobooks,
 680         'have_oggs': have_oggs,
 681     })
 682
 683
 684 @ssi_included(
 685     get_ssi_vars=lambda pk: book_short.get_ssi_vars(pk) +
 686     (lambda ipk: (
 687         ('social_tags.choose_cite', [ipk]),
 688         ('catalogue_tags.choose_fragment', [ipk], {
 689             'unless': Var('social_tags.choose_cite', [ipk])}),
 690     ))(ssi_expect(pk, int)))
 691 def book_wide(request, pk):
 692     book = get_object_or_404(Book, pk=pk)
 693     stage_note, stage_note_url = book.stage_note()
 694     extra_info = book.extra_info
 695     audiobooks, projects, have_oggs = get_audiobooks(book)
 696
 697     return render(request, 'catalogue/book_wide.html', {
 698         'book': book,
 699         'has_audio': book.has_media('mp3'),
 700         'parents': book.parents(),
 701         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 702         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 703         'stage_note': stage_note,
 704         'stage_note_url': stage_note_url,
 705
 706         'main_link': reverse('book_text', args=[book.slug]) if book.html_file else None,
 707         'extra_info': extra_info,
 708         'hide_about': extra_info.get('about', '').startswith('http://wiki.wolnepodreczniki.pl'),
 709         'audiobooks': audiobooks,
 710         'have_oggs': have_oggs,
 711     })
 712
 713
 714 @ssi_included
 715 def fragment_short(request, pk):
 716     fragment = get_object_or_404(Fragment, pk=pk)
 717     return render(request, 'catalogue/fragment_short.html', {'fragment': fragment})
 718
 719
 720 @ssi_included
 721 def fragment_promo(request, pk):
 722     fragment = get_object_or_404(Fragment, pk=pk)
 723     return render(request, 'catalogue/fragment_promo.html', {'fragment': fragment})
 724
 725
 726 @ssi_included
 727 def tag_box(request, pk):
 728     tag = get_object_or_404(Tag, pk=pk)
 729     assert tag.category != 'set'
 730
 731     return render(request, 'catalogue/tag_box.html', {
 732         'tag': tag,
 733     })
 734
 735
 736 @ssi_included
 737 def collection_box(request, pk):
 738     obj = get_object_or_404(Collection, pk=pk)
 739
 740     return render(request, 'catalogue/collection_box.html', {
 741         'obj': obj,
 742     })
 743
 744
 745 def tag_catalogue(request, category):
 746     if category == 'theme':
 747         tags = Tag.objects.usage_for_model(
 748             Fragment, counts=True).filter(category='theme')
 749     else:
 750         tags = list(get_top_level_related_tags((), categories=(category,)))
 751
 752     described_tags = [tag for tag in tags if tag.description]
 753
 754     if len(described_tags) > 4:
 755         best = random.sample(described_tags, 4)
 756     else:
 757         best = described_tags
 758
 759     return render(request, 'catalogue/tag_catalogue.html', {
 760         'tags': tags,
 761         'best': best,
 762         'title': constants.CATEGORIES_NAME_PLURAL[category],
 763         'whole_category': constants.WHOLE_CATEGORY[category],
 764         'active_menu_item': 'theme' if category == 'theme' else None,
 765     })
 766
 767
 768 def collections(request):
 769     objects = Collection.objects.all()
 770
 771     if len(objects) > 3:
 772         best = random.sample(objects, 3)
 773     else:
 774         best = objects
 775
 776     return render(request, 'catalogue/collections.html', {
 777         'objects': objects,
 778         'best': best,
 779     })