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 tylko do audiobook_tree, które jest używane tylko w snippets/audiobook_list.html, które nie jest używane
 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     # extra_info = book.extra_info
 320
 321     return render_to_response('catalogue/player.html', {
 322         'book': book,
 323         'audiobook': '',
 324         'audiobooks': audiobooks,
 325         'projects': projects,
 326     }, context_instance=RequestContext(request))
 327
 328
 329 def book_text(request, slug):
 330     book = get_object_or_404(Book, slug=slug)
 331
 332     if not book.has_html_file():
 333         raise Http404
 334     return render_to_response('catalogue/book_text.html', {'book': book,}, context_instance=RequestContext(request))
 335
 336
 337 # ==========
 338 # = Search =
 339 # ==========
 340
 341 def _no_diacritics_regexp(query):
 342     """ returns a regexp for searching for a query without diacritics
 343
 344     should be locale-aware """
 345     names = {
 346         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',
 347         u'z': u'zźżŹŻ',
 348         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',
 349         u'ż': u'żŻ'
 350         }
 351
 352     def repl(m):
 353         l = m.group()
 354         return u"(%s)" % '|'.join(names[l])
 355
 356     return re.sub(u'[%s]' % (u''.join(names.keys())), repl, query)
 357
 358
 359 def unicode_re_escape(query):
 360     """ Unicode-friendly version of re.escape """
 361     return re.sub(r'(?u)(\W)', r'\\\1', query)
 362
 363
 364 def _word_starts_with(name, prefix):
 365     """returns a Q object getting models having `name` contain a word
 366     starting with `prefix`
 367
 368     We define word characters as alphanumeric and underscore, like in JS.
 369
 370     Works for MySQL, PostgreSQL, Oracle.
 371     For SQLite, _sqlite* version is substituted for this.
 372     """
 373     kwargs = {}
 374
 375     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 376     # can't use [[:<:]] (word start),
 377     # but we want both `xy` and `(xy` to catch `(xyz)`
 378     kwargs['%s__iregex' % name] = u"(^|[^[:alnum:]_])%s" % prefix
 379
 380     return Q(**kwargs)
 381
 382
 383 def _word_starts_with_regexp(prefix):
 384     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 385     return ur"(^|(?<=[^\wąćęłńóśźżĄĆĘŁŃÓŚŹŻ]))%s" % prefix
 386
 387
 388 def _sqlite_word_starts_with(name, prefix):
 389     """ version of _word_starts_with for SQLite
 390
 391     SQLite in Django uses Python re module
 392     """
 393     kwargs = {'%s__iregex' % name: _word_starts_with_regexp(prefix)}
 394     return Q(**kwargs)
 395
 396
 397 if hasattr(settings, 'DATABASES'):
 398     if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
 399         _word_starts_with = _sqlite_word_starts_with
 400 elif settings.DATABASE_ENGINE == 'sqlite3':
 401     _word_starts_with = _sqlite_word_starts_with
 402
 403
 404 class App:
 405     def __init__(self, name, view):
 406         self.name = name
 407         self._view = view
 408         self.lower = name.lower()
 409         self.category = 'application'
 410
 411     def view(self):
 412         return reverse(*self._view)
 413
 414 _apps = (
 415     App(u'Leśmianator', (u'lesmianator', )),
 416     )
 417
 418
 419 def _tags_starting_with(prefix, user=None):
 420     prefix = prefix.lower()
 421     # PD counter
 422     book_stubs = BookStub.objects.filter(_word_starts_with('title', prefix))
 423     authors = Author.objects.filter(_word_starts_with('name', prefix))
 424
 425     books = Book.objects.filter(_word_starts_with('title', prefix))
 426     tags = Tag.objects.filter(_word_starts_with('name', prefix))
 427     if user and user.is_authenticated():
 428         tags = tags.filter(~Q(category='set') | Q(user=user))
 429     else:
 430         tags = tags.exclude(category='set')
 431
 432     prefix_regexp = re.compile(_word_starts_with_regexp(prefix))
 433     return list(books) + list(tags) + [app for app in _apps if prefix_regexp.search(app.lower)] + list(book_stubs) + \
 434         list(authors)
 435
 436
 437 def _get_result_link(match, tag_list):
 438     if isinstance(match, Tag):
 439         return reverse('catalogue.views.tagged_object_list',
 440                        kwargs={'tags': '/'.join(tag.url_chunk for tag in tag_list + [match])})
 441     elif isinstance(match, App):
 442         return match.view()
 443     else:
 444         return match.get_absolute_url()
 445
 446
 447 def _get_result_type(match):
 448     if isinstance(match, Book) or isinstance(match, BookStub):
 449         match_type = 'book'
 450     else:
 451         match_type = match.category
 452     return match_type
 453
 454
 455 def books_starting_with(prefix):
 456     prefix = prefix.lower()
 457     return Book.objects.filter(_word_starts_with('title', prefix))
 458
 459
 460 def find_best_matches(query, user=None):
 461     """ Finds a Book, Tag, BookStub or Author best matching a query.
 462
 463     Returns a with:
 464       - zero elements when nothing is found,
 465       - one element when a best result is found,
 466       - more then one element on multiple exact matches
 467
 468     Raises a ValueError on too short a query.
 469     """
 470
 471     query = query.lower()
 472     if len(query) < 2:
 473         raise ValueError("query must have at least two characters")
 474
 475     result = tuple(_tags_starting_with(query, user))
 476     # remove pdcounter stuff
 477     book_titles = set(match.pretty_title().lower() for match in result
 478                       if isinstance(match, Book))
 479     authors = set(match.name.lower() for match in result
 480                   if isinstance(match, Tag) and match.category == 'author')
 481     result = tuple(res for res in result if not (
 482                  (isinstance(res, BookStub) and res.pretty_title().lower() in book_titles) or
 483                  (isinstance(res, Author) and res.name.lower() in authors)
 484              ))
 485
 486     exact_matches = tuple(res for res in result if res.name.lower() == query)
 487     if exact_matches:
 488         return exact_matches
 489     else:
 490         return tuple(result)[:1]
 491
 492
 493 def search(request):
 494     tags = request.GET.get('tags', '')
 495     prefix = request.GET.get('q', '')
 496
 497     try:
 498         tag_list = Tag.get_tag_list(tags)
 499     except (Tag.DoesNotExist, Tag.MultipleObjectsReturned, Tag.UrlDeprecationWarning):
 500         tag_list = []
 501
 502     try:
 503         result = find_best_matches(prefix, request.user)
 504     except ValueError:
 505         return render_to_response(
 506             'catalogue/search_too_short.html', {'tags': tag_list, 'prefix': prefix},
 507             context_instance=RequestContext(request))
 508
 509     if len(result) == 1:
 510         return HttpResponseRedirect(_get_result_link(result[0], tag_list))
 511     elif len(result) > 1:
 512         return render_to_response(
 513             'catalogue/search_multiple_hits.html',
 514             {
 515                 'tags': tag_list, 'prefix': prefix,
 516                 'results': ((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)
 517             },
 518             context_instance=RequestContext(request))
 519     else:
 520         form = PublishingSuggestForm(initial={"books": prefix + ", "})
 521         return render_to_response(
 522             'catalogue/search_no_hits.html',
 523             {'tags': tag_list, 'prefix': prefix, "pubsuggest_form": form},
 524             context_instance=RequestContext(request))
 525
 526
 527 def tags_starting_with(request):
 528     prefix = request.GET.get('q', '')
 529     # Prefix must have at least 2 characters
 530     if len(prefix) < 2:
 531         return HttpResponse('')
 532     tags_list = []
 533     result = ""
 534     for tag in _tags_starting_with(prefix, request.user):
 535         if tag.name not in tags_list:
 536             result += "\n" + tag.name
 537             tags_list.append(tag.name)
 538     return HttpResponse(result)
 539
 540
 541 def json_tags_starting_with(request, callback=None):
 542     # Callback for JSONP
 543     prefix = request.GET.get('q', '')
 544     callback = request.GET.get('callback', '')
 545     # Prefix must have at least 2 characters
 546     if len(prefix) < 2:
 547         return HttpResponse('')
 548     tags_list = []
 549     for tag in _tags_starting_with(prefix, request.user):
 550         if tag.name not in tags_list:
 551             tags_list.append(tag.name)
 552     if request.GET.get('mozhint', ''):
 553         result = [prefix, tags_list]
 554     else:
 555         result = {"matches": tags_list}
 556     response = JsonResponse(result, safe=False)
 557     if callback:
 558         response.content = callback + "(" + response.content + ");"
 559     return response
 560
 561
 562 # =========
 563 # = Admin =
 564 # =========
 565 @login_required
 566 @staff_required
 567 def import_book(request):
 568     """docstring for import_book"""
 569     book_import_form = forms.BookImportForm(request.POST, request.FILES)
 570     if book_import_form.is_valid():
 571         try:
 572             book_import_form.save()
 573         except:
 574             import sys
 575             import pprint
 576             import traceback
 577             info = sys.exc_info()
 578             exception = pprint.pformat(info[1])
 579             tb = '\n'.join(traceback.format_tb(info[2]))
 580             return HttpResponse(
 581                     _("An error occurred: %(exception)s\n\n%(tb)s") % {'exception': exception, 'tb': tb},
 582                     mimetype='text/plain')
 583         return HttpResponse(_("Book imported successfully"))
 584     else:
 585         return HttpResponse(_("Error importing file: %r") % book_import_form.errors)
 586
 587
 588 # info views for API
 589
 590 def book_info(request, book_id, lang='pl'):
 591     book = get_object_or_404(Book, id=book_id)
 592     # set language by hand
 593     translation.activate(lang)
 594     return render_to_response('catalogue/book_info.html', {'book': book}, context_instance=RequestContext(request))
 595
 596
 597 def tag_info(request, tag_id):
 598     tag = get_object_or_404(Tag, id=tag_id)
 599     return HttpResponse(tag.description)
 600
 601
 602 def download_zip(request, format, slug=None):
 603     if format in Book.ebook_formats:
 604         url = Book.zip_format(format)
 605     elif format in ('mp3', 'ogg') and slug is not None:
 606         book = get_object_or_404(Book, slug=slug)
 607         url = book.zip_audiobooks(format)
 608     else:
 609         raise Http404('No format specified for zip package')
 610     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 611
 612
 613 class CustomPDFFormView(AjaxableFormView):
 614     form_class = forms.CustomPDFForm
 615     title = ugettext_lazy('Download custom PDF')
 616     submit = ugettext_lazy('Download')
 617     honeypot = True
 618
 619     def __call__(self, *args, **kwargs):
 620         if settings.NO_CUSTOM_PDF:
 621             raise Http404('Custom PDF is disabled')
 622         return super(CustomPDFFormView, self).__call__(*args, **kwargs)
 623
 624     def form_args(self, request, obj):
 625         """Override to parse view args and give additional args to the form."""
 626         return (obj,), {}
 627
 628     def get_object(self, request, slug, *args, **kwargs):
 629         return get_object_or_404(Book, slug=slug)
 630
 631     def context_description(self, request, obj):
 632         return obj.pretty_title()
 633
 634
 635 ####
 636 # Includes
 637 ####
 638
 639
 640 @ssi_included
 641 def book_mini(request, pk, with_link=True):
 642     book = get_object_or_404(Book, pk=pk)
 643     author_str = ", ".join(tag.name for tag in book.tags.filter(category='author'))
 644     return render(request, 'catalogue/book_mini_box.html', {
 645         'book': book,
 646         'author_str': author_str,
 647         'with_link': with_link,
 648         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 649     })
 650
 651
 652 @ssi_included(get_ssi_vars=lambda pk: (lambda ipk: (
 653         ('ssify.get_csrf_token',),
 654         ('social_tags.likes_book', (ipk,)),
 655         ('social_tags.book_shelf_tags', (ipk,)),
 656     ))(ssi_expect(pk, int)))
 657 def book_short(request, pk):
 658     book = get_object_or_404(Book, pk=pk)
 659     stage_note, stage_note_url = book.stage_note()
 660     audiobooks, projects, have_oggs = get_audiobooks(book)
 661
 662     return render(request, 'catalogue/book_short.html', {
 663         'book': book,
 664         'has_audio': book.has_media('mp3'),
 665         'main_link': book.get_absolute_url(),
 666         'parents': book.parents(),
 667         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 668         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 669         'stage_note': stage_note,
 670         'stage_note_url': stage_note_url,
 671         'audiobooks': audiobooks,
 672         'have_oggs': have_oggs,
 673     })
 674
 675
 676 @ssi_included(
 677     get_ssi_vars=lambda pk: book_short.get_ssi_vars(pk) +
 678     (lambda ipk: (
 679         ('social_tags.choose_cite', [ipk]),
 680         ('catalogue_tags.choose_fragment', [ipk], {
 681             'unless': Var('social_tags.choose_cite', [ipk])}),
 682     ))(ssi_expect(pk, int)))
 683 def book_wide(request, pk):
 684     book = get_object_or_404(Book, pk=pk)
 685     stage_note, stage_note_url = book.stage_note()
 686     extra_info = book.extra_info
 687     audiobooks, projects, have_oggs = get_audiobooks(book)
 688
 689     return render(request, 'catalogue/book_wide.html', {
 690         'book': book,
 691         'has_audio': book.has_media('mp3'),
 692         'parents': book.parents(),
 693         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 694         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 695         'stage_note': stage_note,
 696         'stage_note_url': stage_note_url,
 697
 698         'main_link': reverse('book_text', args=[book.slug]) if book.html_file else None,
 699         'extra_info': extra_info,
 700         'hide_about': extra_info.get('about', '').startswith('http://wiki.wolnepodreczniki.pl'),
 701         'audiobooks': audiobooks,
 702         'have_oggs': have_oggs,
 703     })
 704
 705
 706 @ssi_included
 707 def fragment_short(request, pk):
 708     fragment = get_object_or_404(Fragment, pk=pk)
 709     return render(request, 'catalogue/fragment_short.html', {'fragment': fragment})
 710
 711
 712 @ssi_included
 713 def fragment_promo(request, pk):
 714     fragment = get_object_or_404(Fragment, pk=pk)
 715     return render(request, 'catalogue/fragment_promo.html', {'fragment': fragment})
 716
 717
 718 @ssi_included
 719 def tag_box(request, pk):
 720     tag = get_object_or_404(Tag, pk=pk)
 721     assert tag.category != 'set'
 722
 723     return render(request, 'catalogue/tag_box.html', {
 724         'tag': tag,
 725     })
 726
 727
 728 @ssi_included
 729 def collection_box(request, pk):
 730     obj = get_object_or_404(Collection, pk=pk)
 731
 732     return render(request, 'catalogue/collection_box.html', {
 733         'obj': obj,
 734     })
 735
 736
 737 def tag_catalogue(request, category):
 738     if category == 'theme':
 739         tags = Tag.objects.usage_for_model(
 740             Fragment, counts=True).filter(category='theme')
 741     else:
 742         tags = list(get_top_level_related_tags((), categories=(category,)))
 743
 744     described_tags = [tag for tag in tags if tag.description]
 745
 746     if len(described_tags) > 4:
 747         best = random.sample(described_tags, 4)
 748     else:
 749         best = described_tags
 750
 751     return render(request, 'catalogue/tag_catalogue.html', {
 752         'tags': tags,
 753         'best': best,
 754         'title': constants.CATEGORIES_NAME_PLURAL[category],
 755         'whole_category': constants.WHOLE_CATEGORY[category],
 756         'active_menu_item': 'theme' if category == 'theme' else None,
 757     })
 758
 759
 760 def collections(request):
 761     objects = Collection.objects.all()
 762
 763     if len(objects) > 3:
 764         best = random.sample(objects, 3)
 765     else:
 766         best = objects
 767
 768     return render(request, 'catalogue/collections.html', {
 769         'objects': objects,
 770         'best': best,
 771     })