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