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