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