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