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