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.models import BookStub, Author
  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 Var
  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.models import Book, Collection, Tag, Fragment
  31 from catalogue.utils import split_tags
  32
  33 staff_required = user_passes_test(lambda user: user.is_staff)
  34
  35
  36 def catalogue(request):
  37     return render(request, 'catalogue/catalogue.html', {
  38         'books': Book.objects.filter(parent=None),
  39         'pictures': Picture.objects.all(),
  40         'collections': Collection.objects.all(),
  41         'active_menu_item': 'all_works',
  42     })
  43
  44
  45 def book_list(request, filters=None, template_name='catalogue/book_list.html',
  46               nav_template_name='catalogue/snippets/book_list_nav.html',
  47               list_template_name='catalogue/snippets/book_list.html'):
  48     """ generates a listing of all books, optionally filtered """
  49     books_by_author, orphans, books_by_parent = Book.book_list(filters)
  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     # WTF: dlaczego nie include?
  55     return render_to_response(template_name, {
  56         'rendered_nav': render_to_string(nav_template_name, {'books_nav': books_nav}),
  57         'rendered_book_list': render_to_string(list_template_name, {
  58             'books_by_author': books_by_author,
  59             'orphans': orphans,
  60             'books_by_parent': books_by_parent,
  61         })
  62     }, context_instance=RequestContext(request))
  63
  64
  65 def daisy_list(request):
  66     return book_list(request, Q(media__type='daisy'), template_name='catalogue/daisy_list.html')
  67
  68
  69 def collection(request, slug):
  70     coll = get_object_or_404(Collection, slug=slug)
  71     return render(request, 'catalogue/collection.html', {'collection': coll})
  72
  73
  74 def differentiate_tags(request, tags, ambiguous_slugs):
  75     beginning = '/'.join(tag.url_chunk for tag in tags)
  76     unparsed = '/'.join(ambiguous_slugs[1:])
  77     options = []
  78     for tag in Tag.objects.filter(slug=ambiguous_slugs[0]):
  79         options.append({
  80             'url_args': '/'.join((beginning, tag.url_chunk, unparsed)).strip('/'),
  81             'tags': [tag]
  82         })
  83     return render_to_response(
  84         'catalogue/differentiate_tags.html', {'tags': tags, 'options': options, 'unparsed': ambiguous_slugs[1:]},
  85         context_instance=RequestContext(request))
  86
  87
  88 def object_list(request, objects, fragments=None, related_tags=None, tags=None, list_type='books', extra=None):
  89     if not tags:
  90         tags = []
  91     tag_ids = [tag.pk for tag in tags]
  92
  93     related_tag_lists = []
  94     if related_tags:
  95         related_tag_lists.append(related_tags)
  96     else:
  97         related_tag_lists.append(
  98             Tag.objects.usage_for_queryset(objects, counts=True).exclude(category='set').exclude(pk__in=tag_ids))
  99     if not (extra and extra.get('theme_is_set')):
 100         if fragments is None:
 101             if list_type == 'gallery':
 102                 fragments = PictureArea.objects.filter(picture__in=objects)
 103             else:
 104                 fragments = Fragment.objects.filter(book__in=objects)
 105         related_tag_lists.append(
 106             Tag.objects.usage_for_queryset(fragments, counts=True).filter(category='theme').exclude(pk__in=tag_ids))
 107
 108     categories = split_tags(*related_tag_lists)
 109
 110     objects = list(objects)
 111     if len(objects) > 3:
 112         best = random.sample(objects, 3)
 113     else:
 114         best = objects
 115
 116     result = {
 117         'object_list': objects,
 118         'categories': categories,
 119         'list_type': list_type,
 120         'tags': tags,
 121
 122         'formats_form': forms.DownloadFormatsForm(),
 123         'best': best,
 124         'active_menu_item': list_type,
 125     }
 126     if extra:
 127         result.update(extra)
 128     return render_to_response(
 129         'catalogue/tagged_object_list.html', result,
 130         context_instance=RequestContext(request))
 131
 132
 133 def literature(request):
 134     books = Book.objects.filter(parent=None)
 135
 136     # last_published = Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:20]
 137     # most_popular = Book.objects.exclude(cover_thumb='')\
 138     #                    .order_by('-popularity__count', 'sort_key_author', 'sort_key')[:20]
 139     return object_list(request, books, related_tags=get_top_level_related_tags([]))
 140     # extra={
 141     #     'last_published': last_published,
 142     #     'most_popular': most_popular,
 143     # })
 144
 145
 146 def gallery(request):
 147     return object_list(request, Picture.objects.all(), list_type='gallery')
 148
 149
 150 def audiobooks(request):
 151     audiobooks = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
 152     return object_list(request, audiobooks, list_type='audiobooks', extra={
 153         'daisy': Book.objects.filter(media__type='daisy').distinct(),
 154     })
 155
 156
 157 class ResponseInstead(Exception):
 158     def __init__(self, response):
 159         super(ResponseInstead, self).__init__()
 160         self.response = response
 161
 162
 163 def analyse_tags(request, tag_str):
 164     try:
 165         tags = Tag.get_tag_list(tag_str)
 166     except Tag.DoesNotExist:
 167         # Perhaps the user is asking about an author in Public Domain
 168         # counter (they are not represented in tags)
 169         chunks = tag_str.split('/')
 170         if len(chunks) == 2 and chunks[0] == 'autor':
 171             raise ResponseInstead(pdcounter_views.author_detail(request, chunks[1]))
 172         else:
 173             raise Http404
 174     except Tag.MultipleObjectsReturned, e:
 175         # Ask the user to disambiguate
 176         raise ResponseInstead(differentiate_tags(request, e.tags, e.ambiguous_slugs))
 177     except Tag.UrlDeprecationWarning, e:
 178         raise ResponseInstead(HttpResponsePermanentRedirect(
 179             reverse('tagged_object_list', args=['/'.join(tag.url_chunk for tag in e.tags)])))
 180
 181     try:
 182         if len(tags) > settings.MAX_TAG_LIST:
 183             raise Http404
 184     except AttributeError:
 185         pass
 186
 187     return tags
 188
 189
 190 def theme_list(request, tags, list_type):
 191     shelf_tags = [tag for tag in tags if tag.category == 'set']
 192     fragment_tags = [tag for tag in tags if tag.category != 'set']
 193     if list_type == 'gallery':
 194         fragments = PictureArea.tagged.with_all(fragment_tags)
 195     else:
 196         fragments = Fragment.tagged.with_all(fragment_tags)
 197
 198     if shelf_tags:
 199         # TODO: Pictures on shelves not supported yet.
 200         books = Book.tagged.with_all(shelf_tags).order_by()
 201         fragments = fragments.filter(Q(book__in=books) | Q(book__ancestor__in=books))
 202
 203     if not fragments and len(tags) == 1 and list_type == 'books':
 204         tag = tags[0]
 205         if tag.category == 'theme' and (
 206                 PictureArea.tagged.with_any([tag]).exists() or
 207                 Picture.tagged.with_any([tag]).exists()):
 208             return redirect('tagged_object_list_gallery', '/'.join(tag.url_chunk for tag in tags))
 209
 210     return object_list(request, fragments, tags=tags, list_type=list_type, extra={
 211         'theme_is_set': True,
 212         'active_menu_item': 'theme',
 213     })
 214
 215
 216 def tagged_object_list(request, tags, list_type):
 217     try:
 218         tags = analyse_tags(request, tags)
 219     except ResponseInstead as e:
 220         return e.response
 221
 222     if list_type == 'gallery' and any(tag.category == 'set' for tag in tags):
 223         raise Http404
 224
 225     if any(tag.category in ('theme', 'thing') for tag in tags):
 226         return theme_list(request, tags, list_type=list_type)
 227
 228     if list_type == 'books':
 229         books = Book.tagged.with_all(tags)
 230
 231         if any(tag.category == 'set' for tag in tags):
 232             params = {'objects': books}
 233         else:
 234             params = {
 235                 'objects': Book.tagged_top_level(tags),
 236                 'fragments': Fragment.objects.filter(book__in=books),
 237                 'related_tags': get_top_level_related_tags(tags),
 238             }
 239     elif list_type == 'gallery':
 240         params = {'objects': Picture.tagged.with_all(tags)}
 241     elif list_type == 'audiobooks':
 242         audiobooks = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
 243         params = {
 244             'objects': Book.tagged.with_all(tags, audiobooks),
 245             'extra': {
 246                 'daisy': Book.tagged.with_all(tags, audiobooks.filter(media__type='daisy').distinct()),
 247             }
 248         }
 249     else:
 250         raise Http404
 251
 252     return object_list(request, tags=tags, list_type=list_type, **params)
 253
 254
 255 def book_fragments(request, slug, theme_slug):
 256     book = get_object_or_404(Book, slug=slug)
 257     theme = get_object_or_404(Tag, slug=theme_slug, category='theme')
 258     fragments = Fragment.tagged.with_all([theme]).filter(
 259         Q(book=book) | Q(book__ancestor=book))
 260
 261     return render_to_response('catalogue/book_fragments.html', {
 262         'book': book,
 263         'theme': theme,
 264         'fragments': fragments,
 265         'active_menu_item': 'books',
 266     }, context_instance=RequestContext(request))
 267
 268
 269 def book_detail(request, slug):
 270     try:
 271         book = Book.objects.get(slug=slug)
 272     except Book.DoesNotExist:
 273         return pdcounter_views.book_stub_detail(request, slug)
 274
 275     return render_to_response('catalogue/book_detail.html', {
 276         'book': book,
 277         'tags': book.tags.exclude(category__in=('set', 'theme')),
 278         'book_children': book.children.all().order_by('parent_number', 'sort_key'),
 279         'active_menu_item': 'books',
 280     }, context_instance=RequestContext(request))
 281
 282
 283 def get_audiobooks(book):
 284     ogg_files = {}
 285     for m in book.media.filter(type='ogg').order_by().iterator():
 286         ogg_files[m.name] = m
 287
 288     audiobooks = []
 289     have_oggs = True
 290     projects = set()
 291     for mp3 in book.media.filter(type='mp3').iterator():
 292         # ogg files are always from the same project
 293         meta = mp3.extra_info
 294         project = meta.get('project')
 295         if not project:
 296             # temporary fallback
 297             project = u'CzytamySłuchając'
 298
 299         projects.add((project, meta.get('funded_by', '')))
 300
 301         media = {'mp3': mp3}
 302
 303         ogg = ogg_files.get(mp3.name)
 304         if ogg:
 305             media['ogg'] = ogg
 306         else:
 307             have_oggs = False
 308         audiobooks.append(media)
 309
 310     projects = sorted(projects)
 311     return audiobooks, projects, have_oggs
 312
 313
 314 # używane w publicznym interfejsie
 315 def player(request, slug):
 316     book = get_object_or_404(Book, slug=slug)
 317     if not book.has_media('mp3'):
 318         raise Http404
 319
 320     audiobooks, projects, have_oggs = get_audiobooks(book)
 321
 322     return render_to_response('catalogue/player.html', {
 323         'book': book,
 324         'audiobook': '',
 325         'audiobooks': audiobooks,
 326         'projects': projects,
 327     }, context_instance=RequestContext(request))
 328
 329
 330 def book_text(request, slug):
 331     book = get_object_or_404(Book, slug=slug)
 332
 333     if not book.has_html_file():
 334         raise Http404
 335     return render_to_response('catalogue/book_text.html', {'book': book}, context_instance=RequestContext(request))
 336
 337
 338 # ==========
 339 # = Search =
 340 # ==========
 341
 342 def _no_diacritics_regexp(query):
 343     """ returns a regexp for searching for a query without diacritics
 344
 345     should be locale-aware """
 346     names = {
 347         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',
 348         u'z': u'zźżŹŻ',
 349         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',
 350         u'ż': u'żŻ'
 351         }
 352
 353     def repl(m):
 354         l = m.group()
 355         return u"(?:%s)" % '|'.join(names[l])
 356
 357     return re.sub(u'[%s]' % (u''.join(names.keys())), repl, query)
 358
 359
 360 def unicode_re_escape(query):
 361     """ Unicode-friendly version of re.escape """
 362     return re.sub(r'(?u)(\W)', r'\\\1', query)
 363
 364
 365 def _word_starts_with(name, prefix):
 366     """returns a Q object getting models having `name` contain a word
 367     starting with `prefix`
 368
 369     We define word characters as alphanumeric and underscore, like in JS.
 370
 371     Works for MySQL, PostgreSQL, Oracle.
 372     For SQLite, _sqlite* version is substituted for this.
 373     """
 374     kwargs = {}
 375
 376     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 377     # can't use [[:<:]] (word start),
 378     # but we want both `xy` and `(xy` to catch `(xyz)`
 379     kwargs['%s__iregex' % name] = u"(^|[^[:alnum:]_])%s" % prefix
 380
 381     return Q(**kwargs)
 382
 383
 384 def _word_starts_with_regexp(prefix):
 385     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 386     return ur"(^|(?<=[^\wąćęłńóśźżĄĆĘŁŃÓŚŹŻ]))%s" % prefix
 387
 388
 389 def _sqlite_word_starts_with(name, prefix):
 390     """ version of _word_starts_with for SQLite
 391
 392     SQLite in Django uses Python re module
 393     """
 394     kwargs = {'%s__iregex' % name: _word_starts_with_regexp(prefix)}
 395     return Q(**kwargs)
 396
 397
 398 if hasattr(settings, 'DATABASES'):
 399     if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
 400         _word_starts_with = _sqlite_word_starts_with
 401 elif settings.DATABASE_ENGINE == 'sqlite3':
 402     _word_starts_with = _sqlite_word_starts_with
 403
 404
 405 class App:
 406     def __init__(self, name, view):
 407         self.name = name
 408         self._view = view
 409         self.lower = name.lower()
 410         self.category = 'application'
 411
 412     def view(self):
 413         return reverse(*self._view)
 414
 415 _apps = (
 416     App(u'Leśmianator', (u'lesmianator', )),
 417     )
 418
 419
 420 def _tags_starting_with(prefix, user=None):
 421     prefix = prefix.lower()
 422     # PD counter
 423     book_stubs = BookStub.objects.filter(_word_starts_with('title', prefix))
 424     authors = Author.objects.filter(_word_starts_with('name', prefix))
 425
 426     books = Book.objects.filter(_word_starts_with('title', prefix))
 427     tags = Tag.objects.filter(_word_starts_with('name', prefix))
 428     if user and user.is_authenticated():
 429         tags = tags.filter(~Q(category='set') | Q(user=user))
 430     else:
 431         tags = tags.exclude(category='set')
 432
 433     prefix_regexp = re.compile(_word_starts_with_regexp(prefix))
 434     return list(books) + list(tags) + [app for app in _apps if prefix_regexp.search(app.lower)] + list(book_stubs) + \
 435         list(authors)
 436
 437
 438 def _get_result_link(match, tag_list):
 439     if isinstance(match, Tag):
 440         return reverse('catalogue.views.tagged_object_list',
 441                        kwargs={'tags': '/'.join(tag.url_chunk for tag in tag_list + [match])})
 442     elif isinstance(match, App):
 443         return match.view()
 444     else:
 445         return match.get_absolute_url()
 446
 447
 448 def _get_result_type(match):
 449     if isinstance(match, Book) or isinstance(match, BookStub):
 450         match_type = 'book'
 451     else:
 452         match_type = match.category
 453     return match_type
 454
 455
 456 def books_starting_with(prefix):
 457     prefix = prefix.lower()
 458     return Book.objects.filter(_word_starts_with('title', prefix))
 459
 460
 461 def find_best_matches(query, user=None):
 462     """ Finds a Book, Tag, BookStub or Author best matching a query.
 463
 464     Returns a with:
 465       - zero elements when nothing is found,
 466       - one element when a best result is found,
 467       - more then one element on multiple exact matches
 468
 469     Raises a ValueError on too short a query.
 470     """
 471
 472     query = query.lower()
 473     if len(query) < 2:
 474         raise ValueError("query must have at least two characters")
 475
 476     result = tuple(_tags_starting_with(query, user))
 477     # remove pdcounter stuff
 478     book_titles = set(match.pretty_title().lower() for match in result
 479                       if isinstance(match, Book))
 480     authors = set(match.name.lower() for match in result
 481                   if isinstance(match, Tag) and match.category == 'author')
 482     result = tuple(res for res in result if not (
 483                  (isinstance(res, BookStub) and res.pretty_title().lower() in book_titles) or
 484                  (isinstance(res, Author) and res.name.lower() in authors)
 485              ))
 486
 487     exact_matches = tuple(res for res in result if res.name.lower() == query)
 488     if exact_matches:
 489         return exact_matches
 490     else:
 491         return tuple(result)[:1]
 492
 493
 494 def search(request):
 495     tags = request.GET.get('tags', '')
 496     prefix = request.GET.get('q', '')
 497
 498     try:
 499         tag_list = Tag.get_tag_list(tags)
 500     except (Tag.DoesNotExist, Tag.MultipleObjectsReturned, Tag.UrlDeprecationWarning):
 501         tag_list = []
 502
 503     try:
 504         result = find_best_matches(prefix, request.user)
 505     except ValueError:
 506         return render_to_response(
 507             'catalogue/search_too_short.html', {'tags': tag_list, 'prefix': prefix},
 508             context_instance=RequestContext(request))
 509
 510     if len(result) == 1:
 511         return HttpResponseRedirect(_get_result_link(result[0], tag_list))
 512     elif len(result) > 1:
 513         return render_to_response(
 514             'catalogue/search_multiple_hits.html',
 515             {
 516                 'tags': tag_list, 'prefix': prefix,
 517                 'results': ((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)
 518             },
 519             context_instance=RequestContext(request))
 520     else:
 521         form = PublishingSuggestForm(initial={"books": prefix + ", "})
 522         return render_to_response(
 523             'catalogue/search_no_hits.html',
 524             {'tags': tag_list, 'prefix': prefix, "pubsuggest_form": form},
 525             context_instance=RequestContext(request))
 526
 527
 528 def tags_starting_with(request):
 529     prefix = request.GET.get('q', '')
 530     # Prefix must have at least 2 characters
 531     if len(prefix) < 2:
 532         return HttpResponse('')
 533     tags_list = []
 534     result = ""
 535     for tag in _tags_starting_with(prefix, request.user):
 536         if tag.name not in tags_list:
 537             result += "\n" + tag.name
 538             tags_list.append(tag.name)
 539     return HttpResponse(result)
 540
 541
 542 def json_tags_starting_with(request, callback=None):
 543     # Callback for JSONP
 544     prefix = request.GET.get('q', '')
 545     callback = request.GET.get('callback', '')
 546     # Prefix must have at least 2 characters
 547     if len(prefix) < 2:
 548         return HttpResponse('')
 549     tags_list = []
 550     for tag in _tags_starting_with(prefix, request.user):
 551         if tag.name not in tags_list:
 552             tags_list.append(tag.name)
 553     if request.GET.get('mozhint', ''):
 554         result = [prefix, tags_list]
 555     else:
 556         result = {"matches": tags_list}
 557     response = JsonResponse(result, safe=False)
 558     if callback:
 559         response.content = callback + "(" + response.content + ");"
 560     return response
 561
 562
 563 # =========
 564 # = Admin =
 565 # =========
 566 @login_required
 567 @staff_required
 568 def import_book(request):
 569     """docstring for import_book"""
 570     book_import_form = forms.BookImportForm(request.POST, request.FILES)
 571     if book_import_form.is_valid():
 572         try:
 573             book_import_form.save()
 574         except:
 575             import sys
 576             import pprint
 577             import traceback
 578             info = sys.exc_info()
 579             exception = pprint.pformat(info[1])
 580             tb = '\n'.join(traceback.format_tb(info[2]))
 581             return HttpResponse(
 582                     _("An error occurred: %(exception)s\n\n%(tb)s") % {'exception': exception, 'tb': tb},
 583                     mimetype='text/plain')
 584         return HttpResponse(_("Book imported successfully"))
 585     else:
 586         return HttpResponse(_("Error importing file: %r") % book_import_form.errors)
 587
 588
 589 # info views for API
 590
 591 def book_info(request, book_id, lang='pl'):
 592     book = get_object_or_404(Book, id=book_id)
 593     # set language by hand
 594     translation.activate(lang)
 595     return render_to_response('catalogue/book_info.html', {'book': book}, context_instance=RequestContext(request))
 596
 597
 598 def tag_info(request, tag_id):
 599     tag = get_object_or_404(Tag, id=tag_id)
 600     return HttpResponse(tag.description)
 601
 602
 603 def download_zip(request, format, slug=None):
 604     if format in Book.ebook_formats:
 605         url = Book.zip_format(format)
 606     elif format in ('mp3', 'ogg') and slug is not None:
 607         book = get_object_or_404(Book, slug=slug)
 608         url = book.zip_audiobooks(format)
 609     else:
 610         raise Http404('No format specified for zip package')
 611     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 612
 613
 614 class CustomPDFFormView(AjaxableFormView):
 615     form_class = forms.CustomPDFForm
 616     title = ugettext_lazy('Download custom PDF')
 617     submit = ugettext_lazy('Download')
 618     honeypot = True
 619
 620     def __call__(self, *args, **kwargs):
 621         if settings.NO_CUSTOM_PDF:
 622             raise Http404('Custom PDF is disabled')
 623         return super(CustomPDFFormView, self).__call__(*args, **kwargs)
 624
 625     def form_args(self, request, obj):
 626         """Override to parse view args and give additional args to the form."""
 627         return (obj,), {}
 628
 629     def get_object(self, request, slug, *args, **kwargs):
 630         return get_object_or_404(Book, slug=slug)
 631
 632     def context_description(self, request, obj):
 633         return obj.pretty_title()
 634
 635
 636 ####
 637 # Includes
 638 ####
 639
 640
 641 @ssi_included
 642 def book_mini(request, pk, with_link=True):
 643     # book = get_object_or_404(Book, pk=pk)
 644     try:
 645         book = Book.objects.only('cover_thumb', 'title', 'language', 'slug').get(pk=pk)
 646     except Book.DoesNotExist:
 647         raise Http404
 648     return render(request, 'catalogue/book_mini_box.html', {
 649         'book': book,
 650         'no_link': not with_link,
 651     })
 652
 653
 654 @ssi_included(get_ssi_vars=lambda pk: (lambda ipk: (
 655         ('ssify.get_csrf_token',),
 656         ('social_tags.likes_book', (ipk,)),
 657         ('social_tags.book_shelf_tags', (ipk,)),
 658     ))(ssi_expect(pk, int)))
 659 def book_short(request, pk):
 660     book = get_object_or_404(Book, pk=pk)
 661     stage_note, stage_note_url = book.stage_note()
 662     audiobooks, projects, have_oggs = get_audiobooks(book)
 663
 664     return render(request, 'catalogue/book_short.html', {
 665         'book': book,
 666         'has_audio': book.has_media('mp3'),
 667         'main_link': book.get_absolute_url(),
 668         'parents': book.parents(),
 669         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 670         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 671         'stage_note': stage_note,
 672         'stage_note_url': stage_note_url,
 673         'audiobooks': audiobooks,
 674         'have_oggs': have_oggs,
 675     })
 676
 677
 678 @ssi_included(
 679     get_ssi_vars=lambda pk: book_short.get_ssi_vars(pk) +
 680     (lambda ipk: (
 681         ('social_tags.choose_cite', [ipk]),
 682         ('catalogue_tags.choose_fragment', [ipk], {
 683             'unless': Var('social_tags.choose_cite', [ipk])}),
 684     ))(ssi_expect(pk, int)))
 685 def book_wide(request, pk):
 686     book = get_object_or_404(Book, pk=pk)
 687     stage_note, stage_note_url = book.stage_note()
 688     extra_info = book.extra_info
 689     audiobooks, projects, have_oggs = get_audiobooks(book)
 690
 691     return render(request, 'catalogue/book_wide.html', {
 692         'book': book,
 693         'has_audio': book.has_media('mp3'),
 694         'parents': book.parents(),
 695         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 696         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 697         'stage_note': stage_note,
 698         'stage_note_url': stage_note_url,
 699
 700         'main_link': reverse('book_text', args=[book.slug]) if book.html_file else None,
 701         'extra_info': extra_info,
 702         'hide_about': extra_info.get('about', '').startswith('http://wiki.wolnepodreczniki.pl'),
 703         'audiobooks': audiobooks,
 704         'have_oggs': have_oggs,
 705     })
 706
 707
 708 @ssi_included
 709 def fragment_short(request, pk):
 710     fragment = get_object_or_404(Fragment, pk=pk)
 711     return render(request, 'catalogue/fragment_short.html', {'fragment': fragment})
 712
 713
 714 @ssi_included
 715 def fragment_promo(request, pk):
 716     fragment = get_object_or_404(Fragment, pk=pk)
 717     return render(request, 'catalogue/fragment_promo.html', {'fragment': fragment})
 718
 719
 720 @ssi_included
 721 def tag_box(request, pk):
 722     tag = get_object_or_404(Tag, pk=pk)
 723     assert tag.category != 'set'
 724
 725     return render(request, 'catalogue/tag_box.html', {
 726         'tag': tag,
 727     })
 728
 729
 730 @ssi_included
 731 def collection_box(request, pk):
 732     obj = get_object_or_404(Collection, pk=pk)
 733
 734     return render(request, 'catalogue/collection_box.html', {
 735         'obj': obj,
 736     })
 737
 738
 739 def tag_catalogue(request, category):
 740     if category == 'theme':
 741         tags = Tag.objects.usage_for_model(
 742             Fragment, counts=True).filter(category='theme')
 743     else:
 744         tags = list(get_top_level_related_tags((), categories=(category,)))
 745
 746     described_tags = [tag for tag in tags if tag.description]
 747
 748     if len(described_tags) > 4:
 749         best = random.sample(described_tags, 4)
 750     else:
 751         best = described_tags
 752
 753     return render(request, 'catalogue/tag_catalogue.html', {
 754         'tags': tags,
 755         'best': best,
 756         'title': constants.CATEGORIES_NAME_PLURAL[category],
 757         'whole_category': constants.WHOLE_CATEGORY[category],
 758         'active_menu_item': 'theme' if category == 'theme' else None,
 759     })
 760
 761
 762 def collections(request):
 763     objects = Collection.objects.all()
 764
 765     if len(objects) > 3:
 766         best = random.sample(objects, 3)
 767     else:
 768         best = objects
 769
 770     return render(request, 'catalogue/collections.html', {
 771         'objects': objects,
 772         'best': best,
 773     })