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