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 audiobooks:
 186                 all_books = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
 187                 if tags:
 188                     all_books = Book.tagged.with_all(tags, all_books)
 189                 objects = all_books
 190                 # there's never only the daisy audiobook
 191                 daisy = objects.filter(media__type='daisy').distinct().order_by('sort_key_author', 'sort_key')
 192                 related_book_tags = Tag.objects.usage_for_queryset(
 193                     objects, counts=True).exclude(
 194                     category='set').exclude(pk__in=tags_pks)
 195             else:
 196                 if tags:
 197                     all_books = Book.tagged.with_all(tags)
 198                 else:
 199                     all_books = Book.objects.filter(parent=None)
 200                 if shelf_is_set:
 201                     objects = all_books
 202                     related_book_tags = Tag.objects.usage_for_queryset(
 203                         objects, counts=True).exclude(
 204                         category='set').exclude(pk__in=tags_pks)
 205                 else:
 206                     if tags:
 207                         objects = Book.tagged_top_level(tags)
 208                     else:
 209                         objects = all_books
 210                     related_book_tags = get_top_level_related_tags(tags)
 211
 212             fragments = Fragment.objects.filter(book__in=all_books)
 213
 214             categories = split_tags(
 215                 related_book_tags,
 216                 Tag.objects.usage_for_queryset(
 217                     fragments, counts=True).filter(
 218                     category='theme').exclude(pk__in=tags_pks),
 219             )
 220         objects = objects.order_by('sort_key_author', 'sort_key')
 221
 222     objects = list(objects)
 223     if len(objects) > 3:
 224         best = random.sample(objects, 3)
 225     else:
 226         best = objects
 227
 228     if not gallery and not objects and len(tags) == 1:
 229         tag = tags[0]
 230         if tag.category in ('theme', 'thing') and (
 231                 PictureArea.tagged.with_any([tag]).exists() or
 232                 Picture.tagged.with_any([tag]).exists()):
 233             return redirect('tagged_object_list_gallery', raw_tags)
 234
 235     # this is becoming more and more hacky
 236     if list_type == 'default' and not tags:
 237         last_published = Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:20]
 238     else:
 239         last_published = None
 240
 241     return render_to_response(
 242         'catalogue/tagged_object_list.html',
 243         {
 244             'object_list': objects,
 245             'categories': categories,
 246             'only_shelf': only_shelf,
 247             'only_my_shelf': only_my_shelf,
 248             'formats_form': forms.DownloadFormatsForm(),
 249             'tags': tags,
 250             'tag_ids': tags_pks,
 251             'theme_is_set': theme_is_set,
 252             'best': best,
 253             'list_type': list_type,
 254             'daisy': daisy,
 255             'last_published': last_published,
 256         },
 257         context_instance=RequestContext(request))
 258
 259
 260 def book_fragments(request, slug, theme_slug):
 261     book = get_object_or_404(Book, slug=slug)
 262     theme = get_object_or_404(Tag, slug=theme_slug, category='theme')
 263     fragments = Fragment.tagged.with_all([theme]).filter(
 264         Q(book=book) | Q(book__ancestor=book))
 265
 266     return render_to_response('catalogue/book_fragments.html', {
 267         'book': book,
 268         'theme': theme,
 269         'fragments': fragments,
 270     }, context_instance=RequestContext(request))
 271
 272
 273 def book_detail(request, slug):
 274     try:
 275         book = Book.objects.get(slug=slug)
 276     except Book.DoesNotExist:
 277         return pdcounter_views.book_stub_detail(request, slug)
 278
 279     return render_to_response('catalogue/book_detail.html', {
 280         'book': book,
 281         'tags': book.tags.exclude(category__in=('set', 'theme')),
 282         'book_children': book.children.all().order_by('parent_number', 'sort_key'),
 283     }, context_instance=RequestContext(request))
 284
 285
 286 def get_audiobooks(book):
 287     ogg_files = {}
 288     for m in book.media.filter(type='ogg').order_by().iterator():
 289         ogg_files[m.name] = m
 290
 291     audiobooks = []
 292     have_oggs = True
 293     projects = set()
 294     for mp3 in book.media.filter(type='mp3').iterator():
 295         # ogg files are always from the same project
 296         meta = mp3.extra_info
 297         project = meta.get('project')
 298         if not project:
 299             # temporary fallback
 300             project = u'CzytamySłuchając'
 301
 302         projects.add((project, meta.get('funded_by', '')))
 303
 304         media = {'mp3': mp3}
 305
 306         ogg = ogg_files.get(mp3.name)
 307         if ogg:
 308             media['ogg'] = ogg
 309         else:
 310             have_oggs = False
 311         audiobooks.append(media)
 312
 313     projects = sorted(projects)
 314     return audiobooks, projects, have_oggs
 315
 316
 317 # używane tylko do audiobook_tree, które jest używane tylko w snippets/audiobook_list.html, które nie jest używane
 318 def player(request, slug):
 319     book = get_object_or_404(Book, slug=slug)
 320     if not book.has_media('mp3'):
 321         raise Http404
 322
 323     audiobooks, projects, have_oggs = get_audiobooks(book)
 324
 325     # extra_info = book.extra_info
 326
 327     return render_to_response('catalogue/player.html', {
 328         'book': book,
 329         'audiobook': '',
 330         'audiobooks': audiobooks,
 331         'projects': projects,
 332     }, context_instance=RequestContext(request))
 333
 334
 335 def book_text(request, slug):
 336     book = get_object_or_404(Book, slug=slug)
 337
 338     if not book.has_html_file():
 339         raise Http404
 340     return render_to_response('catalogue/book_text.html', {'book': book,}, context_instance=RequestContext(request))
 341
 342
 343 # ==========
 344 # = Search =
 345 # ==========
 346
 347 def _no_diacritics_regexp(query):
 348     """ returns a regexp for searching for a query without diacritics
 349
 350     should be locale-aware """
 351     names = {
 352         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',
 353         u'z': u'zźżŹŻ',
 354         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',
 355         u'ż': u'żŻ'
 356         }
 357
 358     def repl(m):
 359         l = m.group()
 360         return u"(%s)" % '|'.join(names[l])
 361
 362     return re.sub(u'[%s]' % (u''.join(names.keys())), repl, query)
 363
 364
 365 def unicode_re_escape(query):
 366     """ Unicode-friendly version of re.escape """
 367     return re.sub(r'(?u)(\W)', r'\\\1', query)
 368
 369
 370 def _word_starts_with(name, prefix):
 371     """returns a Q object getting models having `name` contain a word
 372     starting with `prefix`
 373
 374     We define word characters as alphanumeric and underscore, like in JS.
 375
 376     Works for MySQL, PostgreSQL, Oracle.
 377     For SQLite, _sqlite* version is substituted for this.
 378     """
 379     kwargs = {}
 380
 381     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 382     # can't use [[:<:]] (word start),
 383     # but we want both `xy` and `(xy` to catch `(xyz)`
 384     kwargs['%s__iregex' % name] = u"(^|[^[:alnum:]_])%s" % prefix
 385
 386     return Q(**kwargs)
 387
 388
 389 def _word_starts_with_regexp(prefix):
 390     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 391     return ur"(^|(?<=[^\wąćęłńóśźżĄĆĘŁŃÓŚŹŻ]))%s" % prefix
 392
 393
 394 def _sqlite_word_starts_with(name, prefix):
 395     """ version of _word_starts_with for SQLite
 396
 397     SQLite in Django uses Python re module
 398     """
 399     kwargs = {'%s__iregex' % name: _word_starts_with_regexp(prefix)}
 400     return Q(**kwargs)
 401
 402
 403 if hasattr(settings, 'DATABASES'):
 404     if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
 405         _word_starts_with = _sqlite_word_starts_with
 406 elif settings.DATABASE_ENGINE == 'sqlite3':
 407     _word_starts_with = _sqlite_word_starts_with
 408
 409
 410 class App:
 411     def __init__(self, name, view):
 412         self.name = name
 413         self._view = view
 414         self.lower = name.lower()
 415         self.category = 'application'
 416
 417     def view(self):
 418         return reverse(*self._view)
 419
 420 _apps = (
 421     App(u'Leśmianator', (u'lesmianator', )),
 422     )
 423
 424
 425 def _tags_starting_with(prefix, user=None):
 426     prefix = prefix.lower()
 427     # PD counter
 428     book_stubs = BookStub.objects.filter(_word_starts_with('title', prefix))
 429     authors = Author.objects.filter(_word_starts_with('name', prefix))
 430
 431     books = Book.objects.filter(_word_starts_with('title', prefix))
 432     tags = Tag.objects.filter(_word_starts_with('name', prefix))
 433     if user and user.is_authenticated():
 434         tags = tags.filter(~Q(category='set') | Q(user=user))
 435     else:
 436         tags = tags.exclude(category='set')
 437
 438     prefix_regexp = re.compile(_word_starts_with_regexp(prefix))
 439     return list(books) + list(tags) + [app for app in _apps if prefix_regexp.search(app.lower)] + list(book_stubs) + \
 440         list(authors)
 441
 442
 443 def _get_result_link(match, tag_list):
 444     if isinstance(match, Tag):
 445         return reverse('catalogue.views.tagged_object_list',
 446                        kwargs={'tags': '/'.join(tag.url_chunk for tag in tag_list + [match])})
 447     elif isinstance(match, App):
 448         return match.view()
 449     else:
 450         return match.get_absolute_url()
 451
 452
 453 def _get_result_type(match):
 454     if isinstance(match, Book) or isinstance(match, BookStub):
 455         match_type = 'book'
 456     else:
 457         match_type = match.category
 458     return match_type
 459
 460
 461 def books_starting_with(prefix):
 462     prefix = prefix.lower()
 463     return Book.objects.filter(_word_starts_with('title', prefix))
 464
 465
 466 def find_best_matches(query, user=None):
 467     """ Finds a Book, Tag, BookStub or Author best matching a query.
 468
 469     Returns a with:
 470       - zero elements when nothing is found,
 471       - one element when a best result is found,
 472       - more then one element on multiple exact matches
 473
 474     Raises a ValueError on too short a query.
 475     """
 476
 477     query = query.lower()
 478     if len(query) < 2:
 479         raise ValueError("query must have at least two characters")
 480
 481     result = tuple(_tags_starting_with(query, user))
 482     # remove pdcounter stuff
 483     book_titles = set(match.pretty_title().lower() for match in result
 484                       if isinstance(match, Book))
 485     authors = set(match.name.lower() for match in result
 486                   if isinstance(match, Tag) and match.category == 'author')
 487     result = tuple(res for res in result if not (
 488                  (isinstance(res, BookStub) and res.pretty_title().lower() in book_titles) or
 489                  (isinstance(res, Author) and res.name.lower() in authors)
 490              ))
 491
 492     exact_matches = tuple(res for res in result if res.name.lower() == query)
 493     if exact_matches:
 494         return exact_matches
 495     else:
 496         return tuple(result)[:1]
 497
 498
 499 def search(request):
 500     tags = request.GET.get('tags', '')
 501     prefix = request.GET.get('q', '')
 502
 503     try:
 504         tag_list = Tag.get_tag_list(tags)
 505     except (Tag.DoesNotExist, Tag.MultipleObjectsReturned, Tag.UrlDeprecationWarning):
 506         tag_list = []
 507
 508     try:
 509         result = find_best_matches(prefix, request.user)
 510     except ValueError:
 511         return render_to_response(
 512             'catalogue/search_too_short.html', {'tags': tag_list, 'prefix': prefix},
 513             context_instance=RequestContext(request))
 514
 515     if len(result) == 1:
 516         return HttpResponseRedirect(_get_result_link(result[0], tag_list))
 517     elif len(result) > 1:
 518         return render_to_response(
 519             'catalogue/search_multiple_hits.html',
 520             {
 521                 'tags': tag_list, 'prefix': prefix,
 522                 'results': ((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)
 523             },
 524             context_instance=RequestContext(request))
 525     else:
 526         form = PublishingSuggestForm(initial={"books": prefix + ", "})
 527         return render_to_response(
 528             'catalogue/search_no_hits.html',
 529             {'tags': tag_list, 'prefix': prefix, "pubsuggest_form": form},
 530             context_instance=RequestContext(request))
 531
 532
 533 def tags_starting_with(request):
 534     prefix = request.GET.get('q', '')
 535     # Prefix must have at least 2 characters
 536     if len(prefix) < 2:
 537         return HttpResponse('')
 538     tags_list = []
 539     result = ""
 540     for tag in _tags_starting_with(prefix, request.user):
 541         if tag.name not in tags_list:
 542             result += "\n" + tag.name
 543             tags_list.append(tag.name)
 544     return HttpResponse(result)
 545
 546
 547 def json_tags_starting_with(request, callback=None):
 548     # Callback for JSONP
 549     prefix = request.GET.get('q', '')
 550     callback = request.GET.get('callback', '')
 551     # Prefix must have at least 2 characters
 552     if len(prefix) < 2:
 553         return HttpResponse('')
 554     tags_list = []
 555     for tag in _tags_starting_with(prefix, request.user):
 556         if tag.name not in tags_list:
 557             tags_list.append(tag.name)
 558     if request.GET.get('mozhint', ''):
 559         result = [prefix, tags_list]
 560     else:
 561         result = {"matches": tags_list}
 562     response = JsonResponse(result, safe=False)
 563     if callback:
 564         response.content = callback + "(" + response.content + ");"
 565     return response
 566
 567
 568 # =========
 569 # = Admin =
 570 # =========
 571 @login_required
 572 @staff_required
 573 def import_book(request):
 574     """docstring for import_book"""
 575     book_import_form = forms.BookImportForm(request.POST, request.FILES)
 576     if book_import_form.is_valid():
 577         try:
 578             book_import_form.save()
 579         except:
 580             import sys
 581             import pprint
 582             import traceback
 583             info = sys.exc_info()
 584             exception = pprint.pformat(info[1])
 585             tb = '\n'.join(traceback.format_tb(info[2]))
 586             return HttpResponse(
 587                     _("An error occurred: %(exception)s\n\n%(tb)s") % {'exception': exception, 'tb': tb},
 588                     mimetype='text/plain')
 589         return HttpResponse(_("Book imported successfully"))
 590     else:
 591         return HttpResponse(_("Error importing file: %r") % book_import_form.errors)
 592
 593
 594 # info views for API
 595
 596 def book_info(request, book_id, lang='pl'):
 597     book = get_object_or_404(Book, id=book_id)
 598     # set language by hand
 599     translation.activate(lang)
 600     return render_to_response('catalogue/book_info.html', {'book': book}, context_instance=RequestContext(request))
 601
 602
 603 def tag_info(request, tag_id):
 604     tag = get_object_or_404(Tag, id=tag_id)
 605     return HttpResponse(tag.description)
 606
 607
 608 def download_zip(request, format, slug=None):
 609     if format in Book.ebook_formats:
 610         url = Book.zip_format(format)
 611     elif format in ('mp3', 'ogg') and slug is not None:
 612         book = get_object_or_404(Book, slug=slug)
 613         url = book.zip_audiobooks(format)
 614     else:
 615         raise Http404('No format specified for zip package')
 616     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 617
 618
 619 class CustomPDFFormView(AjaxableFormView):
 620     form_class = forms.CustomPDFForm
 621     title = ugettext_lazy('Download custom PDF')
 622     submit = ugettext_lazy('Download')
 623     honeypot = True
 624
 625     def __call__(self, *args, **kwargs):
 626         if settings.NO_CUSTOM_PDF:
 627             raise Http404('Custom PDF is disabled')
 628         return super(CustomPDFFormView, self).__call__(*args, **kwargs)
 629
 630     def form_args(self, request, obj):
 631         """Override to parse view args and give additional args to the form."""
 632         return (obj,), {}
 633
 634     def get_object(self, request, slug, *args, **kwargs):
 635         return get_object_or_404(Book, slug=slug)
 636
 637     def context_description(self, request, obj):
 638         return obj.pretty_title()
 639
 640
 641 ####
 642 # Includes
 643 ####
 644
 645
 646 @ssi_included
 647 def book_mini(request, pk, with_link=True):
 648     book = get_object_or_404(Book, pk=pk)
 649     author_str = ", ".join(tag.name for tag in book.tags.filter(category='author'))
 650     return render(request, 'catalogue/book_mini_box.html', {
 651         'book': book,
 652         'author_str': author_str,
 653         'with_link': with_link,
 654         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 655     })
 656
 657
 658 @ssi_included(get_ssi_vars=lambda pk: (lambda ipk: (
 659         ('ssify.get_csrf_token',),
 660         ('social_tags.likes_book', (ipk,)),
 661         ('social_tags.book_shelf_tags', (ipk,)),
 662     ))(ssi_expect(pk, int)))
 663 def book_short(request, pk):
 664     book = get_object_or_404(Book, pk=pk)
 665     stage_note, stage_note_url = book.stage_note()
 666     audiobooks, projects, have_oggs = get_audiobooks(book)
 667
 668     return render(request, 'catalogue/book_short.html', {
 669         'book': book,
 670         'has_audio': book.has_media('mp3'),
 671         'main_link': book.get_absolute_url(),
 672         'parents': book.parents(),
 673         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 674         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 675         'stage_note': stage_note,
 676         'stage_note_url': stage_note_url,
 677         'audiobooks': audiobooks,
 678         'have_oggs': have_oggs,
 679     })
 680
 681
 682 @ssi_included(
 683     get_ssi_vars=lambda pk: book_short.get_ssi_vars(pk) +
 684     (lambda ipk: (
 685         ('social_tags.choose_cite', [ipk]),
 686         ('catalogue_tags.choose_fragment', [ipk], {
 687             'unless': Var('social_tags.choose_cite', [ipk])}),
 688     ))(ssi_expect(pk, int)))
 689 def book_wide(request, pk):
 690     book = get_object_or_404(Book, pk=pk)
 691     stage_note, stage_note_url = book.stage_note()
 692     extra_info = book.extra_info
 693     audiobooks, projects, have_oggs = get_audiobooks(book)
 694
 695     return render(request, 'catalogue/book_wide.html', {
 696         'book': book,
 697         'has_audio': book.has_media('mp3'),
 698         'parents': book.parents(),
 699         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 700         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 701         'stage_note': stage_note,
 702         'stage_note_url': stage_note_url,
 703
 704         'main_link': reverse('book_text', args=[book.slug]) if book.html_file else None,
 705         'extra_info': extra_info,
 706         'hide_about': extra_info.get('about', '').startswith('http://wiki.wolnepodreczniki.pl'),
 707         'audiobooks': audiobooks,
 708         'have_oggs': have_oggs,
 709     })
 710
 711
 712 @ssi_included
 713 def fragment_short(request, pk):
 714     fragment = get_object_or_404(Fragment, pk=pk)
 715     return render(request, 'catalogue/fragment_short.html', {'fragment': fragment})
 716
 717
 718 @ssi_included
 719 def fragment_promo(request, pk):
 720     fragment = get_object_or_404(Fragment, pk=pk)
 721     return render(request, 'catalogue/fragment_promo.html', {'fragment': fragment})
 722
 723
 724 @ssi_included
 725 def tag_box(request, pk):
 726     tag = get_object_or_404(Tag, pk=pk)
 727     assert tag.category != 'set'
 728
 729     return render(request, 'catalogue/tag_box.html', {
 730         'tag': tag,
 731     })
 732
 733
 734 @ssi_included
 735 def collection_box(request, pk):
 736     obj = get_object_or_404(Collection, pk=pk)
 737
 738     return render(request, 'catalogue/collection_box.html', {
 739         'obj': obj,
 740     })
 741
 742
 743 def tag_catalogue(request, category):
 744     if category == 'theme':
 745         tags = Tag.objects.usage_for_model(
 746             Fragment, counts=True).filter(category='theme')
 747     else:
 748         tags = list(get_top_level_related_tags((), categories=(category,)))
 749
 750     described_tags = [tag for tag in tags if tag.description]
 751
 752     if len(described_tags) > 4:
 753         best = random.sample(described_tags, 4)
 754     else:
 755         best = described_tags
 756
 757     return render(request, 'catalogue/tag_catalogue.html', {
 758         'tags': tags,
 759         'best': best,
 760         'title': constants.CATEGORIES_NAME_PLURAL[category],
 761         'whole_category': constants.WHOLE_CATEGORY[category],
 762     })
 763
 764
 765 def collections(request):
 766     objects = Collection.objects.all()
 767
 768     if len(objects) > 3:
 769         best = random.sample(objects, 3)
 770     else:
 771         best = objects
 772
 773     return render(request, 'catalogue/collections.html', {
 774         'objects': objects,
 775         'best': best,
 776     })