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, QuerySet
  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 from catalogue.models.tag import prefetch_relations
  33
  34 staff_required = user_passes_test(lambda user: user.is_staff)
  35
  36
  37 def catalogue(request):
  38     return render(request, 'catalogue/catalogue.html', {
  39         'books': Book.objects.filter(parent=None),
  40         'pictures': Picture.objects.all(),
  41         'collections': Collection.objects.all(),
  42         'active_menu_item': 'all_works',
  43     })
  44
  45
  46 def book_list(request, filters=None, template_name='catalogue/book_list.html',
  47               nav_template_name='catalogue/snippets/book_list_nav.html',
  48               list_template_name='catalogue/snippets/book_list.html'):
  49     """ generates a listing of all books, optionally filtered """
  50     books_by_author, orphans, books_by_parent = Book.book_list(filters)
  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 daisy_list(request):
  67     return book_list(request, Q(media__type='daisy'), template_name='catalogue/daisy_list.html')
  68
  69
  70 def collection(request, slug):
  71     coll = get_object_or_404(Collection, slug=slug)
  72     return render(request, 'catalogue/collection.html', {'collection': coll})
  73
  74
  75 def differentiate_tags(request, tags, ambiguous_slugs):
  76     beginning = '/'.join(tag.url_chunk for tag in tags)
  77     unparsed = '/'.join(ambiguous_slugs[1:])
  78     options = []
  79     for tag in Tag.objects.filter(slug=ambiguous_slugs[0]):
  80         options.append({
  81             'url_args': '/'.join((beginning, tag.url_chunk, unparsed)).strip('/'),
  82             'tags': [tag]
  83         })
  84     return render_to_response(
  85         'catalogue/differentiate_tags.html', {'tags': tags, 'options': options, 'unparsed': ambiguous_slugs[1:]},
  86         context_instance=RequestContext(request))
  87
  88
  89 def object_list(request, objects, fragments=None, related_tags=None, tags=None, list_type='books', extra=None):
  90     if not tags:
  91         tags = []
  92     tag_ids = [tag.pk for tag in tags]
  93
  94     related_tag_lists = []
  95     if related_tags:
  96         related_tag_lists.append(related_tags)
  97     else:
  98         related_tag_lists.append(
  99             Tag.objects.usage_for_queryset(objects, counts=True).exclude(category='set').exclude(pk__in=tag_ids))
 100     if not (extra and extra.get('theme_is_set')):
 101         if fragments is None:
 102             if list_type == 'gallery':
 103                 fragments = PictureArea.objects.filter(picture__in=objects)
 104             else:
 105                 fragments = Fragment.objects.filter(book__in=objects)
 106         related_tag_lists.append(
 107             Tag.objects.usage_for_queryset(fragments, counts=True).filter(category='theme').exclude(pk__in=tag_ids)
 108             .only('name', 'sort_key', 'category', 'slug'))
 109         if isinstance(objects, QuerySet):
 110             objects = prefetch_relations(objects, 'author')
 111
 112     categories = split_tags(*related_tag_lists)
 113
 114     objects = list(objects)
 115
 116     if not objects and len(tags) == 1 and list_type == 'books':
 117         if PictureArea.tagged.with_any(tags).exists() or Picture.tagged.with_any(tags).exists():
 118             return redirect('tagged_object_list_gallery', '/'.join(tag.url_chunk for tag in tags))
 119
 120     if len(objects) > 3:
 121         best = random.sample(objects, 3)
 122     else:
 123         best = objects
 124
 125     result = {
 126         'object_list': objects,
 127         'categories': categories,
 128         'list_type': list_type,
 129         'tags': tags,
 130
 131         'formats_form': forms.DownloadFormatsForm(),
 132         'best': best,
 133         'active_menu_item': list_type,
 134     }
 135     if extra:
 136         result.update(extra)
 137     return render_to_response(
 138         'catalogue/tagged_object_list.html', result,
 139         context_instance=RequestContext(request))
 140
 141
 142 def literature(request):
 143     books = Book.objects.filter(parent=None)
 144
 145     # last_published = Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:20]
 146     # most_popular = Book.objects.exclude(cover_thumb='')\
 147     #                    .order_by('-popularity__count', 'sort_key_author', 'sort_key')[:20]
 148     return object_list(request, books, related_tags=get_top_level_related_tags([]))
 149     # extra={
 150     #     'last_published': last_published,
 151     #     'most_popular': most_popular,
 152     # })
 153
 154
 155 def gallery(request):
 156     return object_list(request, Picture.objects.all(), list_type='gallery')
 157
 158
 159 def audiobooks(request):
 160     audiobooks = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
 161     return object_list(request, audiobooks, list_type='audiobooks', extra={
 162         'daisy': Book.objects.filter(media__type='daisy').distinct(),
 163     })
 164
 165
 166 class ResponseInstead(Exception):
 167     def __init__(self, response):
 168         super(ResponseInstead, self).__init__()
 169         self.response = response
 170
 171
 172 def analyse_tags(request, tag_str):
 173     try:
 174         tags = Tag.get_tag_list(tag_str)
 175     except Tag.DoesNotExist:
 176         # Perhaps the user is asking about an author in Public Domain
 177         # counter (they are not represented in tags)
 178         chunks = tag_str.split('/')
 179         if len(chunks) == 2 and chunks[0] == 'autor':
 180             raise ResponseInstead(pdcounter_views.author_detail(request, chunks[1]))
 181         else:
 182             raise Http404
 183     except Tag.MultipleObjectsReturned, e:
 184         # Ask the user to disambiguate
 185         raise ResponseInstead(differentiate_tags(request, e.tags, e.ambiguous_slugs))
 186     except Tag.UrlDeprecationWarning, e:
 187         raise ResponseInstead(HttpResponsePermanentRedirect(
 188             reverse('tagged_object_list', args=['/'.join(tag.url_chunk for tag in e.tags)])))
 189
 190     try:
 191         if len(tags) > settings.MAX_TAG_LIST:
 192             raise Http404
 193     except AttributeError:
 194         pass
 195
 196     return tags
 197
 198
 199 def theme_list(request, tags, list_type):
 200     shelf_tags = [tag for tag in tags if tag.category == 'set']
 201     fragment_tags = [tag for tag in tags if tag.category != 'set']
 202     if list_type == 'gallery':
 203         fragments = PictureArea.tagged.with_all(fragment_tags)
 204     else:
 205         fragments = Fragment.tagged.with_all(fragment_tags)
 206
 207     if shelf_tags:
 208         # TODO: Pictures on shelves not supported yet.
 209         books = Book.tagged.with_all(shelf_tags).order_by()
 210         fragments = fragments.filter(Q(book__in=books) | Q(book__ancestor__in=books))
 211
 212     if not fragments and len(tags) == 1 and list_type == 'books':
 213         if PictureArea.tagged.with_any(tags).exists() or Picture.tagged.with_any(tags).exists():
 214             return redirect('tagged_object_list_gallery', '/'.join(tag.url_chunk for tag in tags))
 215
 216     return object_list(request, fragments, tags=tags, list_type=list_type, extra={
 217         'theme_is_set': True,
 218         'active_menu_item': 'theme',
 219     })
 220
 221
 222 def tagged_object_list(request, tags, list_type):
 223     try:
 224         tags = analyse_tags(request, tags)
 225     except ResponseInstead as e:
 226         return e.response
 227
 228     if list_type == 'gallery' and any(tag.category == 'set' for tag in tags):
 229         raise Http404
 230
 231     if any(tag.category in ('theme', 'thing') for tag in tags):
 232         return theme_list(request, tags, list_type=list_type)
 233
 234     if list_type == 'books':
 235         books = Book.tagged.with_all(tags)
 236
 237         if any(tag.category == 'set' for tag in tags):
 238             params = {'objects': books}
 239         else:
 240             params = {
 241                 'objects': Book.tagged_top_level(tags),
 242                 'fragments': Fragment.objects.filter(book__in=books),
 243                 'related_tags': get_top_level_related_tags(tags),
 244             }
 245     elif list_type == 'gallery':
 246         params = {'objects': Picture.tagged.with_all(tags)}
 247     elif list_type == 'audiobooks':
 248         audiobooks = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
 249         params = {
 250             'objects': Book.tagged.with_all(tags, audiobooks),
 251             'extra': {
 252                 'daisy': Book.tagged.with_all(tags, audiobooks.filter(media__type='daisy').distinct()),
 253             }
 254         }
 255     else:
 256         raise Http404
 257
 258     return object_list(request, tags=tags, list_type=list_type, **params)
 259
 260
 261 def book_fragments(request, slug, theme_slug):
 262     book = get_object_or_404(Book, slug=slug)
 263     theme = get_object_or_404(Tag, slug=theme_slug, category='theme')
 264     fragments = Fragment.tagged.with_all([theme]).filter(
 265         Q(book=book) | Q(book__ancestor=book))
 266
 267     return render_to_response('catalogue/book_fragments.html', {
 268         'book': book,
 269         'theme': theme,
 270         'fragments': fragments,
 271         'active_menu_item': 'books',
 272     }, context_instance=RequestContext(request))
 273
 274
 275 def book_detail(request, slug):
 276     try:
 277         book = Book.objects.get(slug=slug)
 278     except Book.DoesNotExist:
 279         return pdcounter_views.book_stub_detail(request, slug)
 280
 281     return render_to_response('catalogue/book_detail.html', {
 282         'book': book,
 283         'tags': book.tags.exclude(category__in=('set', 'theme')),
 284         'book_children': book.children.all().order_by('parent_number', 'sort_key'),
 285         'active_menu_item': 'books',
 286     }, context_instance=RequestContext(request))
 287
 288
 289 # używane w publicznym interfejsie
 290 def player(request, slug):
 291     book = get_object_or_404(Book, slug=slug)
 292     if not book.has_media('mp3'):
 293         raise Http404
 294
 295     audiobooks, projects = book.get_audiobooks()
 296
 297     return render_to_response('catalogue/player.html', {
 298         'book': book,
 299         'audiobook': '',
 300         'audiobooks': audiobooks,
 301         'projects': projects,
 302     }, context_instance=RequestContext(request))
 303
 304
 305 def book_text(request, slug):
 306     book = get_object_or_404(Book, slug=slug)
 307
 308     if not book.has_html_file():
 309         raise Http404
 310     return render_to_response('catalogue/book_text.html', {'book': book}, context_instance=RequestContext(request))
 311
 312
 313 # ==========
 314 # = Search =
 315 # ==========
 316
 317 def _no_diacritics_regexp(query):
 318     """ returns a regexp for searching for a query without diacritics
 319
 320     should be locale-aware """
 321     names = {
 322         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',
 323         u'z': u'zźżŹŻ',
 324         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',
 325         u'ż': u'żŻ'
 326         }
 327
 328     def repl(m):
 329         l = m.group()
 330         return u"(?:%s)" % '|'.join(names[l])
 331
 332     return re.sub(u'[%s]' % (u''.join(names.keys())), repl, query)
 333
 334
 335 def unicode_re_escape(query):
 336     """ Unicode-friendly version of re.escape """
 337     s = list(query)
 338     for i, c in enumerate(query):
 339         if re.match(r'(?u)(\W)', c) and re.match(r'[\x00-\x7e]', c):
 340             if c == "\000":
 341                 s[i] = "\\000"
 342             else:
 343                 s[i] = "\\" + c
 344     return query[:0].join(s)
 345
 346
 347 def _word_starts_with(name, prefix):
 348     """returns a Q object getting models having `name` contain a word
 349     starting with `prefix`
 350
 351     We define word characters as alphanumeric and underscore, like in JS.
 352
 353     Works for MySQL, PostgreSQL, Oracle.
 354     For SQLite, _sqlite* version is substituted for this.
 355     """
 356     kwargs = {}
 357
 358     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 359     # can't use [[:<:]] (word start),
 360     # but we want both `xy` and `(xy` to catch `(xyz)`
 361     kwargs['%s__iregex' % name] = u"(^|[^[:alnum:]_])%s" % prefix
 362
 363     return Q(**kwargs)
 364
 365
 366 def _word_starts_with_regexp(prefix):
 367     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 368     return ur"(^|(?<=[^\wąćęłńóśźżĄĆĘŁŃÓŚŹŻ]))%s" % prefix
 369
 370
 371 def _sqlite_word_starts_with(name, prefix):
 372     """ version of _word_starts_with for SQLite
 373
 374     SQLite in Django uses Python re module
 375     """
 376     kwargs = {'%s__iregex' % name: _word_starts_with_regexp(prefix)}
 377     return Q(**kwargs)
 378
 379
 380 if hasattr(settings, 'DATABASES'):
 381     if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
 382         _word_starts_with = _sqlite_word_starts_with
 383 elif settings.DATABASE_ENGINE == 'sqlite3':
 384     _word_starts_with = _sqlite_word_starts_with
 385
 386
 387 class App:
 388     def __init__(self, name, view):
 389         self.name = name
 390         self._view = view
 391         self.lower = name.lower()
 392         self.category = 'application'
 393
 394     def view(self):
 395         return reverse(*self._view)
 396
 397 _apps = (
 398     App(u'Leśmianator', (u'lesmianator', )),
 399     )
 400
 401
 402 def _tags_starting_with(prefix, user=None):
 403     prefix = prefix.lower()
 404     # PD counter
 405     book_stubs = BookStub.objects.filter(_word_starts_with('title', prefix))
 406     authors = Author.objects.filter(_word_starts_with('name', prefix))
 407
 408     books = Book.objects.filter(_word_starts_with('title', prefix))
 409     tags = Tag.objects.filter(_word_starts_with('name', prefix))
 410     if user and user.is_authenticated():
 411         tags = tags.filter(~Q(category='set') | Q(user=user))
 412     else:
 413         tags = tags.exclude(category='set')
 414
 415     prefix_regexp = re.compile(_word_starts_with_regexp(prefix))
 416     return list(books) + list(tags) + [app for app in _apps if prefix_regexp.search(app.lower)] + list(book_stubs) + \
 417         list(authors)
 418
 419
 420 def _get_result_link(match, tag_list):
 421     if isinstance(match, Tag):
 422         return reverse('catalogue.views.tagged_object_list',
 423                        kwargs={'tags': '/'.join(tag.url_chunk for tag in tag_list + [match])})
 424     elif isinstance(match, App):
 425         return match.view()
 426     else:
 427         return match.get_absolute_url()
 428
 429
 430 def _get_result_type(match):
 431     if isinstance(match, Book) or isinstance(match, BookStub):
 432         match_type = 'book'
 433     else:
 434         match_type = match.category
 435     return match_type
 436
 437
 438 def books_starting_with(prefix):
 439     prefix = prefix.lower()
 440     return Book.objects.filter(_word_starts_with('title', prefix))
 441
 442
 443 def find_best_matches(query, user=None):
 444     """ Finds a Book, Tag, BookStub or Author best matching a query.
 445
 446     Returns a with:
 447       - zero elements when nothing is found,
 448       - one element when a best result is found,
 449       - more then one element on multiple exact matches
 450
 451     Raises a ValueError on too short a query.
 452     """
 453
 454     query = query.lower()
 455     if len(query) < 2:
 456         raise ValueError("query must have at least two characters")
 457
 458     result = tuple(_tags_starting_with(query, user))
 459     # remove pdcounter stuff
 460     book_titles = set(match.pretty_title().lower() for match in result
 461                       if isinstance(match, Book))
 462     authors = set(match.name.lower() for match in result
 463                   if isinstance(match, Tag) and match.category == 'author')
 464     result = tuple(res for res in result if not (
 465                  (isinstance(res, BookStub) and res.pretty_title().lower() in book_titles) or
 466                  (isinstance(res, Author) and res.name.lower() in authors)
 467              ))
 468
 469     exact_matches = tuple(res for res in result if res.name.lower() == query)
 470     if exact_matches:
 471         return exact_matches
 472     else:
 473         return tuple(result)[:1]
 474
 475
 476 def search(request):
 477     tags = request.GET.get('tags', '')
 478     prefix = request.GET.get('q', '')
 479
 480     try:
 481         tag_list = Tag.get_tag_list(tags)
 482     except (Tag.DoesNotExist, Tag.MultipleObjectsReturned, Tag.UrlDeprecationWarning):
 483         tag_list = []
 484
 485     try:
 486         result = find_best_matches(prefix, request.user)
 487     except ValueError:
 488         return render_to_response(
 489             'catalogue/search_too_short.html', {'tags': tag_list, 'prefix': prefix},
 490             context_instance=RequestContext(request))
 491
 492     if len(result) == 1:
 493         return HttpResponseRedirect(_get_result_link(result[0], tag_list))
 494     elif len(result) > 1:
 495         return render_to_response(
 496             'catalogue/search_multiple_hits.html',
 497             {
 498                 'tags': tag_list, 'prefix': prefix,
 499                 'results': ((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)
 500             },
 501             context_instance=RequestContext(request))
 502     else:
 503         form = PublishingSuggestForm(initial={"books": prefix + ", "})
 504         return render_to_response(
 505             'catalogue/search_no_hits.html',
 506             {'tags': tag_list, 'prefix': prefix, "pubsuggest_form": form},
 507             context_instance=RequestContext(request))
 508
 509
 510 def tags_starting_with(request):
 511     prefix = request.GET.get('q', '')
 512     # Prefix must have at least 2 characters
 513     if len(prefix) < 2:
 514         return HttpResponse('')
 515     tags_list = []
 516     result = ""
 517     for tag in _tags_starting_with(prefix, request.user):
 518         if tag.name not in tags_list:
 519             result += "\n" + tag.name
 520             tags_list.append(tag.name)
 521     return HttpResponse(result)
 522
 523
 524 def json_tags_starting_with(request, callback=None):
 525     # Callback for JSONP
 526     prefix = request.GET.get('q', '')
 527     callback = request.GET.get('callback', '')
 528     # Prefix must have at least 2 characters
 529     if len(prefix) < 2:
 530         return HttpResponse('')
 531     tags_list = []
 532     for tag in _tags_starting_with(prefix, request.user):
 533         if tag.name not in tags_list:
 534             tags_list.append(tag.name)
 535     if request.GET.get('mozhint', ''):
 536         result = [prefix, tags_list]
 537     else:
 538         result = {"matches": tags_list}
 539     response = JsonResponse(result, safe=False)
 540     if callback:
 541         response.content = callback + "(" + response.content + ");"
 542     return response
 543
 544
 545 # =========
 546 # = Admin =
 547 # =========
 548 @login_required
 549 @staff_required
 550 def import_book(request):
 551     """docstring for import_book"""
 552     book_import_form = forms.BookImportForm(request.POST, request.FILES)
 553     if book_import_form.is_valid():
 554         try:
 555             book_import_form.save()
 556         except:
 557             import sys
 558             import pprint
 559             import traceback
 560             info = sys.exc_info()
 561             exception = pprint.pformat(info[1])
 562             tb = '\n'.join(traceback.format_tb(info[2]))
 563             return HttpResponse(
 564                     _("An error occurred: %(exception)s\n\n%(tb)s") % {'exception': exception, 'tb': tb},
 565                     mimetype='text/plain')
 566         return HttpResponse(_("Book imported successfully"))
 567     else:
 568         return HttpResponse(_("Error importing file: %r") % book_import_form.errors)
 569
 570
 571 # info views for API
 572
 573 def book_info(request, book_id, lang='pl'):
 574     book = get_object_or_404(Book, id=book_id)
 575     # set language by hand
 576     translation.activate(lang)
 577     return render_to_response('catalogue/book_info.html', {'book': book}, context_instance=RequestContext(request))
 578
 579
 580 def tag_info(request, tag_id):
 581     tag = get_object_or_404(Tag, id=tag_id)
 582     return HttpResponse(tag.description)
 583
 584
 585 def download_zip(request, format, slug=None):
 586     if format in Book.ebook_formats:
 587         url = Book.zip_format(format)
 588     elif format in ('mp3', 'ogg') and slug is not None:
 589         book = get_object_or_404(Book, slug=slug)
 590         url = book.zip_audiobooks(format)
 591     else:
 592         raise Http404('No format specified for zip package')
 593     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 594
 595
 596 class CustomPDFFormView(AjaxableFormView):
 597     form_class = forms.CustomPDFForm
 598     title = ugettext_lazy('Download custom PDF')
 599     submit = ugettext_lazy('Download')
 600     template = 'catalogue/custom_pdf_form.html'
 601     honeypot = True
 602
 603     def __call__(self, *args, **kwargs):
 604         if settings.NO_CUSTOM_PDF:
 605             raise Http404('Custom PDF is disabled')
 606         return super(CustomPDFFormView, self).__call__(*args, **kwargs)
 607
 608     def form_args(self, request, obj):
 609         """Override to parse view args and give additional args to the form."""
 610         return (obj,), {}
 611
 612     def get_object(self, request, slug, *args, **kwargs):
 613         return get_object_or_404(Book, slug=slug)
 614
 615     def context_description(self, request, obj):
 616         return obj.pretty_title()
 617
 618
 619 ####
 620 # Includes
 621 ####
 622
 623
 624 @ssi_included
 625 def book_mini(request, pk, with_link=True):
 626     # book = get_object_or_404(Book, pk=pk)
 627     try:
 628         book = Book.objects.only('cover_thumb', 'title', 'language', 'slug').get(pk=pk)
 629     except Book.DoesNotExist:
 630         raise Http404
 631     return render(request, 'catalogue/book_mini_box.html', {
 632         'book': book,
 633         'no_link': not with_link,
 634     })
 635
 636
 637 @ssi_included(get_ssi_vars=lambda pk: (lambda ipk: (
 638         ('ssify.get_csrf_token',),
 639         ('social_tags.likes_book', (ipk,)),
 640         ('social_tags.book_shelf_tags', (ipk,)),
 641     ))(ssi_expect(pk, int)))
 642 def book_short(request, pk):
 643     book = get_object_or_404(Book, pk=pk)
 644
 645     return render(request, 'catalogue/book_short.html', {
 646         'book': book,
 647     })
 648
 649
 650 @ssi_included(
 651     get_ssi_vars=lambda pk: book_short.get_ssi_vars(pk) +
 652     (lambda ipk: (
 653         ('social_tags.choose_cite', [ipk]),
 654         ('catalogue_tags.choose_fragment', [ipk], {
 655             'unless': Var('social_tags.choose_cite', [ipk])}),
 656     ))(ssi_expect(pk, int)))
 657 def book_wide(request, pk):
 658     book = get_object_or_404(Book, pk=pk)
 659     extra_info = book.extra_info
 660
 661     return render(request, 'catalogue/book_wide.html', {
 662         'book': book,
 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
 667         'main_link': reverse('book_text', args=[book.slug]) if book.html_file else None,
 668         'extra_info': extra_info,
 669         'hide_about': extra_info.get('about', '').startswith('http://wiki.wolnepodreczniki.pl'),
 670     })
 671
 672
 673 @ssi_included
 674 def fragment_short(request, pk):
 675     fragment = get_object_or_404(Fragment, pk=pk)
 676     return render(request, 'catalogue/fragment_short.html', {'fragment': fragment})
 677
 678
 679 @ssi_included
 680 def fragment_promo(request, pk):
 681     fragment = get_object_or_404(Fragment, pk=pk)
 682     return render(request, 'catalogue/fragment_promo.html', {'fragment': fragment})
 683
 684
 685 @ssi_included
 686 def tag_box(request, pk):
 687     tag = get_object_or_404(Tag, pk=pk)
 688     assert tag.category != 'set'
 689
 690     return render(request, 'catalogue/tag_box.html', {
 691         'tag': tag,
 692     })
 693
 694
 695 @ssi_included
 696 def collection_box(request, pk):
 697     collection = get_object_or_404(Collection, pk=pk)
 698
 699     return render(request, 'catalogue/collection_box.html', {
 700         'collection': collection,
 701     })
 702
 703
 704 def tag_catalogue(request, category):
 705     if category == 'theme':
 706         tags = Tag.objects.usage_for_model(
 707             Fragment, counts=True).filter(category='theme')
 708     else:
 709         tags = list(get_top_level_related_tags((), categories=(category,)))
 710
 711     described_tags = [tag for tag in tags if tag.description]
 712
 713     if len(described_tags) > 4:
 714         best = random.sample(described_tags, 4)
 715     else:
 716         best = described_tags
 717
 718     return render(request, 'catalogue/tag_catalogue.html', {
 719         'tags': tags,
 720         'best': best,
 721         'title': constants.CATEGORIES_NAME_PLURAL[category],
 722         'whole_category': constants.WHOLE_CATEGORY[category],
 723         'active_menu_item': 'theme' if category == 'theme' else None,
 724     })
 725
 726
 727 def collections(request):
 728     objects = Collection.objects.all()
 729
 730     if len(objects) > 3:
 731         best = random.sample(objects, 3)
 732     else:
 733         best = objects
 734
 735     return render(request, 'catalogue/collections.html', {
 736         'objects': objects,
 737         'best': best,
 738     })
 739
 740
 741 def ridero_cover(request, slug):
 742     from librarian.cover import make_cover
 743     wldoc = Book.objects.get(slug=slug).wldocument()
 744     cover = make_cover(wldoc.book_info, width=980, bleed=20, format='PNG')
 745     response = HttpResponse(content_type="image/png")
 746     cover.save(response)
 747     return response
 748
 749
 750 def get_isbn(request, book_format, slug):
 751     book = Book.objects.get(slug=slug)
 752     return HttpResponse(book.extra_info.get('isbn_%s' % book_format))