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 def get_audiobooks(book):
 290     ogg_files = {}
 291     for m in book.media.filter(type='ogg').order_by().iterator():
 292         ogg_files[m.name] = m
 293
 294     audiobooks = []
 295     have_oggs = True
 296     projects = set()
 297     for mp3 in book.media.filter(type='mp3').iterator():
 298         # ogg files are always from the same project
 299         meta = mp3.extra_info
 300         project = meta.get('project')
 301         if not project:
 302             # temporary fallback
 303             project = u'CzytamySłuchając'
 304
 305         projects.add((project, meta.get('funded_by', '')))
 306
 307         media = {'mp3': mp3}
 308
 309         ogg = ogg_files.get(mp3.name)
 310         if ogg:
 311             media['ogg'] = ogg
 312         else:
 313             have_oggs = False
 314         audiobooks.append(media)
 315
 316     projects = sorted(projects)
 317     return audiobooks, projects, have_oggs
 318
 319
 320 # używane w publicznym interfejsie
 321 def player(request, slug):
 322     book = get_object_or_404(Book, slug=slug)
 323     if not book.has_media('mp3'):
 324         raise Http404
 325
 326     audiobooks, projects, have_oggs = get_audiobooks(book)
 327
 328     return render_to_response('catalogue/player.html', {
 329         'book': book,
 330         'audiobook': '',
 331         'audiobooks': audiobooks,
 332         'projects': projects,
 333     }, context_instance=RequestContext(request))
 334
 335
 336 def book_text(request, slug):
 337     book = get_object_or_404(Book, slug=slug)
 338
 339     if not book.has_html_file():
 340         raise Http404
 341     return render_to_response('catalogue/book_text.html', {'book': book}, context_instance=RequestContext(request))
 342
 343
 344 # ==========
 345 # = Search =
 346 # ==========
 347
 348 def _no_diacritics_regexp(query):
 349     """ returns a regexp for searching for a query without diacritics
 350
 351     should be locale-aware """
 352     names = {
 353         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',
 354         u'z': u'zźżŹŻ',
 355         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',
 356         u'ż': u'żŻ'
 357         }
 358
 359     def repl(m):
 360         l = m.group()
 361         return u"(?:%s)" % '|'.join(names[l])
 362
 363     return re.sub(u'[%s]' % (u''.join(names.keys())), repl, query)
 364
 365
 366 def unicode_re_escape(query):
 367     """ Unicode-friendly version of re.escape """
 368     s = list(query)
 369     for i, c in enumerate(query):
 370         if re.match(r'(?u)(\W)', c) and re.match(r'[\x00-\x7e]', c):
 371             if c == "\000":
 372                 s[i] = "\\000"
 373             else:
 374                 s[i] = "\\" + c
 375     return query[:0].join(s)
 376
 377
 378 def _word_starts_with(name, prefix):
 379     """returns a Q object getting models having `name` contain a word
 380     starting with `prefix`
 381
 382     We define word characters as alphanumeric and underscore, like in JS.
 383
 384     Works for MySQL, PostgreSQL, Oracle.
 385     For SQLite, _sqlite* version is substituted for this.
 386     """
 387     kwargs = {}
 388
 389     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 390     # can't use [[:<:]] (word start),
 391     # but we want both `xy` and `(xy` to catch `(xyz)`
 392     kwargs['%s__iregex' % name] = u"(^|[^[:alnum:]_])%s" % prefix
 393
 394     return Q(**kwargs)
 395
 396
 397 def _word_starts_with_regexp(prefix):
 398     prefix = _no_diacritics_regexp(unicode_re_escape(prefix))
 399     return ur"(^|(?<=[^\wąćęłńóśźżĄĆĘŁŃÓŚŹŻ]))%s" % prefix
 400
 401
 402 def _sqlite_word_starts_with(name, prefix):
 403     """ version of _word_starts_with for SQLite
 404
 405     SQLite in Django uses Python re module
 406     """
 407     kwargs = {'%s__iregex' % name: _word_starts_with_regexp(prefix)}
 408     return Q(**kwargs)
 409
 410
 411 if hasattr(settings, 'DATABASES'):
 412     if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':
 413         _word_starts_with = _sqlite_word_starts_with
 414 elif settings.DATABASE_ENGINE == 'sqlite3':
 415     _word_starts_with = _sqlite_word_starts_with
 416
 417
 418 class App:
 419     def __init__(self, name, view):
 420         self.name = name
 421         self._view = view
 422         self.lower = name.lower()
 423         self.category = 'application'
 424
 425     def view(self):
 426         return reverse(*self._view)
 427
 428 _apps = (
 429     App(u'Leśmianator', (u'lesmianator', )),
 430     )
 431
 432
 433 def _tags_starting_with(prefix, user=None):
 434     prefix = prefix.lower()
 435     # PD counter
 436     book_stubs = BookStub.objects.filter(_word_starts_with('title', prefix))
 437     authors = Author.objects.filter(_word_starts_with('name', prefix))
 438
 439     books = Book.objects.filter(_word_starts_with('title', prefix))
 440     tags = Tag.objects.filter(_word_starts_with('name', prefix))
 441     if user and user.is_authenticated():
 442         tags = tags.filter(~Q(category='set') | Q(user=user))
 443     else:
 444         tags = tags.exclude(category='set')
 445
 446     prefix_regexp = re.compile(_word_starts_with_regexp(prefix))
 447     return list(books) + list(tags) + [app for app in _apps if prefix_regexp.search(app.lower)] + list(book_stubs) + \
 448         list(authors)
 449
 450
 451 def _get_result_link(match, tag_list):
 452     if isinstance(match, Tag):
 453         return reverse('catalogue.views.tagged_object_list',
 454                        kwargs={'tags': '/'.join(tag.url_chunk for tag in tag_list + [match])})
 455     elif isinstance(match, App):
 456         return match.view()
 457     else:
 458         return match.get_absolute_url()
 459
 460
 461 def _get_result_type(match):
 462     if isinstance(match, Book) or isinstance(match, BookStub):
 463         match_type = 'book'
 464     else:
 465         match_type = match.category
 466     return match_type
 467
 468
 469 def books_starting_with(prefix):
 470     prefix = prefix.lower()
 471     return Book.objects.filter(_word_starts_with('title', prefix))
 472
 473
 474 def find_best_matches(query, user=None):
 475     """ Finds a Book, Tag, BookStub or Author best matching a query.
 476
 477     Returns a with:
 478       - zero elements when nothing is found,
 479       - one element when a best result is found,
 480       - more then one element on multiple exact matches
 481
 482     Raises a ValueError on too short a query.
 483     """
 484
 485     query = query.lower()
 486     if len(query) < 2:
 487         raise ValueError("query must have at least two characters")
 488
 489     result = tuple(_tags_starting_with(query, user))
 490     # remove pdcounter stuff
 491     book_titles = set(match.pretty_title().lower() for match in result
 492                       if isinstance(match, Book))
 493     authors = set(match.name.lower() for match in result
 494                   if isinstance(match, Tag) and match.category == 'author')
 495     result = tuple(res for res in result if not (
 496                  (isinstance(res, BookStub) and res.pretty_title().lower() in book_titles) or
 497                  (isinstance(res, Author) and res.name.lower() in authors)
 498              ))
 499
 500     exact_matches = tuple(res for res in result if res.name.lower() == query)
 501     if exact_matches:
 502         return exact_matches
 503     else:
 504         return tuple(result)[:1]
 505
 506
 507 def search(request):
 508     tags = request.GET.get('tags', '')
 509     prefix = request.GET.get('q', '')
 510
 511     try:
 512         tag_list = Tag.get_tag_list(tags)
 513     except (Tag.DoesNotExist, Tag.MultipleObjectsReturned, Tag.UrlDeprecationWarning):
 514         tag_list = []
 515
 516     try:
 517         result = find_best_matches(prefix, request.user)
 518     except ValueError:
 519         return render_to_response(
 520             'catalogue/search_too_short.html', {'tags': tag_list, 'prefix': prefix},
 521             context_instance=RequestContext(request))
 522
 523     if len(result) == 1:
 524         return HttpResponseRedirect(_get_result_link(result[0], tag_list))
 525     elif len(result) > 1:
 526         return render_to_response(
 527             'catalogue/search_multiple_hits.html',
 528             {
 529                 'tags': tag_list, 'prefix': prefix,
 530                 'results': ((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)
 531             },
 532             context_instance=RequestContext(request))
 533     else:
 534         form = PublishingSuggestForm(initial={"books": prefix + ", "})
 535         return render_to_response(
 536             'catalogue/search_no_hits.html',
 537             {'tags': tag_list, 'prefix': prefix, "pubsuggest_form": form},
 538             context_instance=RequestContext(request))
 539
 540
 541 def tags_starting_with(request):
 542     prefix = request.GET.get('q', '')
 543     # Prefix must have at least 2 characters
 544     if len(prefix) < 2:
 545         return HttpResponse('')
 546     tags_list = []
 547     result = ""
 548     for tag in _tags_starting_with(prefix, request.user):
 549         if tag.name not in tags_list:
 550             result += "\n" + tag.name
 551             tags_list.append(tag.name)
 552     return HttpResponse(result)
 553
 554
 555 def json_tags_starting_with(request, callback=None):
 556     # Callback for JSONP
 557     prefix = request.GET.get('q', '')
 558     callback = request.GET.get('callback', '')
 559     # Prefix must have at least 2 characters
 560     if len(prefix) < 2:
 561         return HttpResponse('')
 562     tags_list = []
 563     for tag in _tags_starting_with(prefix, request.user):
 564         if tag.name not in tags_list:
 565             tags_list.append(tag.name)
 566     if request.GET.get('mozhint', ''):
 567         result = [prefix, tags_list]
 568     else:
 569         result = {"matches": tags_list}
 570     response = JsonResponse(result, safe=False)
 571     if callback:
 572         response.content = callback + "(" + response.content + ");"
 573     return response
 574
 575
 576 # =========
 577 # = Admin =
 578 # =========
 579 @login_required
 580 @staff_required
 581 def import_book(request):
 582     """docstring for import_book"""
 583     book_import_form = forms.BookImportForm(request.POST, request.FILES)
 584     if book_import_form.is_valid():
 585         try:
 586             book_import_form.save()
 587         except:
 588             import sys
 589             import pprint
 590             import traceback
 591             info = sys.exc_info()
 592             exception = pprint.pformat(info[1])
 593             tb = '\n'.join(traceback.format_tb(info[2]))
 594             return HttpResponse(
 595                     _("An error occurred: %(exception)s\n\n%(tb)s") % {'exception': exception, 'tb': tb},
 596                     mimetype='text/plain')
 597         return HttpResponse(_("Book imported successfully"))
 598     else:
 599         return HttpResponse(_("Error importing file: %r") % book_import_form.errors)
 600
 601
 602 # info views for API
 603
 604 def book_info(request, book_id, lang='pl'):
 605     book = get_object_or_404(Book, id=book_id)
 606     # set language by hand
 607     translation.activate(lang)
 608     return render_to_response('catalogue/book_info.html', {'book': book}, context_instance=RequestContext(request))
 609
 610
 611 def tag_info(request, tag_id):
 612     tag = get_object_or_404(Tag, id=tag_id)
 613     return HttpResponse(tag.description)
 614
 615
 616 def download_zip(request, format, slug=None):
 617     if format in Book.ebook_formats:
 618         url = Book.zip_format(format)
 619     elif format in ('mp3', 'ogg') and slug is not None:
 620         book = get_object_or_404(Book, slug=slug)
 621         url = book.zip_audiobooks(format)
 622     else:
 623         raise Http404('No format specified for zip package')
 624     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 625
 626
 627 class CustomPDFFormView(AjaxableFormView):
 628     form_class = forms.CustomPDFForm
 629     title = ugettext_lazy('Download custom PDF')
 630     submit = ugettext_lazy('Download')
 631     template = 'catalogue/custom_pdf_form.html'
 632     honeypot = True
 633
 634     def __call__(self, *args, **kwargs):
 635         if settings.NO_CUSTOM_PDF:
 636             raise Http404('Custom PDF is disabled')
 637         return super(CustomPDFFormView, self).__call__(*args, **kwargs)
 638
 639     def form_args(self, request, obj):
 640         """Override to parse view args and give additional args to the form."""
 641         return (obj,), {}
 642
 643     def get_object(self, request, slug, *args, **kwargs):
 644         return get_object_or_404(Book, slug=slug)
 645
 646     def context_description(self, request, obj):
 647         return obj.pretty_title()
 648
 649
 650 ####
 651 # Includes
 652 ####
 653
 654
 655 @ssi_included
 656 def book_mini(request, pk, with_link=True):
 657     # book = get_object_or_404(Book, pk=pk)
 658     try:
 659         book = Book.objects.only('cover_thumb', 'title', 'language', 'slug').get(pk=pk)
 660     except Book.DoesNotExist:
 661         raise Http404
 662     return render(request, 'catalogue/book_mini_box.html', {
 663         'book': book,
 664         'no_link': not with_link,
 665     })
 666
 667
 668 @ssi_included(get_ssi_vars=lambda pk: (lambda ipk: (
 669         ('ssify.get_csrf_token',),
 670         ('social_tags.likes_book', (ipk,)),
 671         ('social_tags.book_shelf_tags', (ipk,)),
 672     ))(ssi_expect(pk, int)))
 673 def book_short(request, pk):
 674     book = get_object_or_404(Book, pk=pk)
 675     stage_note, stage_note_url = book.stage_note()
 676     audiobooks, projects, have_oggs = get_audiobooks(book)
 677
 678     return render(request, 'catalogue/book_short.html', {
 679         'book': book,
 680         'has_audio': book.has_media('mp3'),
 681         'main_link': book.get_absolute_url(),
 682         'parents': book.parents(),
 683         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 684         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 685         'stage_note': stage_note,
 686         'stage_note_url': stage_note_url,
 687         'audiobooks': audiobooks,
 688         'have_oggs': have_oggs,
 689     })
 690
 691
 692 @ssi_included(
 693     get_ssi_vars=lambda pk: book_short.get_ssi_vars(pk) +
 694     (lambda ipk: (
 695         ('social_tags.choose_cite', [ipk]),
 696         ('catalogue_tags.choose_fragment', [ipk], {
 697             'unless': Var('social_tags.choose_cite', [ipk])}),
 698     ))(ssi_expect(pk, int)))
 699 def book_wide(request, pk):
 700     book = get_object_or_404(Book, pk=pk)
 701     stage_note, stage_note_url = book.stage_note()
 702     extra_info = book.extra_info
 703     audiobooks, projects, have_oggs = get_audiobooks(book)
 704
 705     return render(request, 'catalogue/book_wide.html', {
 706         'book': book,
 707         'has_audio': book.has_media('mp3'),
 708         'parents': book.parents(),
 709         'tags': split_tags(book.tags.exclude(category__in=('set', 'theme'))),
 710         'show_lang': book.language_code() != settings.LANGUAGE_CODE,
 711         'stage_note': stage_note,
 712         'stage_note_url': stage_note_url,
 713
 714         'main_link': reverse('book_text', args=[book.slug]) if book.html_file else None,
 715         'extra_info': extra_info,
 716         'hide_about': extra_info.get('about', '').startswith('http://wiki.wolnepodreczniki.pl'),
 717         'audiobooks': audiobooks,
 718         'have_oggs': have_oggs,
 719     })
 720
 721
 722 @ssi_included
 723 def fragment_short(request, pk):
 724     fragment = get_object_or_404(Fragment, pk=pk)
 725     return render(request, 'catalogue/fragment_short.html', {'fragment': fragment})
 726
 727
 728 @ssi_included
 729 def fragment_promo(request, pk):
 730     fragment = get_object_or_404(Fragment, pk=pk)
 731     return render(request, 'catalogue/fragment_promo.html', {'fragment': fragment})
 732
 733
 734 @ssi_included
 735 def tag_box(request, pk):
 736     tag = get_object_or_404(Tag, pk=pk)
 737     assert tag.category != 'set'
 738
 739     return render(request, 'catalogue/tag_box.html', {
 740         'tag': tag,
 741     })
 742
 743
 744 @ssi_included
 745 def collection_box(request, pk):
 746     collection = get_object_or_404(Collection, pk=pk)
 747
 748     return render(request, 'catalogue/collection_box.html', {
 749         'collection': collection,
 750     })
 751
 752
 753 def tag_catalogue(request, category):
 754     if category == 'theme':
 755         tags = Tag.objects.usage_for_model(
 756             Fragment, counts=True).filter(category='theme')
 757     else:
 758         tags = list(get_top_level_related_tags((), categories=(category,)))
 759
 760     described_tags = [tag for tag in tags if tag.description]
 761
 762     if len(described_tags) > 4:
 763         best = random.sample(described_tags, 4)
 764     else:
 765         best = described_tags
 766
 767     return render(request, 'catalogue/tag_catalogue.html', {
 768         'tags': tags,
 769         'best': best,
 770         'title': constants.CATEGORIES_NAME_PLURAL[category],
 771         'whole_category': constants.WHOLE_CATEGORY[category],
 772         'active_menu_item': 'theme' if category == 'theme' else None,
 773     })
 774
 775
 776 def collections(request):
 777     objects = Collection.objects.all()
 778
 779     if len(objects) > 3:
 780         best = random.sample(objects, 3)
 781     else:
 782         best = objects
 783
 784     return render(request, 'catalogue/collections.html', {
 785         'objects': objects,
 786         'best': best,
 787     })
 788
 789
 790 def ridero_cover(request, slug):
 791     from librarian.cover import DefaultEbookCover
 792     wldoc = Book.objects.get(slug=slug).wldocument()
 793     cover = DefaultEbookCover(wldoc.book_info, width=980, bleed=20, format='PNG')
 794     response = HttpResponse(content_type="image/png")
 795     cover.save(response)
 796     return response