To maintain your shelves you need to be logged in.
')) - - book = get_object_or_404(models.Book, slug=slug) - - user_sets = models.Tag.objects.filter(category='set', user=request.user) - book_sets = book.tags.filter(category='set', user=request.user) - - if request.method == 'POST': - form = forms.ObjectSetsForm(book, request.user, request.POST) - if form.is_valid(): - old_shelves = list(book.tags.filter(category='set')) - new_shelves = [models.Tag.objects.get(pk=id) for id in form.cleaned_data['set_ids']] - - for shelf in [shelf for shelf in old_shelves if shelf not in new_shelves]: - touch_tag(shelf) - - for shelf in [shelf for shelf in new_shelves if shelf not in old_shelves]: - touch_tag(shelf) - - book.tags = new_shelves + list(book.tags.filter(~Q(category='set') | ~Q(user=request.user))) - if request.is_ajax(): - return JSONResponse('{"msg":"'+_("Shelves were sucessfully saved.
")+'", "after":"close"}') - else: - return HttpResponseRedirect('/') - else: - form = forms.ObjectSetsForm(book, request.user) - new_set_form = forms.NewSetForm() - - return render_to_response('catalogue/book_sets.html', locals(), - context_instance=RequestContext(request)) - - -@login_required -@require_POST -@cache.never_cache -def remove_from_shelf(request, shelf, slug): - book = get_object_or_404(models.Book, slug=slug) - - shelf = get_object_or_404(models.Tag, slug=shelf, category='set', user=request.user) - - if shelf in book.tags: - models.Tag.objects.remove_tag(book, shelf) - touch_tag(shelf) - - return HttpResponse(_('Book was successfully removed from the shelf')) - else: - return HttpResponse(_('This book is not on the shelf')) - - -def collect_books(books): - """ - Returns all real books in collection. - """ - result = [] - for book in books: - if len(book.children.all()) == 0: - result.append(book) - else: - result += collect_books(book.children.all()) - return result - - -@cache.never_cache -def download_shelf(request, slug): - """" - Create a ZIP archive on disk and transmit it in chunks of 8KB, - without loading the whole file into memory. A similar approach can - be used for large dynamic PDF files. - """ - from slughifi import slughifi - import tempfile - import zipfile - - shelf = get_object_or_404(models.Tag, slug=slug, category='set') - - formats = [] - form = forms.DownloadFormatsForm(request.GET) - if form.is_valid(): - formats = form.cleaned_data['formats'] - if len(formats) == 0: - formats = models.Book.ebook_formats - - # Create a ZIP archive - temp = tempfile.TemporaryFile() - archive = zipfile.ZipFile(temp, 'w') - - for book in collect_books(models.Book.tagged.with_all(shelf)): - for ebook_format in models.Book.ebook_formats: - if ebook_format in formats and book.has_media(ebook_format): - filename = book.get_media(ebook_format).path - archive.write(filename, str('%s.%s' % (book.slug, ebook_format))) - archive.close() - - response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed') - response['Content-Disposition'] = 'attachment; filename=%s.zip' % slughifi(shelf.name) - response['Content-Length'] = temp.tell() - - temp.seek(0) - response.write(temp.read()) - return response - - -@cache.never_cache -def shelf_book_formats(request, shelf): - """" - Returns a list of formats of books in shelf. - """ - shelf = get_object_or_404(models.Tag, slug=shelf, category='set') - - formats = {} - for ebook_format in models.Book.ebook_formats: - formats[ebook_format] = False - - for book in collect_books(models.Book.tagged.with_all(shelf)): - for ebook_format in models.Book.ebook_formats: - if book.has_media(ebook_format): - formats[ebook_format] = True - - return HttpResponse(LazyEncoder().encode(formats)) - - -@login_required -@require_POST -@cache.never_cache -def new_set(request): - new_set_form = forms.NewSetForm(request.POST) - if new_set_form.is_valid(): - new_set = new_set_form.save(request.user) - - if request.is_ajax(): - return JSONResponse('{"id":"%d", "name":"%s", "msg":"Shelf %s was successfully created
"}' % (new_set.id, new_set.name, new_set)) - else: - return HttpResponseRedirect('/') - - return HttpResponseRedirect('/') - - -@login_required -@require_POST -@cache.never_cache -def delete_shelf(request, slug): - user_set = get_object_or_404(models.Tag, slug=slug, category='set', user=request.user) - user_set.delete() - - if request.is_ajax(): - return HttpResponse(_('Shelf %s was successfully removed
') % user_set.name) - else: - return HttpResponseRedirect('/') - # ========= # = Admin =