+++ /dev/null
-# -*- coding: utf-8 -*-
-import tempfile
-import zipfile
-
-from django.template import RequestContext
-from django.shortcuts import render_to_response, get_object_or_404
-from django.http import HttpResponse, HttpResponseRedirect, Http404
-from django.core.urlresolvers import reverse
-from django.db.models import Q
-from django.contrib.auth.decorators import login_required
-from django.utils.datastructures import SortedDict
-from django.views.decorators.http import require_POST
-from django.contrib import auth
-from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
-from django.utils import simplejson
-from django.utils.functional import Promise
-from django.utils.encoding import force_unicode
-from django.views.decorators import cache
-
-from catalogue import models
-from catalogue import forms
-from catalogue.utils import split_tags
-from newtagging import views as newtagging_views
-
-
-class LazyEncoder(simplejson.JSONEncoder):
- def default(self, obj):
- if isinstance(obj, Promise):
- return force_unicode(obj)
- return obj
-
-
-def main_page(request):
- if request.user.is_authenticated():
- shelves = models.Tag.objects.filter(category='set', user=request.user)
- new_set_form = forms.NewSetForm()
- extra_where = 'NOT catalogue_tag.category = "set"'
- tags = models.Tag.objects.usage_for_model(models.Book, counts=True, extra={'where': [extra_where]})
- fragment_tags = models.Tag.objects.usage_for_model(models.Fragment, counts=True,
- extra={'where': ['catalogue_tag.category = "theme"'] + [extra_where]})
- categories = split_tags(tags)
-
- form = forms.SearchForm()
- return render_to_response('catalogue/main_page.html', locals(),
- context_instance=RequestContext(request))
-
-
-def book_list(request):
- books = models.Book.objects.all()
- form = forms.SearchForm()
-
- books_by_first_letter = SortedDict()
- for book in books:
- books_by_first_letter.setdefault(book.title[0], []).append(book)
-
- return render_to_response('catalogue/book_list.html', locals(),
- context_instance=RequestContext(request))
-
-
-def tagged_object_list(request, tags=''):
- # Prevent DoS attacks on our database
- if len(tags.split('/')) > 6:
- raise Http404
-
- try:
- tags = models.Tag.get_tag_list(tags)
- except models.Tag.DoesNotExist:
- raise Http404
-
- if len([tag for tag in tags if tag.category == 'book']):
- raise Http404
-
- model = models.Book
- shelf = [tag for tag in tags if tag.category == 'set']
- shelf_is_set = (len(tags) == 1 and tags[0].category == 'set')
- theme_is_set = len([tag for tag in tags if tag.category == 'theme']) > 0
- if theme_is_set:
- model = models.Fragment
-
- user_is_owner = (len(shelf) and request.user.is_authenticated() and request.user == shelf[0].user)
-
- extra_where = 'catalogue_tag.category NOT IN ("set", "book")'
- related_tags = models.Tag.objects.related_for_model(tags, model, counts=True, extra={'where': [extra_where]})
- categories = split_tags(related_tags)
-
- if not (theme_is_set or shelf_is_set):
- model=models.Book.objects.filter(parent=None)
-
- return newtagging_views.tagged_object_list(
- request,
- tag_model=models.Tag,
- queryset_or_model=model,
- tags=tags,
- template_name='catalogue/tagged_object_list.html',
- extra_context = {'categories': categories, 'shelf_is_set': shelf_is_set, 'user_is_owner': user_is_owner },
- )
-
-
-def book_fragments(request, book_slug, theme_slug):
- book = get_object_or_404(models.Book, slug=book_slug)
- book_tag = get_object_or_404(models.Tag, slug='l-' + book_slug)
- theme = get_object_or_404(models.Tag, slug=theme_slug)
- fragments = models.Fragment.tagged.with_all([book_tag, theme])
-
- form = forms.SearchForm()
- return render_to_response('catalogue/book_fragments.html', locals(),
- context_instance=RequestContext(request))
-
-
-def book_detail(request, slug):
- book = get_object_or_404(models.Book, slug=slug)
- book_tag = get_object_or_404(models.Tag, slug = 'l-' + slug)
- tags = list(book.tags.filter(~Q(category='set')))
- categories = split_tags(tags)
- book_children = book.children.all().order_by('parent_number')
- extra_where = 'catalogue_tag.category = "theme"'
- book_themes = models.Tag.objects.related_for_model(book_tag, models.Fragment, counts=True, extra={'where': [extra_where]})
- extra_info = book.get_extra_info_value()
-
- form = forms.SearchForm()
- return render_to_response('catalogue/book_detail.html', locals(),
- context_instance=RequestContext(request))
-
-
-def book_text(request, slug):
- book = get_object_or_404(models.Book, slug=slug)
- book_themes = {}
- for fragment in book.fragments.all():
- for theme in fragment.tags.filter(category='theme'):
- book_themes.setdefault(theme, []).append(fragment)
-
- book_themes = book_themes.items()
- book_themes.sort(key=lambda s: s[0].sort_key)
- return render_to_response('catalogue/book_text.html', locals(),
- context_instance=RequestContext(request))
-
-
-# ==========
-# = Search =
-# ==========
-def _tags_starting_with(prefix, user):
- books = models.Book.objects.filter(title__icontains=prefix)
- tags = models.Tag.objects.filter(name__icontains=prefix)
- if user.is_authenticated():
- tags = tags.filter(~Q(category='book') & (~Q(category='set') | Q(user=user)))
- else:
- tags = tags.filter(~Q(category='book') & ~Q(category='set'))
-
- return list(books) + list(tags)
-
-
-def search(request):
- tags = request.GET.get('tags', '')
- prefix = request.GET.get('q', '')
- # Prefix must have at least 2 characters
- if len(prefix) < 2:
- return HttpResponse('')
-
- try:
- tag_list = models.Tag.get_tag_list(tags)
- except:
- tag_list = []
-
- result = _tags_starting_with(prefix, request.user)
- if len(result) > 0:
- tag = result[0]
- if isinstance(tag, models.Book):
- return HttpResponseRedirect(tag.get_absolute_url())
- else:
- tag_list.append(tag)
-
- return HttpResponseRedirect(reverse('catalogue.views.tagged_object_list',
- kwargs={'tags': '/'.join(tag.slug for tag in tag_list)}
- ))
-
-
-def tags_starting_with(request):
- prefix = request.GET.get('q', '')
- # Prefix must have at least 2 characters
- if len(prefix) < 2:
- return HttpResponse('')
-
- return HttpResponse('\n'.join(tag.name for tag in _tags_starting_with(prefix, request.user)))
-
-
-# ====================
-# = Shelf management =
-# ====================
-@login_required
-@cache.never_cache
-def user_shelves(request):
- shelves = models.Tag.objects.filter(category='set', user=request.user)
- new_set_form = forms.NewSetForm()
- return render_to_response('catalogue/user_shelves.html', locals(),
- context_instance=RequestContext(request))
-
-@cache.never_cache
-def book_sets(request, slug):
- 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 not request.user.is_authenticated():
- return HttpResponse('<p>Aby zarządzać swoimi półkami, musisz się zalogować.</p>')
-
- 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]:
- shelf.book_count -= 1
- shelf.save()
-
- for shelf in [shelf for shelf in new_shelves if shelf not in old_shelves]:
- shelf.book_count += 1
- shelf.save()
-
- book.tags = new_shelves + list(book.tags.filter(~Q(category='set') | ~Q(user=request.user)))
- if request.is_ajax():
- return HttpResponse('<p>Półki zostały zapisane.</p>')
- 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, book):
- book = get_object_or_404(models.Book, slug=book)
- shelf = get_object_or_404(models.Tag, slug=shelf, category='set', user=request.user)
-
- models.Tag.objects.remove_tag(book, shelf)
-
- shelf.book_count -= 1
- shelf.save()
-
- return HttpResponse('Usunieto')
-
-
-@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.
- """
- shelf = get_object_or_404(models.Tag, slug=slug, category='set')
-
- # Create a ZIP archive
- temp = temp = tempfile.TemporaryFile()
- archive = zipfile.ZipFile(temp, 'w')
-
- # Collect all books to include in ZIP archive
- def collect_books(books):
- result = []
- for book in books:
- if len(book.children.all()) == 0:
- result.append(book)
- else:
- result += collect_books(book.children.all())
- return result
-
- for book in collect_books(models.Book.tagged.with_all(shelf)):
- if book.pdf_file:
- filename = book.pdf_file.path
- archive.write(filename, str('%s.pdf' % book.slug))
- if book.odt_file:
- filename = book.odt_file.path
- archive.write(filename, str('%s.odt' % book.slug))
- if book.txt_file:
- filename = book.txt_file.path
- archive.write(filename, str('%s.txt' % book.slug))
- archive.close()
-
- response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed')
- response['Content-Disposition'] = 'attachment; filename=%s.zip' % shelf.sort_key
- response['Content-Length'] = temp.tell()
-
- temp.seek(0)
- response.write(temp.read())
- return response
-
-
-@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 HttpResponse(u'<p>Półka <strong>%s</strong> została utworzona</p>' % 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(u'<p>Półka <strong>%s</strong> została usunięta</p>' % user_set.name)
- else:
- return HttpResponseRedirect('/')
-
-
-# ==================
-# = Authentication =
-# ==================
-@require_POST
-@cache.never_cache
-def login(request):
- form = AuthenticationForm(data=request.POST, prefix='login')
- if form.is_valid():
- auth.login(request, form.get_user())
- response_data = {'success': True, 'errors': {}}
- else:
- response_data = {'success': False, 'errors': form.errors}
- return HttpResponse(LazyEncoder(ensure_ascii=False).encode(response_data))
-
-
-@require_POST
-@cache.never_cache
-def register(request):
- registration_form = UserCreationForm(request.POST, prefix='registration')
- if registration_form.is_valid():
- user = registration_form.save()
- user = auth.authenticate(
- username=registration_form.cleaned_data['username'],
- password=registration_form.cleaned_data['password1']
- )
- auth.login(request, user)
- response_data = {'success': True, 'errors': {}}
- else:
- response_data = {'success': False, 'errors': registration_form.errors}
- return HttpResponse(LazyEncoder(ensure_ascii=False).encode(response_data))
-
-
-@cache.never_cache
-def logout_then_redirect(request):
- auth.logout(request)
- return HttpResponseRedirect(request.GET.get('next', '/'))
-