catalogue view: cache vary on is_ajax

[wolnelektury.git] / apps / catalogue / views.py

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index fad7775..e61feb6 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -6,8 +6,10 @@ import re
 import itertools
 
 from django.conf import settings
 import itertools
 
 from django.conf import settings

+from django.core.cache import get_cache

 from django.template import RequestContext
 from django.template import RequestContext

-from django.shortcuts import render_to_response, get_object_or_404
+from django.template.loader import render_to_string
+from django.shortcuts import render_to_response, get_object_or_404, redirect

 from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect
 from django.core.urlresolvers import reverse
 from django.db.models import Q
 from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect
 from django.core.urlresolvers import reverse
 from django.db.models import Q


@@ -15,25 +17,25 @@ from django.contrib.auth.decorators import login_required, user_passes_test
 from django.utils.datastructures import SortedDict
 from django.utils.http import urlquote_plus
 from django.utils import translation
 from django.utils.datastructures import SortedDict
 from django.utils.http import urlquote_plus
 from django.utils import translation

-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext as _, ugettext_lazy

 from django.views.decorators.cache import never_cache
 from django.views.decorators.cache import never_cache

+from django.views.decorators.vary import vary_on_headers

 
 from ajaxable.utils import JSONResponse, AjaxableFormView
 
 from ajaxable.utils import JSONResponse, AjaxableFormView

-

 from catalogue import models
 from catalogue import forms
 from catalogue import models
 from catalogue import forms

-from catalogue.utils import (split_tags, AttachmentHttpResponse,
-    async_build_pdf, MultiQuerySet)
+from catalogue.utils import split_tags, MultiQuerySet
+from catalogue.templatetags.catalogue_tags import tag_list, collection_list

 from pdcounter import models as pdcounter_models
 from pdcounter import views as pdcounter_views
 from suggest.forms import PublishingSuggestForm
 from picture.models import Picture
 
 from pdcounter import models as pdcounter_models
 from pdcounter import views as pdcounter_views
 from suggest.forms import PublishingSuggestForm
 from picture.models import Picture
 

-from os import path
-

 staff_required = user_passes_test(lambda user: user.is_staff)
 staff_required = user_passes_test(lambda user: user.is_staff)

+permanent_cache = get_cache('permanent')

 
 
 
 

+@vary_on_headers('X-Requested-With')

 def catalogue(request):
     tags = models.Tag.objects.exclude(
         category__in=('set', 'book')).exclude(book_count=0)
 def catalogue(request):
     tags = models.Tag.objects.exclude(
         category__in=('set', 'book')).exclude(book_count=0)


@@ -42,33 +44,56 @@ def catalogue(request):
         tag.count = tag.book_count
     categories = split_tags(tags)
     fragment_tags = categories.get('theme', [])
         tag.count = tag.book_count
     categories = split_tags(tags)
     fragment_tags = categories.get('theme', [])

-
-    return render_to_response('catalogue/catalogue.html', locals(),
-        context_instance=RequestContext(request))
+    collections = models.Collection.objects.all()
+
+    if request.is_ajax():
+        render_tag_list = lambda x: render_to_string(
+            'catalogue/tag_list.html', tag_list(x))
+        output = {'theme': render_tag_list(fragment_tags)}
+        for category, tags in categories.items():
+            output[category] = render_tag_list(tags)
+        output['collections'] = render_to_string(
+            'catalogue/collection_list.html', collection_list(collections))
+        return JSONResponse(output)
+    else:
+        return render_to_response('catalogue/catalogue.html', locals(),
+            context_instance=RequestContext(request))

 
 
 def book_list(request, filter=None, template_name='catalogue/book_list.html',
 
 
 def book_list(request, filter=None, template_name='catalogue/book_list.html',

-        context=None):
+        nav_template_name='catalogue/snippets/book_list_nav.html',
+        list_template_name='catalogue/snippets/book_list.html',
+        cache_key='catalogue.book_list',
+        context=None,
+        ):

     """ generates a listing of all books, optionally filtered with a test function """
     """ generates a listing of all books, optionally filtered with a test function """

-
-    books_by_author, orphans, books_by_parent = models.Book.book_list(filter)
-    books_nav = SortedDict()
-    for tag in books_by_author:
-        if books_by_author[tag]:
-            books_nav.setdefault(tag.sort_key[0], []).append(tag)
-
+    cached = permanent_cache.get(cache_key)
+    if cached is not None:
+        rendered_nav, rendered_book_list = cached
+    else:
+        books_by_author, orphans, books_by_parent = models.Book.book_list(filter)
+        books_nav = SortedDict()
+        for tag in books_by_author:
+            if books_by_author[tag]:
+                books_nav.setdefault(tag.sort_key[0], []).append(tag)
+        rendered_nav = render_to_string(nav_template_name, locals())
+        rendered_book_list = render_to_string(list_template_name, locals())
+        permanent_cache.set(cache_key, (rendered_nav, rendered_book_list))

     return render_to_response(template_name, locals(),
         context_instance=RequestContext(request))
 
 
 def audiobook_list(request):
     return book_list(request, Q(media__type='mp3') | Q(media__type='ogg'),
     return render_to_response(template_name, locals(),
         context_instance=RequestContext(request))
 
 
 def audiobook_list(request):
     return book_list(request, Q(media__type='mp3') | Q(media__type='ogg'),

-                     template_name='catalogue/audiobook_list.html')
+                     template_name='catalogue/audiobook_list.html',
+                     list_template_name='catalogue/snippets/audiobook_list.html',
+                     cache_key='catalogue.audiobook_list')

 
 
 def daisy_list(request):
     return book_list(request, Q(media__type='daisy'),
 
 
 def daisy_list(request):
     return book_list(request, Q(media__type='daisy'),

-                     template_name='catalogue/daisy_list.html')
+                     template_name='catalogue/daisy_list.html',
+                     cache_key='catalogue.daisy_list')

 
 
 def collection(request, slug):
 
 
 def collection(request, slug):


@@ -79,6 +104,7 @@ def collection(request, slug):
                 for slug in slugs]
     return book_list(request, Q(slug__in=slugs),
                      template_name='catalogue/collection.html',
                 for slug in slugs]
     return book_list(request, Q(slug__in=slugs),
                      template_name='catalogue/collection.html',

+                     cache_key='catalogue.collection:%s' % coll.slug,

                      context={'collection': coll})
 
 
                      context={'collection': coll})
 
 


@@ -135,13 +161,14 @@ def tagged_object_list(request, tags=''):
 
         if shelf_tags:
             books = models.Book.tagged.with_all(shelf_tags).order_by()
 
         if shelf_tags:
             books = models.Book.tagged.with_all(shelf_tags).order_by()

-            l_tags = models.Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books])
+            l_tags = models.Tag.objects.filter(category='book',
+                slug__in=[book.book_tag_slug() for book in books.iterator()])

             fragments = models.Fragment.tagged.with_any(l_tags, fragments)
 
         # newtagging goes crazy if we just try:
         #related_tags = models.Tag.objects.usage_for_queryset(fragments, counts=True,
         #                    extra={'where': ["catalogue_tag.category != 'book'"]})
             fragments = models.Fragment.tagged.with_any(l_tags, fragments)
 
         # newtagging goes crazy if we just try:
         #related_tags = models.Tag.objects.usage_for_queryset(fragments, counts=True,
         #                    extra={'where': ["catalogue_tag.category != 'book'"]})

-        fragment_keys = [fragment.pk for fragment in fragments]
+        fragment_keys = [fragment.pk for fragment in fragments.iterator()]

         if fragment_keys:
             related_tags = models.Fragment.tags.usage(counts=True,
                                 filters={'pk__in': fragment_keys},
         if fragment_keys:
             related_tags = models.Fragment.tags.usage(counts=True,
                                 filters={'pk__in': fragment_keys},


@@ -159,7 +186,7 @@ def tagged_object_list(request, tags=''):
         # get related tags from `tag_counter` and `theme_counter`
         related_counts = {}
         tags_pks = [tag.pk for tag in tags]
         # get related tags from `tag_counter` and `theme_counter`
         related_counts = {}
         tags_pks = [tag.pk for tag in tags]

-        for book in objects:
+        for book in objects.iterator():

             for tag_pk, value in itertools.chain(book.tag_counter.iteritems(), book.theme_counter.iteritems()):
                 if tag_pk in tags_pks:
                     continue
             for tag_pk, value in itertools.chain(book.tag_counter.iteritems(), book.theme_counter.iteritems()):
                 if tag_pk in tags_pks:
                     continue


@@ -222,15 +249,15 @@ def player(request, slug):
         raise Http404
 
     ogg_files = {}
         raise Http404
 
     ogg_files = {}

-    for m in book.media.filter(type='ogg').order_by():
+    for m in book.media.filter(type='ogg').order_by().iterator():

         ogg_files[m.name] = m
 
     audiobooks = []
     have_oggs = True
     projects = set()
         ogg_files[m.name] = m
 
     audiobooks = []
     have_oggs = True
     projects = set()

-    for mp3 in book.media.filter(type='mp3'):
+    for mp3 in book.media.filter(type='mp3').iterator():

         # ogg files are always from the same project
         # ogg files are always from the same project

-        meta = mp3.get_extra_info_value()
+        meta = mp3.extra_info

         project = meta.get('project')
         if not project:
             # temporary fallback
         project = meta.get('project')
         if not project:
             # temporary fallback


@@ -249,7 +276,7 @@ def player(request, slug):
 
     projects = sorted(projects)
 
 
     projects = sorted(projects)
 

-    extra_info = book.get_extra_info_value()
+    extra_info = book.extra_info

 
     return render_to_response('catalogue/player.html', locals(),
         context_instance=RequestContext(request))
 
     return render_to_response('catalogue/player.html', locals(),
         context_instance=RequestContext(request))


@@ -261,12 +288,13 @@ def book_text(request, slug):
     if not book.has_html_file():
         raise Http404
     book_themes = {}
     if not book.has_html_file():
         raise Http404
     book_themes = {}

-    for fragment in book.fragments.all():
-        for theme in fragment.tags.filter(category='theme'):
+    for fragment in book.fragments.all().iterator():
+        for theme in fragment.tags.filter(category='theme').iterator():

             book_themes.setdefault(theme, []).append(fragment)
 
     book_themes = book_themes.items()
     book_themes.sort(key=lambda s: s[0].sort_key)
             book_themes.setdefault(theme, []).append(fragment)
 
     book_themes = book_themes.items()
     book_themes.sort(key=lambda s: s[0].sort_key)

+    related = book.related_info()

     return render_to_response('catalogue/book_text.html', locals(),
         context_instance=RequestContext(request))
 
     return render_to_response('catalogue/book_text.html', locals(),
         context_instance=RequestContext(request))
 


@@ -531,43 +559,23 @@ def download_zip(request, format, slug=None):
     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 
 
     return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
 
 

-def download_custom_pdf(request, slug, method='GET'):
-    book = get_object_or_404(models.Book, slug=slug)
-
-    if request.method == method:
-        form = forms.CustomPDFForm(method == 'GET' and request.GET or request.POST)
-        if form.is_valid():
-            cust = form.customizations
-            pdf_file = models.get_customized_pdf_path(book, cust)
-
-            if not path.exists(pdf_file):
-                result = async_build_pdf.delay(book.id, cust, pdf_file)
-                result.wait()
-            return AttachmentHttpResponse(file_name=("%s.pdf" % book.slug), file_path=pdf_file, mimetype="application/pdf")
-        else:
-            raise Http404(_('Incorrect customization options for PDF'))
-    else:
-        raise Http404(_('Bad method'))
-
-

 class CustomPDFFormView(AjaxableFormView):
     form_class = forms.CustomPDFForm
 class CustomPDFFormView(AjaxableFormView):
     form_class = forms.CustomPDFForm

-    title = _('Download custom PDF')
-    submit = _('Download')
+    title = ugettext_lazy('Download custom PDF')
+    submit = ugettext_lazy('Download')
+    honeypot = True
+
+    def __call__(self, *args, **kwargs):
+        if settings.NO_CUSTOM_PDF:
+            raise Http404('Custom PDF is disabled')
+        return super(CustomPDFFormView, self).__call__(*args, **kwargs)

 
 

-    def __call__(self, request):
-        from copy import copy
-        if request.method == 'POST':
-            request.GET = copy(request.GET)
-            request.GET['next'] = "%s?%s" % (reverse('catalogue.views.download_custom_pdf', args=[request.GET.get('slug')]),
-                                             request.POST.urlencode())
-        return super(CustomPDFFormView, self).__call__(request)
+    def form_args(self, request, obj):
+        """Override to parse view args and give additional args to the form."""
+        return (obj,), {}

 
 

-    def get_object(self, request):
-        return get_object_or_404(models.Book, slug=request.GET.get('slug'))
+    def get_object(self, request, slug, *args, **kwargs):
+        return get_object_or_404(models.Book, slug=slug)

 
     def context_description(self, request, obj):
         return obj.pretty_title()
 
     def context_description(self, request, obj):
         return obj.pretty_title()

-
-    def success(self, *args):
-        pass