Update librarian.

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

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index fc27e02..d69e542 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -6,7 +6,9 @@ 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.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.shortcuts import render_to_response, get_object_or_404, redirect
 from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect
 from django.core.urlresolvers import reverse


@@ -16,66 +18,94 @@ 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 _, ugettext_lazy
 from django.utils.http import urlquote_plus
 from django.utils import translation
 from django.utils.translation import ugettext as _, ugettext_lazy

-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.utils import split_tags, MultiQuerySet
 from catalogue import models
 from catalogue import forms
 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
 
 staff_required = user_passes_test(lambda user: user.is_staff)
 from pdcounter import models as pdcounter_models
 from pdcounter import views as pdcounter_views
 from suggest.forms import PublishingSuggestForm
 from picture.models import Picture
 
 staff_required = user_passes_test(lambda user: user.is_staff)

+permanent_cache = get_cache('permanent')

 
 
 
 

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

 def catalogue(request):
 def catalogue(request):

-    tags = models.Tag.objects.exclude(
-        category__in=('set', 'book')).exclude(book_count=0)
-    tags = list(tags)
-    for tag in tags:
-        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))
+    cache_key='catalogue.catalogue'
+    output = permanent_cache.get(cache_key)
+    if output is None:
+        tags = models.Tag.objects.exclude(
+            category__in=('set', 'book')).exclude(book_count=0)
+        tags = list(tags)
+        for tag in tags:
+            tag.count = tag.book_count
+        categories = split_tags(tags)
+        fragment_tags = categories.get('theme', [])
+        collections = models.Collection.objects.all()
+        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))
+        permanent_cache.set(cache_key, output)
+    if request.is_ajax():
+        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',
-        context=None):
+def book_list(request, filter=None, get_filter=None,
+        template_name='catalogue/book_list.html',
+        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:
+        if get_filter:
+            filter = get_filter()
+        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):
     coll = get_object_or_404(models.Collection, slug=slug)
 
 
 def collection(request, slug):
     coll = get_object_or_404(models.Collection, slug=slug)

-    slugs = coll.book_slugs.split()
-    # allow URIs
-    slugs = [slug.rstrip('/').rsplit('/', 1)[-1] if '/' in slug else slug
-                for slug in slugs]
-    return book_list(request, Q(slug__in=slugs),
+    return book_list(request, get_filter=coll.get_query,

                      template_name='catalogue/collection.html',
                      template_name='catalogue/collection.html',

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

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


@@ -93,7 +123,6 @@ def differentiate_tags(request, tags, ambiguous_slugs):
                 context_instance=RequestContext(request))
 
 
                 context_instance=RequestContext(request))
 
 

-@never_cache

 def tagged_object_list(request, tags=''):
     try:
         tags = models.Tag.get_tag_list(tags)
 def tagged_object_list(request, tags=''):
     try:
         tags = models.Tag.get_tag_list(tags)


@@ -202,7 +231,6 @@ def book_fragments(request, slug, theme_slug):
         context_instance=RequestContext(request))
 
 
         context_instance=RequestContext(request))
 
 

-@never_cache

 def book_detail(request, slug):
     try:
         book = models.Book.objects.get(slug=slug)
 def book_detail(request, slug):
     try:
         book = models.Book.objects.get(slug=slug)


@@ -258,13 +286,6 @@ def book_text(request, slug):
 
     if not book.has_html_file():
         raise Http404
 
     if not book.has_html_file():
         raise Http404

-    book_themes = {}
-    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)

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