我们从Python开源项目中，提取了以下12个代码示例，用于说明如何使用django.views.decorators.cache.cache_page()。
def get_last_instancetest(instance, url_pk): instancetest = None if url_pk is not None: # find the last test instancetest = instance.instancetest_set.select_related('certificate').filter(url=url_pk).latest('timestamp') if instancetest is not None: # there is one add_viewinfo(instancetest) else: # there is no test instancetest = {} instancetest['result_class'] = 'label-default' instancetest['result_msg'] = 'Untested' instancetest['url'] = url instancetest['instance_pk'] = instance.pk return instancetest # @cache_page(60 * 15)
def cache_qr_code(): """ Decorator that caches the requested page if a settings named 'QR_CODE_CACHE_ALIAS' exists and is not empty or None. """ def decorator(view_func): @wraps(view_func, assigned=available_attrs(view_func)) def _wrapped_view(request, *view_args, **view_kwargs): cache_enabled = request.GET.get('cache_enabled', True) if cache_enabled and hasattr(settings, 'QR_CODE_CACHE_ALIAS') and settings.QR_CODE_CACHE_ALIAS: # We found a cache alias for storing the generate qr code and cache is enabled, use it to cache the # page. timeout = settings.CACHES[settings.QR_CODE_CACHE_ALIAS]['TIMEOUT'] response = cache_page(timeout, cache=settings.QR_CODE_CACHE_ALIAS)(view_func)(request, *view_args, **view_kwargs) else: # No cache alias for storing the generated qr code, call the view as is. response = (view_func)(request, *view_args, **view_kwargs) return response return _wrapped_view return decorator
def cache(): return cache_page(getattr(settings, 'CACHE_TIME', 0)) \ if getattr(settings, 'ENABLE_CACHE', False) else lambda x: x
def index(request): """ ?? :param request: :return: """ post_list = Post.objects.filter(is_pub=True).filter(category__is_pub=True).order_by( '-create_time') # ????????? page = request.GET.get('page') is_paginated = False if post_list.count() > PAGE_SIZE: is_paginated = True paginator = Paginator(post_list, PAGE_SIZE) try: page_obj = paginator.page(page) except PageNotAnInteger: # ??page?????????? page_obj = paginator.page(1) except EmptyPage: # ??page????????????? page_obj = paginator.page(paginator.num_pages) # pagination_data???????????? pagination_data = PaginationBlogPost(paginator=paginator, page_obj=page_obj, is_paginated=is_paginated).pagination_data() pagination_data['post_list'] = page_obj pagination_data['page_obj'] = page_obj pagination_data['paginator'] = paginator return render(request, 'blog/index.html', pagination_data) # @cache_page(60 * 30)
def preview(request, pk): """ ???? :param request: :param pk: ??id :return: """ post = get_object_or_404(Post, pk=pk) return render(request, 'blog/detail.html', {'post': post}) # @cache_page(60 * 30) # @cache_page(60 * 30)
def category(request, pk): """ ?????????????? :param request: :param pk: ???? :return: """ cate = get_object_or_404(Category, pk=pk) if cate.is_pub: post_list = Post.objects.filter(category=cate).filter(is_pub=True).order_by('-create_time') else: raise Http404('????????') page = request.GET.get('page') is_paginated = False if post_list.count() > PAGE_SIZE: is_paginated = True paginator = Paginator(post_list, PAGE_SIZE) try: page_obj = paginator.page(page) except PageNotAnInteger: # ??page?????????? page_obj = paginator.page(1) except EmptyPage: # ??page????????????? page_obj = paginator.page(paginator.num_pages) # pagination_data???????????? pagination_data = PaginationBlogPost(paginator=paginator, page_obj=page_obj, is_paginated=is_paginated).pagination_data() pagination_data['post_list'] = page_obj pagination_data['page_obj'] = page_obj pagination_data['paginator'] = paginator return render(request, 'blog/index.html', pagination_data) # @cache_page(60 * 30)
def healthz(request): """for use with healthchecks. wrapped with `cache_page` to test redis cache.""" # here to make sure DB is working assert Newsletter.objects.exists(), 'no newsletters exist' return HttpResponse('OK')
def dispatch(self, *args, **kwargs): return cache_page(self.get_cache_timeout())( super(CacheMixin, self).dispatch)(*args, **kwargs)
def cache_on_auth(timeout): """Cache the response based on whether or not the user is authenticated. Do NOT use on views that include user-specific information, e.g., CSRF tokens. """ # https://stackoverflow.com/questions/11661503/django-caching-for-authenticated-users-only def _decorator(view_func): @wraps(view_func, assigned=available_attrs(view_func)) def _wrapped_view(request, *args, **kwargs): key_prefix = "_auth_%s_" % request.user.is_authenticated() return cache_page(timeout, key_prefix=key_prefix)(view_func)(request, *args, **kwargs) return _wrapped_view return _decorator
def cache_if_anon(timeout): """Cache the view if the user is not authenticated and there are no messages to display.""" # https://stackoverflow.com/questions/11661503/django-caching-for-authenticated-users-only def _decorator(view_func): @wraps(view_func, assigned=available_attrs(view_func)) def _wrapped_view(request, *args, **kwargs): if request.user.is_authenticated() or messages.get_messages(request): return view_func(request, *args, **kwargs) else: return cache_page(timeout)(view_func)(request, *args, **kwargs) return _wrapped_view return _decorator
def archives(request, year, month): """ ???????????????????? ?????????????? :param request: :param year: :param month: :return: """ post_list = Post.objects.filter( is_pub=True).filter( category__is_pub=True).filter( create_time__year=year, create_time__month=month).order_by( '-create_time') page = request.GET.get('page') is_paginated = False if post_list.count() > PAGE_SIZE: is_paginated = True paginator = Paginator(post_list, PAGE_SIZE) try: page_obj = paginator.page(page) except PageNotAnInteger: # ??page?????????? page_obj = paginator.page(1) except EmptyPage: # ??page????????????? page_obj = paginator.page(paginator.num_pages) # pagination_data???????????? pagination_data = PaginationBlogPost(paginator=paginator, page_obj=page_obj, is_paginated=is_paginated).pagination_data() pagination_data['post_list'] = page_obj pagination_data['page_obj'] = page_obj pagination_data['paginator'] = paginator return render(request, 'blog/index.html', pagination_data) # @cache_page(60 * 30)
def tag(request, pk): """ ???????????? :param request: :param pk: tag?id :return: """ t = get_object_or_404(Tag, pk=pk) if t.is_pub: post_list = Post.objects.filter(tags=t).filter(is_pub=True).filter(category__is_pub=True).order_by( '-create_time') page = request.GET.get('page') is_paginated = False if post_list.count() > PAGE_SIZE: is_paginated = True paginator = Paginator(post_list, PAGE_SIZE) try: page_obj = paginator.page(page) except PageNotAnInteger: # ??page?????????? page_obj = paginator.page(1) except EmptyPage: # ??page????????????? page_obj = paginator.page(paginator.num_pages) # pagination_data???????????? pagination_data = PaginationBlogPost(paginator=paginator, page_obj=page_obj, is_paginated=is_paginated).pagination_data() pagination_data['post_list'] = page_obj pagination_data['page_obj'] = page_obj pagination_data['paginator'] = paginator return render(request, 'blog/index.html', pagination_data) else: # ???????tag???? return HttpResponseForbidden('Forbidden 403') # @cache_page(60 * 60) # ????
