diff options
Diffstat (limited to 'actionpack/lib/action_controller')
| -rw-r--r-- | actionpack/lib/action_controller/metal/conditional_get.rb | 78 | ||||
| -rw-r--r-- | actionpack/lib/action_controller/test_case.rb | 21 |
2 files changed, 78 insertions, 21 deletions
diff --git a/actionpack/lib/action_controller/metal/conditional_get.rb b/actionpack/lib/action_controller/metal/conditional_get.rb index febbc72861..858870d8b8 100644 --- a/actionpack/lib/action_controller/metal/conditional_get.rb +++ b/actionpack/lib/action_controller/metal/conditional_get.rb @@ -57,15 +57,25 @@ module ActionController # This will render the show template if the request isn't sending a matching ETag or # If-Modified-Since header and just a <tt>304 Not Modified</tt> response if there's a match. # - # You can also just pass a record where +last_modified+ will be set by calling - # +updated_at+ and the +etag+ by passing the object itself. + # You can also just pass a record. In this case +last_modified+ will be set + # by calling +updated_at+ and +etag+ by passing the object itself. # # def show # @article = Article.find(params[:id]) # fresh_when(@article) # end # - # When passing a record, you can still set whether the public header: + # You can also pass an object that responds to +maximum+, such as a + # collection of active records. In this case +last_modified+ will be set by + # calling +maximum(:updated_at)+ on the collection (the timestamp of the + # most recently updated record) and the +etag+ by passing the object itself. + # + # def index + # @articles = Article.all + # fresh_when(@articles) + # end + # + # When passing a record or a collection, you can still set the public header: # # def show # @article = Article.find(params[:id]) @@ -77,18 +87,16 @@ module ActionController # # before_action { fresh_when @article, template: 'widgets/show' } # - def fresh_when(record_or_options, additional_options = {}) - if record_or_options.is_a? Hash - options = record_or_options - options.assert_valid_keys(:etag, :last_modified, :public, :template) - else - record = record_or_options - options = { etag: record, last_modified: record.try(:updated_at) }.merge!(additional_options) + def fresh_when(object = nil, etag: object, last_modified: nil, public: false, template: nil) + last_modified ||= object.try(:updated_at) || object.try(:maximum, :updated_at) + + if etag || template + response.etag = combine_etags(etag: etag, last_modified: last_modified, + public: public, template: template) end - response.etag = combine_etags(options) if options[:etag] || options[:template] - response.last_modified = options[:last_modified] if options[:last_modified] - response.cache_control[:public] = true if options[:public] + response.last_modified = last_modified if last_modified + response.cache_control[:public] = true if public head :not_modified if request.fresh?(response) end @@ -123,8 +131,8 @@ module ActionController # end # end # - # You can also just pass a record where +last_modified+ will be set by calling - # +updated_at+ and the +etag+ by passing the object itself. + # You can also just pass a record. In this case +last_modified+ will be set + # by calling +updated_at+ and +etag+ by passing the object itself. # # def show # @article = Article.find(params[:id]) @@ -137,7 +145,23 @@ module ActionController # end # end # - # When passing a record, you can still set whether the public header: + # You can also pass an object that responds to +maximum+, such as a + # collection of active records. In this case +last_modified+ will be set by + # calling +maximum(:updated_at)+ on the collection (the timestamp of the + # most recently updated record) and the +etag+ by passing the object itself. + # + # def index + # @articles = Article.all + # + # if stale?(@articles) + # @statistics = @articles.really_expensive_call + # respond_to do |format| + # # all the supported formats + # end + # end + # end + # + # When passing a record or a collection, you can still set the public header: # # def show # @article = Article.find(params[:id]) @@ -157,8 +181,8 @@ module ActionController # super if stale? @article, template: 'widgets/show' # end # - def stale?(record_or_options, additional_options = {}) - fresh_when(record_or_options, additional_options) + def stale?(object = nil, etag: object, last_modified: nil, public: nil, template: nil) + fresh_when(object, etag: etag, last_modified: last_modified, public: public, template: template) !request.fresh?(response) end @@ -191,6 +215,24 @@ module ActionController response.cache_control.replace(:no_cache => true) end + # Cache or yield the block. The cache is supposed to never expire. + # + # You can use this method when you have a HTTP response that never changes, + # and the browser and proxies should cache it indefinitely. + # + # * +public+: By default, HTTP responses are private, cached only on the + # user's web browser. To allow proxies to cache the response, set +true+ to + # indicate that they can serve the cached response to all users. + # + # * +version+: the version passed as a key for the cache. + def http_cache_forever(public: false, version: 'v1') + expires_in 100.years, public: public + + yield if stale?(etag: "#{version}-#{request.fullpath}", + last_modified: Time.parse('2011-01-01').utc, + public: public) + end + private def combine_etags(options) etags = etaggers.map { |etagger| instance_exec(options, &etagger) }.compact diff --git a/actionpack/lib/action_controller/test_case.rb b/actionpack/lib/action_controller/test_case.rb index b05700aace..4782991463 100644 --- a/actionpack/lib/action_controller/test_case.rb +++ b/actionpack/lib/action_controller/test_case.rb @@ -546,8 +546,13 @@ module ActionController end def xml_http_request(*args) + ActiveSupport::Deprecation.warn(<<-MSG.strip_heredoc) + xhr and xml_http_request methods are deprecated in favor of + `get :index, xhr: true` and `post :create, xhr: true` + MSG + @request.env['HTTP_X_REQUESTED_WITH'] = 'XMLHttpRequest' - @request.env['HTTP_ACCEPT'] ||= [Mime::JS, Mime::HTML, Mime::XML, 'text/xml', Mime::ALL].join(', ') + @request.env['HTTP_ACCEPT'] ||= [Mime::JS, Mime::HTML, Mime::XML, 'text/xml', Mime::ALL].join(', ') __send__(*args).tap do @request.env.delete 'HTTP_X_REQUESTED_WITH' @request.env.delete 'HTTP_ACCEPT' @@ -600,7 +605,7 @@ module ActionController check_required_ivars if kwarg_request?(*args) - parameters, session, body, flash, http_method, format = args[0].values_at(:params, :session, :body, :flash, :method, :format) + parameters, session, body, flash, http_method, format, xhr = args[0].values_at(:params, :session, :body, :flash, :method, :format, :xhr) else http_method, parameters, session, flash = args format = nil @@ -656,6 +661,11 @@ module ActionController @request.session.update(session) if session @request.flash.update(flash || {}) + if xhr + @request.env['HTTP_X_REQUESTED_WITH'] = 'XMLHttpRequest' + @request.env['HTTP_ACCEPT'] ||= [Mime::JS, Mime::HTML, Mime::XML, 'text/xml', Mime::ALL].join(', ') + end + @controller.request = @request @controller.response = @response @@ -681,6 +691,11 @@ module ActionController @request.session.delete('flash') end + if xhr + @request.env.delete 'HTTP_X_REQUESTED_WITH' + @request.env.delete 'HTTP_ACCEPT' + end + @response end @@ -741,7 +756,7 @@ module ActionController end end - REQUEST_KWARGS = %i(params session flash method body) + REQUEST_KWARGS = %i(params session flash method body xhr) def kwarg_request?(*args) args[0].respond_to?(:keys) && ( (args[0].key?(:format) && args[0].keys.size == 1) || |