diff options
Diffstat (limited to 'actionview/lib/action_view/renderer')
6 files changed, 173 insertions, 94 deletions
diff --git a/actionview/lib/action_view/renderer/abstract_renderer.rb b/actionview/lib/action_view/renderer/abstract_renderer.rb index 20b2523cac..475452f1bb 100644 --- a/actionview/lib/action_view/renderer/abstract_renderer.rb +++ b/actionview/lib/action_view/renderer/abstract_renderer.rb @@ -17,7 +17,7 @@ module ActionView # that new object is called in turn. This abstracts the setup and rendering # into a separate classes for partials and templates. class AbstractRenderer #:nodoc: - delegate :find_template, :find_file, :template_exists?, :any_templates?, :with_fallbacks, :with_layout_format, :formats, to: :@lookup_context + delegate :template_exists?, :any_templates?, :formats, to: :@lookup_context def initialize(lookup_context) @lookup_context = lookup_context @@ -27,6 +27,53 @@ module ActionView raise NotImplementedError end + class RenderedCollection # :nodoc: + def self.empty(format) + EmptyCollection.new format + end + + attr_reader :rendered_templates + + def initialize(rendered_templates, spacer) + @rendered_templates = rendered_templates + @spacer = spacer + end + + def body + @rendered_templates.map(&:body).join(@spacer.body).html_safe + end + + def format + rendered_templates.first.format + end + + class EmptyCollection + attr_reader :format + + def initialize(format) + @format = format + end + + def body; nil; end + end + end + + class RenderedTemplate # :nodoc: + attr_reader :body, :layout, :template + + def initialize(body, layout, template) + @body = body + @layout = layout + @template = template + end + + def format + template.format + end + + EMPTY_SPACER = Struct.new(:body).new + end + private def extract_details(options) # :doc: @@ -38,8 +85,6 @@ module ActionView end def instrument(name, **options) # :doc: - options[:identifier] ||= (@template && @template.identifier) || @path - ActiveSupport::Notifications.instrument("render_#{name}.action_view", options) do |payload| yield payload end @@ -51,5 +96,13 @@ module ActionView @lookup_context.formats = formats | @lookup_context.formats end + + def build_rendered_template(content, template, layout = nil) + RenderedTemplate.new content, layout, template + end + + def build_rendered_collection(templates, spacer) + RenderedCollection.new templates, spacer + end end end diff --git a/actionview/lib/action_view/renderer/partial_renderer.rb b/actionview/lib/action_view/renderer/partial_renderer.rb index cb850d75ee..ed8d5cf54e 100644 --- a/actionview/lib/action_view/renderer/partial_renderer.rb +++ b/actionview/lib/action_view/renderer/partial_renderer.rb @@ -295,43 +295,60 @@ module ActionView end def render(context, options, block) - setup(context, options, block) - @template = find_partial + as = as_variable(options) + setup(context, options, as, block) - @lookup_context.rendered_format ||= begin - if @template && @template.formats.present? - @template.formats.first + if @path + if @has_object || @collection + @variable, @variable_counter, @variable_iteration = retrieve_variable(@path, as) + @template_keys = retrieve_template_keys(@variable) else - formats.first + @template_keys = @locals.keys + end + template = find_partial(@path, @template_keys) + @variable ||= template.variable + else + if options[:cached] + raise NotImplementedError, "render caching requires a template. Please specify a partial when rendering" end + template = nil end if @collection - render_collection + render_collection(context, template) else - render_partial + render_partial(context, template) end end private - def render_collection - instrument(:collection, count: @collection.size) do |payload| - return nil if @collection.blank? + def render_collection(view, template) + identifier = (template && template.identifier) || @path + instrument(:collection, identifier: identifier, count: @collection.size) do |payload| + return RenderedCollection.empty(@lookup_context.formats.first) if @collection.blank? - if @options.key?(:spacer_template) - spacer = find_template(@options[:spacer_template], @locals.keys).render(@view, @locals) + spacer = if @options.key?(:spacer_template) + spacer_template = find_template(@options[:spacer_template], @locals.keys) + build_rendered_template(spacer_template.render(view, @locals), spacer_template) + else + RenderedTemplate::EMPTY_SPACER end - cache_collection_render(payload) do - @template ? collection_with_template : collection_without_template - end.join(spacer).html_safe + collection_body = if template + cache_collection_render(payload, view, template) do + collection_with_template(view, template) + end + else + collection_without_template(view) + end + build_rendered_collection(collection_body, spacer) end end - def render_partial - instrument(:partial) do |payload| - view, locals, block = @view, @locals, @block + def render_partial(view, template) + instrument(:partial, identifier: template.identifier) do |payload| + locals, block = @locals, @block object, as = @object, @variable if !block && (layout = @options[:layout]) @@ -341,13 +358,13 @@ module ActionView object = locals[as] if object.nil? # Respect object when object is false locals[as] = object if @has_object - content = @template.render(view, locals) do |*name| + content = template.render(view, locals) do |*name| view._layout_for(*name, &block) end content = layout.render(view, locals) { content } if layout - payload[:cache_hit] = view.view_renderer.cache_hits[@template.virtual_path] - content + payload[:cache_hit] = view.view_renderer.cache_hits[template.virtual_path] + build_rendered_template(content, template, layout) end end @@ -358,16 +375,13 @@ module ActionView # If +options[:partial]+ is a string, then the <tt>@path</tt> instance variable is # set to that string. Otherwise, the +options[:partial]+ object must # respond to +to_partial_path+ in order to setup the path. - def setup(context, options, block) - @view = context + def setup(context, options, as, block) @options = options @block = block - @locals = options[:locals] ? options[:locals].symbolize_keys : {} + @locals = options[:locals] || {} @details = extract_details(options) - prepend_formats(options[:formats]) - partial = options[:partial] if String === partial @@ -381,26 +395,26 @@ module ActionView @collection = collection_from_object || collection_from_options if @collection - paths = @collection_data = @collection.map { |o| partial_path(o) } - @path = paths.uniq.one? ? paths.first : nil + paths = @collection_data = @collection.map { |o| partial_path(o, context) } + if paths.uniq.length == 1 + @path = paths.first + else + paths.map! { |path| retrieve_variable(path, as).unshift(path) } + @path = nil + end else - @path = partial_path + @path = partial_path(@object, context) end end + self + end + + def as_variable(options) if as = options[:as] raise_invalid_option_as(as) unless /\A[a-z_]\w*\z/.match?(as.to_s) - as = as.to_sym - end - - if @path - @variable, @variable_counter, @variable_iteration = retrieve_variable(@path, as) - @template_keys = retrieve_template_keys - else - paths.map! { |path| retrieve_variable(path, as).unshift(path) } + as.to_sym end - - self end def collection_from_options @@ -414,8 +428,8 @@ module ActionView @object.to_ary if @object.respond_to?(:to_ary) end - def find_partial - find_template(@path, @template_keys) if @path + def find_partial(path, template_keys) + find_template(path, template_keys) end def find_template(path, locals) @@ -423,8 +437,8 @@ module ActionView @lookup_context.find_template(path, prefixes, true, locals, @details) end - def collection_with_template - view, locals, template = @view, @locals, @template + def collection_with_template(view, template) + locals = @locals as, counter, iteration = @variable, @variable_counter, @variable_iteration if layout = @options[:layout] @@ -441,12 +455,12 @@ module ActionView content = template.render(view, locals) content = layout.render(view, locals) { content } if layout partial_iteration.iterate! - content + build_rendered_template(content, template, layout) end end - def collection_without_template - view, locals, collection_data = @view, @locals, @collection_data + def collection_without_template(view) + locals, collection_data = @locals, @collection_data cache = {} keys = @locals.keys @@ -463,7 +477,7 @@ module ActionView template = (cache[path] ||= find_template(path, keys + [as, counter, iteration])) content = template.render(view, locals) partial_iteration.iterate! - content + build_rendered_template(content, template) end end @@ -474,7 +488,7 @@ module ActionView # # If +prefix_partial_path_with_controller_namespace+ is true, then this # method will prefix the partial paths with a namespace. - def partial_path(object = @object) + def partial_path(object, view) object = object.to_model if object.respond_to?(:to_model) path = if object.respond_to?(:to_partial_path) @@ -483,7 +497,7 @@ module ActionView raise ArgumentError.new("'#{object.inspect}' is not an ActiveModel-compatible object. It must implement :to_partial_path.") end - if @view.prefix_partial_path_with_controller_namespace + if view.prefix_partial_path_with_controller_namespace prefixed_partial_names[path] ||= merge_prefix_into_object_path(@context_prefix, path.dup) else path @@ -511,9 +525,9 @@ module ActionView end end - def retrieve_template_keys + def retrieve_template_keys(variable) keys = @locals.keys - keys << @variable if @has_object || @collection + keys << variable if @collection keys << @variable_counter keys << @variable_iteration diff --git a/actionview/lib/action_view/renderer/partial_renderer/collection_caching.rb b/actionview/lib/action_view/renderer/partial_renderer/collection_caching.rb index 5aa6f77902..ed59033e27 100644 --- a/actionview/lib/action_view/renderer/partial_renderer/collection_caching.rb +++ b/actionview/lib/action_view/renderer/partial_renderer/collection_caching.rb @@ -11,13 +11,13 @@ module ActionView end private - def cache_collection_render(instrumentation_payload) + def cache_collection_render(instrumentation_payload, view, template) return yield unless @options[:cached] # Result is a hash with the key represents the # key used for cache lookup and the value is the item # on which the partial is being rendered - keyed_collection = collection_by_cache_keys + keyed_collection = collection_by_cache_keys(view, template) # Pull all partials from cache # Result is a hash, key matches the entry in @@ -40,7 +40,7 @@ module ActionView rendered_partials = @collection.empty? ? [] : yield index = 0 - fetch_or_cache_partial(cached_partials, order_by: keyed_collection.each_key) do + fetch_or_cache_partial(cached_partials, template, order_by: keyed_collection.each_key) do # This block is called once # for every cache miss while preserving order. rendered_partials[index].tap { index += 1 } @@ -51,23 +51,21 @@ module ActionView @options[:cached].respond_to?(:call) end - def collection_by_cache_keys + def collection_by_cache_keys(view, template) seed = callable_cache_key? ? @options[:cached] : ->(i) { i } + digest_path = view.digest_path_from_template(template) + @collection.each_with_object({}) do |item, hash| - hash[expanded_cache_key(seed.call(item))] = item + hash[expanded_cache_key(seed.call(item), view, template, digest_path)] = item end end - def expanded_cache_key(key) - key = @view.combined_fragment_cache_key(@view.cache_fragment_name(key, virtual_path: @template.virtual_path, digest_path: digest_path)) + def expanded_cache_key(key, view, template, digest_path) + key = view.combined_fragment_cache_key(view.cache_fragment_name(key, virtual_path: template.virtual_path, digest_path: digest_path)) key.frozen? ? key.dup : key # #read_multi & #write may require mutability, Dalli 2.6.0. end - def digest_path - @digest_path ||= @view.digest_path_from_virtual(@template.virtual_path) - end - # `order_by` is an enumerable object containing keys of the cache, # all keys are passed in whether found already or not. # @@ -83,11 +81,13 @@ module ActionView # # If the partial is not already cached it will also be # written back to the underlying cache store. - def fetch_or_cache_partial(cached_partials, order_by:) + def fetch_or_cache_partial(cached_partials, template, order_by:) order_by.map do |cache_key| - cached_partials.fetch(cache_key) do + if content = cached_partials[cache_key] + build_rendered_template(content, template) + else yield.tap do |rendered_partial| - collection_cache.write(cache_key, rendered_partial) + collection_cache.write(cache_key, rendered_partial.body) end end end diff --git a/actionview/lib/action_view/renderer/renderer.rb b/actionview/lib/action_view/renderer/renderer.rb index 3f3a97529d..485eb1a5b4 100644 --- a/actionview/lib/action_view/renderer/renderer.rb +++ b/actionview/lib/action_view/renderer/renderer.rb @@ -19,10 +19,14 @@ module ActionView # Main render entry point shared by Action View and Action Controller. def render(context, options) + render_to_object(context, options).body + end + + def render_to_object(context, options) # :nodoc: if options.key?(:partial) - render_partial(context, options) + render_partial_to_object(context, options) else - render_template(context, options) + render_template_to_object(context, options) end end @@ -41,16 +45,24 @@ module ActionView # Direct access to template rendering. def render_template(context, options) #:nodoc: - TemplateRenderer.new(@lookup_context).render(context, options) + render_template_to_object(context, options).body end # Direct access to partial rendering. def render_partial(context, options, &block) #:nodoc: - PartialRenderer.new(@lookup_context).render(context, options, block) + render_partial_to_object(context, options, &block).body end def cache_hits # :nodoc: @cache_hits ||= {} end + + def render_template_to_object(context, options) #:nodoc: + TemplateRenderer.new(@lookup_context).render(context, options) + end + + def render_partial_to_object(context, options, &block) #:nodoc: + PartialRenderer.new(@lookup_context).render(context, options, block) + end end end diff --git a/actionview/lib/action_view/renderer/streaming_template_renderer.rb b/actionview/lib/action_view/renderer/streaming_template_renderer.rb index bb9db21e32..279ef3c680 100644 --- a/actionview/lib/action_view/renderer/streaming_template_renderer.rb +++ b/actionview/lib/action_view/renderer/streaming_template_renderer.rb @@ -43,14 +43,14 @@ module ActionView # For streaming, instead of rendering a given a template, we return a Body # object that responds to each. This object is initialized with a block # that knows how to render the template. - def render_template(template, layout_name = nil, locals = {}) #:nodoc: - return [super] unless layout_name && template.supports_streaming? + def render_template(view, template, layout_name = nil, locals = {}) #:nodoc: + return [super.body] unless layout_name && template.supports_streaming? locals ||= {} layout = layout_name && find_layout(layout_name, locals.keys, [formats.first]) Body.new do |buffer| - delayed_render(buffer, template, layout, @view, locals) + delayed_render(buffer, template, layout, view, locals) end end diff --git a/actionview/lib/action_view/renderer/template_renderer.rb b/actionview/lib/action_view/renderer/template_renderer.rb index ce8908924a..9548fe12c4 100644 --- a/actionview/lib/action_view/renderer/template_renderer.rb +++ b/actionview/lib/action_view/renderer/template_renderer.rb @@ -5,15 +5,12 @@ require "active_support/core_ext/object/try" module ActionView class TemplateRenderer < AbstractRenderer #:nodoc: def render(context, options) - @view = context @details = extract_details(options) template = determine_template(options) - prepend_formats(template.formats) + prepend_formats(template.format) - @lookup_context.rendered_format ||= (template.formats.first || formats.first) - - render_template(template, options[:layout], options[:locals]) + render_template(context, template, options[:layout], options[:locals] || {}) end private @@ -29,15 +26,20 @@ module ActionView elsif options.key?(:html) Template::HTML.new(options[:html], formats.first) elsif options.key?(:file) - with_fallbacks { find_file(options[:file], nil, false, keys, @details) } + @lookup_context.with_fallbacks.find_file(options[:file], nil, false, keys, @details) elsif options.key?(:inline) handler = Template.handler_for_extension(options[:type] || "erb") - Template.new(options[:inline], "inline template", handler, locals: keys) + format = if handler.respond_to?(:default_format) + handler.default_format + else + @lookup_context.formats.first + end + Template::Inline.new(options[:inline], "inline template", handler, locals: keys, format: format) elsif options.key?(:template) if options[:template].respond_to?(:render) options[:template] else - find_template(options[:template], options[:prefixes], false, keys, @details) + @lookup_context.find_template(options[:template], options[:prefixes], false, keys, @details) end else raise ArgumentError, "You invoked render but did not give any of :partial, :template, :inline, :file, :plain, :html or :body option." @@ -46,27 +48,25 @@ module ActionView # Renders the given template. A string representing the layout can be # supplied as well. - def render_template(template, layout_name = nil, locals = nil) - view, locals = @view, locals || {} - - render_with_layout(layout_name, locals) do |layout| + def render_template(view, template, layout_name, locals) + render_with_layout(view, template, layout_name, locals) do |layout| instrument(:template, identifier: template.identifier, layout: layout.try(:virtual_path)) do template.render(view, locals) { |*name| view._layout_for(*name) } end end end - def render_with_layout(path, locals) + def render_with_layout(view, template, path, locals) layout = path && find_layout(path, locals.keys, [formats.first]) content = yield(layout) - if layout - view = @view + body = if layout view.view_flow.set(:layout, content) layout.render(view, locals) { |*name| view._layout_for(*name) } else content end + build_rendered_template(body, template, layout) end # This is the method which actually finds the layout using details in the lookup @@ -84,16 +84,16 @@ module ActionView when String begin if layout.start_with?("/") - with_fallbacks { find_template(layout, nil, false, [], details) } + @lookup_context.with_fallbacks.find_template(layout, nil, false, [], details) else - find_template(layout, nil, false, [], details) + @lookup_context.find_template(layout, nil, false, [], details) end rescue ActionView::MissingTemplate all_details = @details.merge(formats: @lookup_context.default_formats) raise unless template_exists?(layout, nil, false, [], all_details) end when Proc - resolve_layout(layout.call(formats), keys, formats) + resolve_layout(layout.call(@lookup_context, formats), keys, formats) else layout end |