diff options
Diffstat (limited to 'actionpack/lib/action_view/renderer/partial_renderer.rb')
| -rw-r--r-- | actionpack/lib/action_view/renderer/partial_renderer.rb | 94 |
1 files changed, 49 insertions, 45 deletions
diff --git a/actionpack/lib/action_view/renderer/partial_renderer.rb b/actionpack/lib/action_view/renderer/partial_renderer.rb index 8b53867aea..9100545718 100644 --- a/actionpack/lib/action_view/renderer/partial_renderer.rb +++ b/actionpack/lib/action_view/renderer/partial_renderer.rb @@ -158,8 +158,8 @@ module ActionView # Name: <%= user.name %> # </div> # - # If a collection is given, the layout will be rendered once for each item in the collection. Just think - # these two snippets have the same output: + # If a collection is given, the layout will be rendered once for each item in + # the collection. Just think these two snippets have the same output: # # <%# app/views/users/_user.html.erb %> # Name: <%= user.name %> @@ -184,7 +184,7 @@ module ActionView # <%= render :partial => "user", :layout => "li_layout", :collection => users %> # </ul> # - # Given two users whose names are Alice and Bob, these snippets return: + # Given two users whose names are Alice and Bob, these snippets return: # # <ul> # <li> @@ -195,6 +195,10 @@ module ActionView # </li> # </ul> # + # The current object being rendered, as well as the object_counter, will be + # available as local variables inside the layout template under the same names + # as available in the partial. + # # You can also apply a layout to a block within any template: # # <%# app/views/users/_chief.html.erb &> @@ -279,26 +283,19 @@ module ActionView return nil if @collection.blank? if @options.key?(:spacer_template) - spacer = find_template(@options[:spacer_template]).render(@view, @locals) - end - - if layout = @options[:layout] - layout = find_template(layout) + spacer = find_template(@options[:spacer_template], @locals.keys).render(@view, @locals) end result = @template ? collection_with_template : collection_without_template - - result.map!{|content| layout.render(@view, @locals) { content } } if layout - result.join(spacer).html_safe end def render_partial - locals, view, block = @locals, @view, @block + view, locals, block = @view, @locals, @block object, as = @object, @variable if !block && (layout = @options[:layout]) - layout = find_template(layout) + layout = find_template(layout, @template_keys) end object ||= locals[as] @@ -340,14 +337,15 @@ module ActionView if @path @variable, @variable_counter = retrieve_variable(@path) + @template_keys = retrieve_template_keys else paths.map! { |path| retrieve_variable(path).unshift(path) } end if String === partial && @variable.to_s !~ /^[a-z_][a-zA-Z_0-9]*$/ raise ArgumentError.new("The partial name (#{partial}) is not a valid Ruby identifier; " + - "make sure your partial name starts with a letter or underscore, " + - "and is followed by any combinations of letters, numbers, or underscores.") + "make sure your partial name starts with a lowercase letter or underscore, " + + "and is followed by any combination of letters, numbers and underscores.") end self @@ -361,56 +359,55 @@ module ActionView end def collection_from_object - if @object.respond_to?(:to_ary) - @object.to_ary - end + @object.to_ary if @object.respond_to?(:to_ary) end def find_partial if path = @path - locals = @locals.keys - locals << @variable - locals << @variable_counter if @collection - find_template(path, locals) + find_template(path, @template_keys) end end - def find_template(path=@path, locals=@locals.keys) + def find_template(path, locals) prefixes = path.include?(?/) ? [] : @lookup_context.prefixes @lookup_context.find_template(path, prefixes, true, locals, @details) end def collection_with_template - segments, locals, template = [], @locals, @template + view, locals, template = @view, @locals, @template as, counter = @variable, @variable_counter - locals[counter] = -1 + if layout = @options[:layout] + layout = find_template(layout, @template_keys) + end + + index = -1 + @collection.map do |object| + locals[as] = object + locals[counter] = (index += 1) - @collection.each do |object| - locals[counter] += 1 - locals[as] = object - segments << template.render(@view, locals) + content = template.render(view, locals) + content = layout.render(view, locals) { content } if layout + content end - - segments end - def collection_without_template - segments, locals, collection_data = [], @locals, @collection_data - index, template, cache = -1, nil, {} - keys = @locals.keys + view, locals, collection_data = @view, @locals, @collection_data + cache = {} + keys = @locals.keys - @collection.each_with_index do |object, i| - path, *data = collection_data[i] - template = (cache[path] ||= find_template(path, keys + data)) - locals[data[0]] = object - locals[data[1]] = (index += 1) - segments << template.render(@view, locals) - end + index = -1 + @collection.map do |object| + index += 1 + path, as, counter = collection_data[index] - @template = template - segments + locals[as] = object + locals[counter] = index + + template = (cache[path] ||= find_template(path, keys + [as, counter])) + template.render(view, locals) + end end def partial_path(object = @object) @@ -450,8 +447,15 @@ module ActionView end end + def retrieve_template_keys + keys = @locals.keys + keys << @variable + keys << @variable_counter if @collection + keys + end + def retrieve_variable(path) - variable = @options[:as].try(:to_sym) || path[%r'_?(\w+)(\.\w+)*$', 1].to_sym + variable = @options.fetch(:as) { path[%r'_?(\w+)(\.\w+)*$', 1] }.try(:to_sym) variable_counter = :"#{variable}_counter" if @collection [variable, variable_counter] end |