diff options
Diffstat (limited to 'actionpack/lib/abstract_controller')
-rw-r--r-- | actionpack/lib/abstract_controller/layouts.rb | 69 |
1 files changed, 49 insertions, 20 deletions
diff --git a/actionpack/lib/abstract_controller/layouts.rb b/actionpack/lib/abstract_controller/layouts.rb index 0063d54149..ac2154dffc 100644 --- a/actionpack/lib/abstract_controller/layouts.rb +++ b/actionpack/lib/abstract_controller/layouts.rb @@ -6,13 +6,51 @@ module AbstractController included do extlib_inheritable_accessor(:_layout_conditions) { Hash.new } + extlib_inheritable_accessor(:_action_has_layout) { Hash.new } _write_layout_method end module ClassMethods def inherited(klass) super - klass._write_layout_method + klass.class_eval do + _write_layout_method + @found_layouts = {} + end + end + + def cache_layout(details) + layout = @found_layouts + values = details.values_at(:formats, :locale) + + # Cache nil + if layout.key?(values) + return layout[values] + else + layout[values] = yield + end + end + + # This module is mixed in if layout conditions are provided. This means + # that if no layout conditions are used, this method is not used + module LayoutConditions + # Determines whether the current action has a layout by checking the + # action name against the :only and :except conditions set on the + # layout. + # + # ==== Returns + # Boolean:: True if the action has a layout, false otherwise. + def _action_has_layout? + conditions = _layout_conditions + + if only = conditions[:only] + only.include?(action_name) + elsif except = conditions[:except] + !except.include?(action_name) + else + true + end + end end # Specify the layout to use for this class. @@ -31,6 +69,8 @@ module AbstractController # :only<#to_s, Array[#to_s]>:: A list of actions to apply this layout to. # :except<#to_s, Array[#to_s]>:: Apply this layout to all actions but this one def layout(layout, conditions = {}) + include LayoutConditions unless conditions.empty? + conditions.each {|k, v| conditions[k] = Array(v).map {|a| a.to_s} } self._layout_conditions = conditions @@ -76,10 +116,12 @@ module AbstractController when nil self.class_eval <<-ruby_eval, __FILE__, __LINE__ + 1 def _layout(details) - if view_paths.exists?("#{_implied_layout_name}", details, "layouts") - "#{_implied_layout_name}" - else - super + self.class.cache_layout(details) do + if view_paths.exists?("#{_implied_layout_name}", details, "layouts") + "#{_implied_layout_name}" + else + super + end end end ruby_eval @@ -136,7 +178,7 @@ module AbstractController view_paths.find(name, details, prefix) end - # Returns the default layout for this controller and a given set of details. + # Returns the default layout for this controller and a given set of details. # Optionally raises an exception if the layout could not be found. # # ==== Parameters @@ -162,21 +204,8 @@ module AbstractController end end - # Determines whether the current action has a layout by checking the - # action name against the :only and :except conditions set on the - # layout. - # - # ==== Returns - # Boolean:: True if the action has a layout, false otherwise. def _action_has_layout? - conditions = _layout_conditions - if only = conditions[:only] - only.include?(action_name) - elsif except = conditions[:except] - !except.include?(action_name) - else - true - end + true end end end |