From 3cecbc21e37f772a72917f80c53a7645f81d94c5 Mon Sep 17 00:00:00 2001
From: Yehuda Katz and Carl Lerche <wycats@gmail.com>
Date: Tue, 7 Apr 2009 17:57:20 -0700
Subject: Get Base2 layouts to work :)

---
 .../lib/action_controller/abstract/layouts.rb      | 34 +++++++++++++---------
 .../lib/action_controller/new_base/layouts.rb      | 23 +++++++++++++++
 2 files changed, 44 insertions(+), 13 deletions(-)

(limited to 'actionpack/lib/action_controller')

diff --git a/actionpack/lib/action_controller/abstract/layouts.rb b/actionpack/lib/action_controller/abstract/layouts.rb
index 1990941916..478b301a26 100644
--- a/actionpack/lib/action_controller/abstract/layouts.rb
+++ b/actionpack/lib/action_controller/abstract/layouts.rb
@@ -17,6 +17,16 @@ module AbstractController
         name.underscore
       end
       
+      # Takes the specified layout and creates a _layout method to be called
+      # by _default_layout
+      # 
+      # If the specified layout is a:
+      # String:: return the string
+      # Symbol:: call the method specified by the symbol
+      # false::  return nil
+      # none::   If a layout is found in the view paths with the controller's
+      #          name, return that string. Otherwise, use the superclass'
+      #          layout (which might also be implied)
       def _write_layout_method
         case @_layout
         when String
@@ -46,25 +56,23 @@ module AbstractController
   private
   
     def _layout() end # This will be overwritten
-
-    def _layout_for_option(name)
-      case name
-      when String     then _layout_for_name(name)
-      when true       then _default_layout(true)
-      when false, nil then nil
-      else
-        raise ArgumentError, 
-          "String, true, or false, expected for `layout'; you passed #{name.inspect}"        
-      end
-    end
     
     def _layout_for_name(name)
-      view_paths.find_by_parts(name, formats, "layouts")
+      unless [String, FalseClass, NilClass].include?(name.class)
+        raise ArgumentError, "String, false, or nil expected; you passed #{name.inspect}"
+      end
+      
+      name && view_paths.find_by_parts(name, formats, "layouts")
     end
     
     def _default_layout(require_layout = false)
+      if require_layout && !_layout
+        raise ArgumentError, 
+          "There was no default layout for #{self.class} in #{view_paths.inspect}"
+      end
+        
       begin
-        _layout_for_option(_layout)
+        layout = _layout_for_name(_layout)
       rescue NameError => e
         raise NoMethodError, 
           "You specified #{@_layout.inspect} as the layout, but no such method was found"
diff --git a/actionpack/lib/action_controller/new_base/layouts.rb b/actionpack/lib/action_controller/new_base/layouts.rb
index 2351472dad..149847c968 100644
--- a/actionpack/lib/action_controller/new_base/layouts.rb
+++ b/actionpack/lib/action_controller/new_base/layouts.rb
@@ -3,12 +3,35 @@ module ActionController
     depends_on ActionController::Renderer
     depends_on AbstractController::Layouts
     
+    module ClassMethods
+      def _implied_layout_name
+        controller_path
+      end
+    end
+    
     def render_to_string(options)
+      # render :text => ..., :layout => ...
+      # or
+      # render :anything_else
       if !options.key?(:text) || options.key?(:layout)
         options[:_layout] = options.key?(:layout) ? _layout_for_option(options[:layout]) : _default_layout
       end
       
       super
     end
+    
+  private
+  
+    def _layout_for_option(name)
+      case name
+      when String     then _layout_for_name(name)
+      when true       then _default_layout(true)
+      when false, nil then nil
+      else
+        raise ArgumentError, 
+          "String, true, or false, expected for `layout'; you passed #{name.inspect}"        
+      end
+    end
+    
   end
 end
\ No newline at end of file
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