Change inside_namespace method to inside_template and use it in all templates by default

The initial implementation of namespacing was based on wrong
assumptions. Namespacing path and class names in templates
should be based on current namespace and skip_namespace attribute,
but it should be not necessary to wrap content on all the templates
into additional block methods.

railties/lib/rails/generators/erb/scaffold/templates/_form.html.erb

@@ -1,4 +1,3 @@
-<% without_namespacing do -%>
 <%%= form_for(@<%= singular_table_name %>) do |f| %>
   <%% if @<%= singular_table_name %>.errors.any? %>
     <div id="error_explanation">
@@ -22,4 +21,3 @@
     <%%= f.submit %>
   </div>
 <%% end %>
-<% end -%>

railties/lib/rails/generators/erb/scaffold/templates/edit.html.erb

@@ -1,8 +1,6 @@
-<% without_namespacing do -%>
 <h1>Editing <%= singular_table_name %></h1>
 
 <%%= render 'form' %>
 
 <%%= link_to 'Show', @<%= singular_table_name %> %> |
 <%%= link_to 'Back', <%= index_helper %>_path %>
-<% end -%>

railties/lib/rails/generators/erb/scaffold/templates/index.html.erb

@@ -1,4 +1,3 @@
-<% without_namespacing do -%>
 <h1>Listing <%= plural_table_name %></h1>
 
 <table>
@@ -26,4 +25,3 @@
 <br />
 
 <%%= link_to 'New <%= human_name %>', new_<%= singular_table_name %>_path %>
-<% end -%>

railties/lib/rails/generators/erb/scaffold/templates/new.html.erb

@@ -1,7 +1,5 @@
-<% without_namespacing do -%>
 <h1>New <%= singular_table_name %></h1>
 
 <%%= render 'form' %>
 
 <%%= link_to 'Back', <%= index_helper %>_path %>
-<% end -%>

railties/lib/rails/generators/erb/scaffold/templates/show.html.erb

@@ -1,4 +1,3 @@
-<% without_namespacing do -%>
 <p id="notice"><%%= notice %></p>
 
 <% for attribute in attributes -%>
@@ -11,4 +10,3 @@
 
 <%%= link_to 'Edit', edit_<%= singular_table_name %>_path(@<%= singular_table_name %>) %> |
 <%%= link_to 'Back', <%= index_helper %>_path %>
-<% end -%>

railties/lib/rails/generators/named_base.rb

@@ -16,6 +16,14 @@ module Rails
         parse_attributes! if respond_to?(:attributes)
       end
 
+      no_tasks do
+        def template(source, *args, &block)
+          inside_template do
+            super
+          end
+        end
+      end
+
       protected
         attr_reader :file_name
         alias :singular_name :file_name
@@ -23,17 +31,9 @@ module Rails
         # Wrap block with namespace of current application
         # if namespace exists and is not skipped
         def module_namespacing(&block)
-          inside_namespace do
-            content = capture(&block)
-            content = wrap_with_namespace(content) if namespaced?
-            concat(content)
-          end
-        end
-
-        def without_namespacing(&block)
-          inside_namespace do
-            concat(capture(&block))
-          end
+          content = capture(&block)
+          content = wrap_with_namespace(content) if namespaced?
+          concat(content)
         end
 
         def indent(content, multiplier = 2)
@@ -46,12 +46,15 @@ module Rails
           "module #{namespace.name}\n#{content}\nend\n"
         end
 
-        def inside_namespace
-          @inside_namespace = true if namespaced?
-          result = yield
-          result
+        def inside_template
+          @inside_template = true
+          yield
         ensure
-          @inside_namespace = false
+          @inside_template = false
+        end
+
+        def inside_template?
+          @inside_template
         end
 
         def namespace
@@ -64,16 +67,12 @@ module Rails
           !options[:skip_namespace] && namespace
         end
 
-        def inside_namespace?
-          @inside_namespace
-        end
-
         def file_path
           @file_path ||= (class_path + [file_name]).join('/')
         end
 
         def class_path
-          inside_namespace? || !namespaced? ? regular_class_path : namespaced_class_path
+          inside_template? || !namespaced? ? regular_class_path : namespaced_class_path
         end
 
         def regular_class_path