Merge branch 'master' of git://github.com/rails/rails

3 files changed, 6 insertions, 3 deletions

diff --git a/actionpack/lib/action_dispatch/routing/deprecated_mapper.rb b/actionpack/lib/action_dispatch/routing/deprecated_mapper.rb
index 0564ba9797..dd76391870 100644
--- a/actionpack/lib/action_dispatch/routing/deprecated_mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/deprecated_mapper.rb
@@ -113,8 +113,7 @@ module ActionDispatch
           end
         end
 
-        possible_names = Routing.possible_controllers.collect { |n| Regexp.escape(n) }
-        requirements[:controller] ||= Regexp.union(*possible_names)
+        requirements[:controller] ||= Routing.controller_constraints
 
         if defaults[:controller]
           defaults[:action] ||= 'index'
diff --git a/actionpack/lib/action_dispatch/routing/mapper.rb b/actionpack/lib/action_dispatch/routing/mapper.rb
index 6e112c9b54..cfe7425a61 100644
--- a/actionpack/lib/action_dispatch/routing/mapper.rb
+++ b/actionpack/lib/action_dispatch/routing/mapper.rb
@@ -282,6 +282,8 @@ module ActionDispatch
         constraints.reject! { |k, v| segment_keys.include?(k.to_s) }
         conditions.merge!(constraints)
 
+        requirements[:controller] ||= Routing.controller_constraints
+
         if via = options[:via]
           via = Array(via).map { |m| m.to_s.upcase }
           conditions[:request_method] = Regexp.union(*via)
diff --git a/actionpack/lib/action_dispatch/routing/route_set.rb b/actionpack/lib/action_dispatch/routing/route_set.rb
index c15aaceb5b..79e15edeaa 100644
--- a/actionpack/lib/action_dispatch/routing/route_set.rb
+++ b/actionpack/lib/action_dispatch/routing/route_set.rb
@@ -246,7 +246,9 @@ module ActionDispatch
       end
 
       def load!
-        Routing.use_controllers!(nil) # Clear the controller cache so we may discover new ones
+        # Clear the controller cache so we may discover new ones
+        Routing.clear_controller_cache!
+
         load_routes!
       end