Ensure routing optimizations are cleared when new routes are added [#981

 state:resolved]

Signed-off-by: Joshua Peek <josh@joshpeek.com>

actionpack/lib/action_controller/routing/recognition_optimisation.rb

@@ -68,12 +68,16 @@ def recognize_path(path, environment={})
         end
       end
 
-      def recognize_optimized(path, env)
-        write_recognize_optimized
-        recognize_optimized(path, env)
+      def clear_recognize_optimized!
+        instance_eval %{
+          def recognize_optimized(path, env)
+            write_recognize_optimized!
+            recognize_optimized(path, env)
+          end
+        }, __FILE__, __LINE__
       end
 
-      def write_recognize_optimized
+      def write_recognize_optimized!
         tree = segment_tree(routes)
         body = generate_code(tree)
         instance_eval %{

actionpack/lib/action_controller/routing/route_set.rb

@@ -194,6 +194,7 @@ def #{selector}(*args)
       def initialize
         self.routes = []
         self.named_routes = NamedRouteCollection.new
+        clear_recognize_optimized!
       end
 
       # Subclasses and plugins may override this method to specify a different
@@ -213,9 +214,9 @@ def clear!
         named_routes.clear
         @combined_regexp = nil
         @routes_by_controller = nil
-        # This will force routing/recognition_optimization.rb
+        # This will force routing/recognition_optimisation.rb
         # to refresh optimisations.
-        @compiled_recognize_optimized = nil
+        clear_recognize_optimized!
       end
 
       def install_helpers(destinations = [ActionController::Base, ActionView::Base], regenerate_code = false)

actionpack/test/controller/routing_test.rb

@@ -671,6 +671,35 @@ def test_failed_requirements_raises_exception_with_violated_requirements
       x.send(:foo_with_requirement_url, "I am Against the requirements")
     end
   end
+
+  def test_routes_changed_correctly_after_clear
+    ActionController::Base.optimise_named_routes = true
+    rs = ::ActionController::Routing::RouteSet.new
+    rs.draw do |r|
+      r.connect 'ca', :controller => 'ca', :action => "aa"
+      r.connect 'cb', :controller => 'cb', :action => "ab"
+      r.connect 'cc', :controller => 'cc', :action => "ac"
+      r.connect ':controller/:action/:id'
+      r.connect ':controller/:action/:id.:format'
+    end
+
+    hash = rs.recognize_path "/cc"
+
+    assert_not_nil hash
+    assert_equal %w(cc ac), [hash[:controller], hash[:action]]
+
+    rs.draw do |r|
+      r.connect 'cb', :controller => 'cb', :action => "ab"
+      r.connect 'cc', :controller => 'cc', :action => "ac"    
+      r.connect ':controller/:action/:id'
+      r.connect ':controller/:action/:id.:format'
+    end
+
+    hash = rs.recognize_path "/cc"
+
+    assert_not_nil hash
+    assert_equal %w(cc ac), [hash[:controller], hash[:action]]
+  end
 end
 
 class SegmentTest < Test::Unit::TestCase