give inherited_namespace to konstantin for further work

app/models/report/inherited_namespace.rb

@@ -1,28 +1,50 @@
 module Report::InheritedNamespace
+  NESTED_NAMESPACES = %w[Validation Filter GroupBy Result]
+  
+
   def self.activate
-    [Report, Report::Validation, Report::Filter, Report::GroupBy, Report::Result].each do |klass|
+    Report.extend self
-      extend_object klass
+    NESTED_NAMESPACES.each { |n| n.extend self }
-    end
   end
 
   def const_missing(name, *)
+    puts "const_missing called on #{self.name}"
     super
   rescue NameError => error
     raise error unless respond_to? :superclass and superclass != self
-    begin
+    load_constant name, error
+  end
+
+  def inherited(klass)
+    super
+    propagate klass
+  end
+  
+  def included(klass)
+    super
+    propagate klass
+  end
+  
+  def propagate(klass)
+    klass.extend Report::InheritedNamespace
+    NESTED_NAMESPACES.each do |name|
+      if file = ActiveSupport::Dependencies.search_for_file("#{klass.name}::#{name}".underscore)
+        require_or_load file
+      else
+        const_missing name
+      end
+    end
+  end
+
+  def load_constant(name, error = nil)
+    puts "#{self.name} #{name}"
     zuper = superclass.const_get(name)
     case zuper
     when Class  then const_set name, Class.new(zuper).extend(Report::InheritedNamespace)
     when Module then const_set name, Module.new { include zuper }.extend(Report::InheritedNamespace)
     else const_set name, zuper
     end
-    rescue NameError
+  rescue NameError, ArgumentError
     raise error
   end
-  end
-
-  def inherited(klass)
-    super
-    klass.extend Report::InheritedNamespace
-  end
 end