get number of users

Signed-off-by: Alexandre Arias <apa13@inf.ufpr.br>

app/controllers/management/statistics_controller.rb

@@ -4,14 +4,14 @@ class Management::StatisticsController < ManagementController
   def index
     @n_collections = collection_repository.get_number_of_collections
     @n_views = main_page_repository.get_number_of("Views")
-    #@n_users = main_page_repository.get_number_of("User")
+    @n_users = subject_repository.get_number_of("User")
     @n_learning_objects = learning_object_repository.get_number_of("learningObject")
     @n_non_visualised = learning_object_repository.get_number_of_non_visualised
-    @most_visualised = learning_object_repository.get_most_visualised
   end
 
   def users
-    @n_users = main_page_repository.get_number_of("User")
+    #missing roles 
+    @n_users = subject_repository.get_number_of("User")
   end
 
   def downloads

app/repositories/orient_db/user_repository.rb

 module OrientDb
   class UserRepository < Base
-    include OrientDb::Methods::GenericMethods
     include RepositoriesProxy
 
     def create_graph_node(user)
@@ -21,10 +20,6 @@ module OrientDb
       result.first["rid"].to_s
     end
 
-    def get_number_of_users
-      get_number_of("User")
-    end
-
     def is_vertex?(user)
       result = connection.query sprintf("SELECT @rid FROM User WHERE p_id = %d", user.id)
       (result.count > 0)