Fixes admin menu link when create a new widget

app/helpers/admin_helper.rb

@@ -9,11 +9,7 @@ module AdminHelper
   end
 
   def namespaced_root_path
-    if namespace == 'moderation/budgets'
-      "/moderation"
-    else
-      "/#{namespace}"
-    end
+    "/#{namespace}"
   end
 
   def namespaced_header_title
@@ -95,7 +91,7 @@ module AdminHelper
   private
 
     def namespace
-      controller.class.parent.name.downcase.gsub("::", "/")
+      controller.class.name.downcase.split("::").first
     end
 
 end

app/helpers/budgets_helper.rb

@@ -27,7 +27,7 @@ module BudgetsHelper
 
   def namespaced_budget_investment_path(investment, options = {})
     case namespace
-    when "management/budgets"
+    when "management"
       management_budget_investment_path(investment.budget, investment, options)
     else
       budget_investment_path(investment.budget, investment, options)
@@ -36,7 +36,7 @@ module BudgetsHelper
 
   def namespaced_budget_investment_vote_path(investment, options = {})
     case namespace
-    when "management/budgets"
+    when "management"
       vote_management_budget_investment_path(investment.budget, investment, options)
     else
       vote_budget_investment_path(investment.budget, investment, options)