fix for no modules and added gotcha for ask module

Gemfile

@@ -78,6 +78,9 @@ group :test do
   gem 'minitest-spec-rails'
 end
 
+#ask
+gem 'gotcha'
+
 #desktop
 gem 'angularjs-rails', '~> 1.2.20'
 gem 'angular-ui-bootstrap-rails', '~> 0.11.0'

app/controllers/admin/dashboards_controller.rb

@@ -31,23 +31,27 @@ class Admin::DashboardsController < ApplicationController
     a = {}
     total = 0
     args.each do |module_app|
-      module_app_class = module_app.classify.constantize
+      module_app_class = module_app.classify.constantize rescue nil
+      if !module_app_class.nil?
         count = module_app_class.count
         a.merge!(module_app => count)
         total += count
       end
+    end
     [Kaminari.paginate_array(a.sort {|a,b| b[1]<=>a[1]}).page(params[:page]).per(5), total]
   end
 
   def get_recently_updated(args)
     a = {}
     args.each do |module_app|
-      module_app_class = module_app.classify.constantize
+      module_app_class = module_app.classify.constantize rescue nil
+      if !module_app_class.nil?
         objects = module_app_class.order_by([:updated_at, :desc]).limit(20)
         objects.each do |object|
           a.merge!(object => object.updated_at) unless (object.archived rescue nil)
         end
       end
+    end
     sorted_objects = a.sort {|a,b| b[1]<=>a[1]}
     sorted_objects[0..19]
     Kaminari.paginate_array(sorted_objects).page(params[:page]).per(5)
@@ -56,17 +60,18 @@ class Admin::DashboardsController < ApplicationController
   def get_most_visited(args)
     a = {}
     args.each do |module_app|
-      module_app_class = module_app.classify.constantize
+      module_app_class = module_app.classify.constantize rescue nil
+      if !module_app_class.nil?
         objects = module_app_class.order_by([:view_count, :desc]).limit(20)
         objects.each do |object|
           a.merge!(object => object.view_count) if object.view_count > 0 && (!object.archived rescue true)
         end
       end
+    end
     sorted_objects = a.sort {|a,b| b[1]<=>a[1]}
     sorted_objects[0..19]
     Kaminari.paginate_array(sorted_objects).page(params[:page]).per(5)
   end
-
   private
 
   def check_backend_openness