Fixed bugs for nccu

app/controllers/orbit_backend_controller.rb

@@ -74,7 +74,7 @@ class OrbitBackendController< ApplicationController
           when 'categories'
             a = Array.new
             objects.each do |object|
-              a << object if value.include?(object.send("#{object.class.to_s.underscore}_category").id.to_s)
+              a << object if (value.include?(object.send("#{object.class.to_s.underscore}_category").id.to_s) rescue nil)
             end
             objects = a.uniq
           when 'tags'
@@ -99,9 +99,9 @@ class OrbitBackendController< ApplicationController
     if s
       case s.class.to_s
         when "String"
-          s.downcase
+          s.downcase rescue ''
         when "I18nVariable"
-          s[I18n.locale].downcase
+          s[I18n.locale].downcase rescue ''
         else
           nil
         end

app/views/kaminari/_gap.html.erb

@@ -5,4 +5,4 @@
     per_page:      number of items to fetch per page
     remote:        data-remote
 -%>
-<li class="page gap"><%= raw(t 'views.pagination.truncate') %></li>
+<!-- <li class="page gap"><%= raw(t 'views.pagination.truncate') %></li> -->