Fix bug.

app/controllers/calendars_controller.rb

@@ -34,6 +34,12 @@ class CalendarsController < ApplicationController
   def widget
     part = OrbitHelper.get_current_widget
     @calendar_setting = CalendarSetting.first
+    begin
+      extra_before_html = render_to_string(partial: 'calendars/calendar_variable', locals: {:@calendar_setting=>@calendar_setting})
+    rescue => e
+      extra_before_html = ""
+      puts e, e.backtrace
+    end
     {
       "modes_info" => @calendar_setting.get_modes_info.map.with_index{|(trans, mode),i| {trans: trans, mode: mode, active_class: (i ==
  2 ? 'active' : '')}},
@@ -44,7 +50,8 @@ class CalendarsController < ApplicationController
         'widget_title' => part.title,
         'widget_title_class' => part.title.blank? ? 'center' : '',
         'calendar_title' => get_calendar_title,
-        'default_column' => widget_default_column
+        'default_column' => widget_default_column,
+        'extra_before_html' => extra_before_html
       }
     }
   end

app/views/calendars/_calendar_variable.html.erb

@@ -1,4 +1,5 @@
 <script>
+    if(window.calendar_variable == undefined){
         window.calendar_variable = {};
         window.calendar_variable.from = "<%=t('calendar.from')%>";
         window.calendar_variable.to = "<%=t('calendar.to')%>";
@@ -13,4 +14,5 @@
                 window.calendar_variable.dayNamesShort = <%=@calendar_setting.days.map{|d| d[0...3]}.to_s.html_safe%>;
             <% end %>
         <% end %>
+    }
 </script>