Updated.

app/models/seminar_main.rb

@@ -186,7 +186,12 @@ class SeminarMain
       end
     end
   end
-  after_initialize do
+  after_destroy do
+    Thread.new do
+      Page.where(:bind_model=>self.class.to_s,:bind_uid=>self.uid).destroy
+    end
+  end
+  def migrate_old
     unless self.new_record? || @triggered_initialize
       @triggered_initialize = true
       save_flag = false
@@ -234,11 +239,6 @@ class SeminarMain
       self.save(:validate=>false) if save_flag
     end
   end
-  after_destroy do
-    Thread.new do
-      Page.where(:bind_model=>self.class.to_s,:bind_uid=>self.uid).destroy
-    end
-  end
   def get_frontend_url(tmp_seminar_url, call_action=nil)
     @enable_custom_template = self.enable_custom_template
     if call_action.nil?

config/routes.rb

@@ -9,22 +9,27 @@ Rails.application.routes.draw do
       update_flag = s.respond_to?(:tmp_flags)
       need_update1 = update_flag && !(s.tmp_flags.include?('fix_sr'))
       need_update2 = !update_flag || !(s.tmp_flags.include?('smer1'))
+      need_update3 = !update_flag || !(s.tmp_flags.include?('smer2'))
       if need_update1
         Page.where(:bind_model=>"SeminarMain",:all_pageids=>nil).each do |p|
           p.save
         end
-        tmp_flags = s.tmp_flags
-        tmp_flags << 'fix_sr'
-        Site.update_all(:tmp_flags => tmp_flags)
+        Site.update_all("$push"=>{"tmp_flags"=>'fix_sr'})
       end
       if need_update2
         SeminarMain.where(:enable_recaptcha=>nil).each do |seminar_main|
           seminar_main.update_enable_recaptcha
         end
         if update_flag
-          s = Site.first
-          s.tmp_flags << 'smer1'
-          s.save
+          Site.update_all("$push"=>{"tmp_flags"=>'smer1'})
+        end
+      end
+      if need_update3
+        SeminarMain.all.to_a.each do |seminar_main|
+          seminar_main.migrate_old
+        end
+        if update_flag
+          Site.update_all("$push"=>{"tmp_flags"=>'smer2'})
         end
       end
     end