Update slug for preview

app/models/concerns/slug.rb

@@ -1,4 +1,4 @@
- module Slug
+module Slug
   extend ActiveSupport::Concern
 
   included do
@@ -15,8 +15,6 @@
     (self.slug_title.gsub(/[ "'*@#$%^&()+=;:.,?>|\\\/<~_!：，、。！？；「」〈〉【】／]/,'-')+"-"+self.uid).gsub(/-{2,}/,'-') rescue "-"+self.uid
   end
 
-  private
-
   def generate_uid
     self.uid = rand(10**8).to_s
     generate_uid if self.class.where(:uid=>self.uid).size > 0