Update sort.

app/controllers/personal_certificates_controller.rb

@@ -1,7 +1,7 @@
 class PersonalCertificatesController < ApplicationController
 	def index
 		params = OrbitHelper.params
-	    certificates = Certificate.where(:is_hidden=>false).sort_for_frontend.page(OrbitHelper.params[:page_no]).per(OrbitHelper.page_data_count)
+	    certificates = Certificate.sort_for_frontend.page(OrbitHelper.params[:page_no]).per(OrbitHelper.page_data_count)
 	    fields_to_show = Page.where(:page_id => params[:page_id]).first.custom_array_field rescue []
 
 	    if fields_to_show.blank?

app/models/certificate.rb

@@ -2,14 +2,17 @@ class Certificate
 	include Mongoid::Document
 	include Mongoid::Timestamps
 	include OrbitModel::Status
-  	include MemberHelper
-  	include Slug
+	include MemberHelper
+	include Slug
 
 	field :issued_by
 	field :title, as: :slug_title, type: String, localize: true
 
 	belongs_to :member_profile
-  	scope :sort_for_frontend, ->{ where(:is_hidden=>false).order_by(:title =>'asc') }
+
+	index({title: 1, _id: -1}, { unique: false, background: false })
+	scope :sort_title, ->{ order_by(:title => "asc", :id=>"desc") }
+	scope :sort_for_frontend, ->{ where(:is_hidden=>false).order_by(:title =>'asc',:id =>'desc') }
 
 	def self.get_plugin_datas_to_member(datas)
 		page = Page.where(:module => "personal_certificate").first rescue nil

app/views/plugin/personal_certificate/_profile.html.erb

@@ -7,9 +7,9 @@
 
 <%
   if has_access?
-    @certificates = Certificate.where(member_profile_id: @member.id).desc(:year).page(params[:page]).per(10)
+    @certificates = Certificate.where(member_profile_id: @member.id).sort_title.page(params[:page]).per(10)
   else
-    @certificates = Certificate.where(is_hidden: false, member_profile_id: @member.id).desc(:year).page(params[:page]).per(10)
+    @certificates = Certificate.where(is_hidden: false, member_profile_id: @member.id).sort_title.page(params[:page]).per(10)
   end
 %>