issue按更新时间排序

app/controllers/issues_controller.rb

@@ -85,7 +85,7 @@ class IssuesController < ApplicationController
       params[:page] = (params[:page] || 1).to_i + 1 #页码需要加1
       @offset ||= @issue_pages.offset
       @issues = @query.issues(:include => [:assigned_to, :tracker, :priority, :category, :fixed_version],
-                              :order => sort_clause,
+                              :order => 'issues.updated_on desc',
                               :offset => @offset,
                               :limit => @limit)
       if params[:set_filter]

app/models/journal.rb

@@ -17,10 +17,10 @@
 
 class Journal < ActiveRecord::Base
   include UserScoreHelper
-  belongs_to :journalized, :polymorphic => true
+  belongs_to :journalized, :polymorphic => true,:touch => true
   # added as a quick fix to allow eager loading of the polymorphic association
   # since always associated to an issue, for now
-  belongs_to :issue, :foreign_key => :journalized_id
+  belongs_to :issue, :foreign_key => :journalized_id,:touch => true
 
   belongs_to :user
   has_many :details, :class_name => "JournalDetail", :dependent => :delete_all