diff --git a/app/helpers/welcome_helper.rb b/app/helpers/welcome_helper.rb
index 7b461cee0..5a103e015 100644
--- a/app/helpers/welcome_helper.rb
+++ b/app/helpers/welcome_helper.rb
@@ -47,6 +47,18 @@ module WelcomeHelper
     sort_contest_by_hot
   end
 
+  def cal_memos_count event
+    return nil if event.parent_id
+    event.replies_count
+  rescue NoMethodError
+    nil
+  end
+  
+  def cal_issues_count event
+    event.journals.count
+  rescue NoMethodError
+    nil
+  end
   
 
   def time_tag_welcome time
diff --git a/app/models/memo.rb b/app/models/memo.rb
index a06d8dcf5..f18037f04 100644
--- a/app/models/memo.rb
+++ b/app/models/memo.rb
@@ -23,7 +23,8 @@ class Memo < ActiveRecord::Base
 				  :type => Proc.new {|o| o.parent_id.nil? ? 'Forum' : 'Memo'},
 				  :url => Proc.new {|o| {:controller => 'memos', :action => 'show', :forum_id => o.forum_id}.merge(o.parent_id.nil? ? {:id => o.id} : {:id => o.parent_id, :anchor => "reply-#{o.id}"})}
 	acts_as_activity_provider :author_key => :author_id,
-							  :func => 'memos'
+							  :func => 'memos',
+							  :timestamp => 'created_at'
 							  # :find_options => {:type => 'memos'}
 	# acts_as_watchable
 
diff --git a/lib/plugins/acts_as_activity_provider/lib/acts_as_activity_provider.rb b/lib/plugins/acts_as_activity_provider/lib/acts_as_activity_provider.rb
index 269a889df..bf53509f7 100644
--- a/lib/plugins/acts_as_activity_provider/lib/acts_as_activity_provider.rb
+++ b/lib/plugins/acts_as_activity_provider/lib/acts_as_activity_provider.rb
@@ -82,6 +82,9 @@ module Redmine
             scope.all(provider_options[:find_options].dup)
           end
 
+          # 为了首页获取数据基本复制了上面的方法，改变了用户查看权限，增加了对讨论区的识别。
+          # 因为新建了讨论区的内容，没有与项目方法混合，但是 event_type 取值类型还在共用，可能会对项目活动取值性能造成影响
+          # 不过鉴于项目参与查询的条件减少，而增加的时间没有可见增长，重写event_type 的类型需要设计到lib，暂时不做改动
           def find_events1(event_type, user, from, to, options)
             provider_options = activity_provider_options[event_type]
             raise "#{self.name} can not provide #{event_type} events." if provider_options.nil?