create a hash rss site list from mongodb

vendor/built_in_modules/feed/lib/rss_dynamic.rb

@@ -2,12 +2,14 @@
 require 'rss'
 require 'mongo'
 
-#create a hash rss site list
-SITES = Hash[ AnnouncementFeed.all.map {|feed| [feed.name, feed.link]} ]
 
 #base on your DB
 DB_BASE_NAME = "production_0" 
 
+#create a hash rss site list from mongodb
+db = Mongo::Connection.new("localhost", 27017).db("#{DB_BASE_NAME}")
+SITES = Hash[ db["announcement_feeds"].find().entries.collect { |f| [ f["name"], f["link"] ]} ]
+
 yesterday = Time.now - 86400
 two_weeks_ago = Time.new - 60 * 60 * 24 * 14
 
@@ -22,7 +24,7 @@ SITES.each do |name, url|
     feed.items.each do |item|
       category = item.category.to_s.gsub(/\<(\/)*category\>/, '')
 
-      if item.pubDate > yesterday
+      if item.pubDate > two_weeks_ago
         recent_feed[item.title.strip] = { date: item.pubDate, description: item.description.gsub("\r\n", '<br/>').strip,
           link: item.link, category: category, source: name }
       end