From 946dc0621b124c24f648eba0c1c85e796fe7e85f Mon Sep 17 00:00:00 2001
From: Manson Wang <manson@rulingcom.com>
Date: Fri, 18 Oct 2013 17:51:15 +0800
Subject: [PATCH] Update Remote annoucement, annoucement will be deleted when
 remote site disabled or deleted it

---
 lib/remote_announcement.rb | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/lib/remote_announcement.rb b/lib/remote_announcement.rb
index 75fd43d20..40c927e57 100644
--- a/lib/remote_announcement.rb
+++ b/lib/remote_announcement.rb
@@ -7,6 +7,7 @@ require 'date'
 @coll_bulletin = @db["bulletins"]
 @bulletin_links = @db["bulletin_links"]
 @coll_cat =  @db["bulletin_categories"]
+@updated_bulletins = Array.new
 
 @categories = @coll_cat.find().to_a.inject({}) do |categories, category|
     categories[category['key']] = category['_id']
@@ -70,6 +71,7 @@ def get_remote_bulletins_json(url)
                     is_hidden: false }
 
         this_bulletin = @coll_bulletin.find_one(:$and => [{ :sn => bulletin[:sn]},{ :site => bulletin[:site]}])
+        @updated_bulletins.push({:sn => bulletin[:sn],:site => bulletin[:site] })
         # p bulletin
 
         unless this_bulletin
@@ -132,4 +134,17 @@ def get_remote_bulletins_json(url)
 end
 
 get_remote_bulletins_json("http://president.fgu.edu.tw/remote_annoucement/get_news2.php")
-get_remote_bulletins_json("http://car.fgu.edu.tw/remote_annoucement/get_news2.php")
\ No newline at end of file
+get_remote_bulletins_json("http://car.fgu.edu.tw/remote_annoucement/get_news2.php")
+
+# Delete bulletins that had been removed form remote sites
+# Find all remote bulletins on server
+local_bulletins = @coll_bulletin.find({ site: { :$exists => true } })
+
+# Check if each remote bulletins on server exist in the updated bulletins
+local_bulletins.each do |local_bulletin|
+    result = @updated_bulletins.select {|remote_bulletin| remote_bulletin[:sn] ==  local_bulletin["sn"] and remote_bulletin[:site] ==  local_bulletin["site"]}
+    if result.length == 0
+        @coll_bulletin.remove(:$and => [{ :sn => local_bulletin["sn"]},{ :site => local_bulletin["site"]}])
+        p "Delete: "+local_bulletin["site"]+"-"+local_bulletin["sn"]
+    end
+end
\ No newline at end of file