fix feed cache error

app/controllers/admin/announcements_controller.rb

@@ -154,6 +154,7 @@ class Admin::AnnouncementsController < OrbitAdminController
   def createfeed
     announcement_feed = BulletinFeed.new(feed_params)
     announcement_feed.save
+    create_feed_cache(nil,announcement_feed)
     feeds = BulletinFeed.all.asc(:created_at)
     render :partial => "feed", :collection => feeds
   end
@@ -162,6 +163,7 @@ class Admin::AnnouncementsController < OrbitAdminController
     ann_feed  = BulletinFeed.find(params[:id])
     ann_feed.update_attributes(feed_params)
     ann_feed.save
+    create_feed_cache(nil,ann_feed)
     feeds = BulletinFeed.all.asc(:created_at)
     render :partial => "feed", :collection => feeds
   end
@@ -481,7 +483,8 @@ class Admin::AnnouncementsController < OrbitAdminController
     params.require(:announcement_setting).permit!
   end
 
-  def create_feed_cache(bulletin)
+  def create_feed_cache(bulletin=nil,bulletin_feed=nil)
+    if !bulletin.nil?
       BulletinFeed.where(:tag_ids.in => Array(bulletin.tag_ids).collect{|v| v.to_s}).each do |bulletin_feed|
         uid = bulletin_feed.uid
         uri = URI(request.protocol + request.host_with_port + "/xhr/announcements/feed/#{uid}.json")
@@ -492,5 +495,15 @@ class Admin::AnnouncementsController < OrbitAdminController
           end
         end
       end
+    elsif !bulletin_feed.nil?
+      uid = bulletin_feed.uid
+      uri = URI(request.protocol + request.host_with_port + "/xhr/announcements/feed/#{uid}.json")
+      Thread.new do
+        res_net = Net::HTTP.start(uri.host, uri.port,:use_ssl => uri.scheme == 'https',open_timeout: 60,read_timeout: 60) do |http|
+          req = Net::HTTP::Get.new(uri)
+          http.request(req)
+        end
+      end
+    end
   end 
 end

app/models/bulletin_feed.rb

@@ -5,5 +5,7 @@ class BulletinFeed
 
 	field :title, as: :slug_title, type: String, localize: true
 	field :tag_ids, type: Array, default: []
-
+  before_save do
+    BulletinFeedCache.where(uid: self.uid).destroy
+  end
 end

lib/bulletin_model/cache.rb

@@ -10,7 +10,7 @@ module BulletinModel
         AnnsCache.where(parent_id:self.id).destroy
       elsif self.class == Bulletin || (self.class == Page && self.module == "announcement")
         if self.class == Bulletin
-          BulletinFeedCache.where(:tag_ids.in => Array(self.tag_ids).collect{|v| v.to_s}).destroy
+          BulletinFeedCache.where(:uid.in => BulletinFeed.where(:tag_ids.in => Array(self.tag_ids).collect{|v| v.to_s}).pluck(:uid)).destroy
         end
         AnnsCache.all.destroy
       end