fix error

app/controllers/admin/feeds_controller.rb

@@ -2,12 +2,12 @@ class Admin::FeedsController < OrbitAdminController
 	layout :compute_layout
 	helper_method :search_all_words
 	def compute_layout
-    if action_name== 'annc_content'
-      false
-    else
-      'back_end'
-    end
-  end
+	  if action_name== 'annc_content'
+	  	false
+	  else
+	  	'back_end'
+	  end
+	end
 	def index
 		@site_feeds = SiteFeed.all.group_by(&:remote_site_url)
 		@school_urls = @site_feeds.keys

app/models/site_feed_annc.rb

@@ -20,7 +20,7 @@ class SiteFeedAnnc
     Array(self[:all_contents_for_feed]).collect do |v|
       tmp = v
       if hidden_annc.exclude?(v['id']) && !tmp["title_translations"][locale].blank?
-        if self.channel_key == "announcement"
+        if self.channel_key == "announcement" && (tmp["postdate"].blank? || tmp["postdate"].to_time<=Time.now)
           tmp['statuses'] = []
           if self[:top_list].count == 0 || self[:top_list].exclude?(tmp['id'])
             tmp[:is_top] = false