diff --git a/app/models/project.rb b/app/models/project.rb
index 847c536da..c68e73369 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -1217,18 +1217,30 @@ class Project < ActiveRecord::Base
 
 
   def create_project_ealasticsearch_index
-    if self.is_public == 1
+    if self.is_public
     self.__elasticsearch__.index_document
     end
   end
   def update_project_ealasticsearch_index
-    if self.is_public == 1
-    self.__elasticsearch__.update_document
+    if self.is_public #如果是初次更新成为公开的情况，会报错，那么这条记录尚未被索引过。没有报错就是更新的其他属性
+      begin
+        self.__elasticsearch__.update_document
+      rescue => e
+        self.__elasticsearch__.index_document
+      end
+    else #如果是更新成为私有的，那么索引就要被删除
+      begin
+        self.__elasticsearch__.delete_document
+      rescue => e
+
+      end
     end
   end
   def delete_project_ealasticsearch_index
-    if self.is_public == 1
-    self.__elasticsearch__.delete_document
+    begin
+      self.__elasticsearch__.delete_document
+    rescue => e
+
     end
   end