From c5a96e89175ff7c62282a70d9e302595ddca3ff3 Mon Sep 17 00:00:00 2001
From: Bohung <bohung@rulingcom.com>
Date: Wed, 10 Nov 2021 15:18:23 +0800
Subject: [PATCH] Fix bug.

---
 app/models/site_feed_annc.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/models/site_feed_annc.rb b/app/models/site_feed_annc.rb
index 98dc952..e347fcb 100644
--- a/app/models/site_feed_annc.rb
+++ b/app/models/site_feed_annc.rb
@@ -177,6 +177,7 @@ class SiteFeedAnnc
               }
       }
     ]
+    max_len = 0 if (max_len.to_i < 0 rescue true)
     if max_len
       pipeline << {"$limit"=> max_len}
     end