crm book show

app/Modules/Book/Services/CrmBookAutoRecommendService.php

@@ -85,7 +85,9 @@ class CrmBookAutoRecommendService
    {
       $value = Redis::get($this->redis_key);
       if ($value) {
-         return json_decode($value, true);
+         $result =  json_decode($value, true);
+          if($result) return $result;
+          return  $this->setRecommendBooksRedis();
       } else {
          return  $this->setRecommendBooksRedis();
       }
@@ -120,5 +122,6 @@ class CrmBookAutoRecommendService
          });
          return $results;
       }
+      return [];
    }
 }