Fix: A Database Error Occurred when update logs (_log_access_time and _log_response_code) (#830)

Author: ganl

application/libraries/REST_Controller.php

@@ -2212,6 +2212,10 @@ protected function _force_login($nonce = '')
      */
     protected function _log_access_time()
     {
+        if($this->_insert_id == ''){
+            return false;
+        }
+
         $payload['rtime'] = $this->_end_rtime - $this->_start_rtime;
 
         return $this->rest->db->update(
@@ -2230,6 +2234,10 @@ protected function _log_access_time()
      */
     protected function _log_response_code($http_code)
     {
+        if($this->_insert_id == ''){
+            return false;
+        }
+
         $payload['response_code'] = $http_code;
 
         return $this->rest->db->update(