1、添加返回状态

2、修改返回ID转换为字符

@@ -15,11 +15,28 @@ class MongoResult
 
     public function lastInsertId()
     {
+        return $this->__get('_id')->__toString();
+    }
+
+    public function lastInsertObject()
+    {
         return $this->__get('_id');
     }
 
+    /**
+     * @return bool
+     */
     public function getStatus()
     {
+        $status = $this->__get('status');
+        if (!empty($status['ok']) && $status['ok'] == 1) {
+            return true;
+        }
+        return false;
+    }
+
+    public function getStatusData()
+    {
         return $this->__get('status');
     }