Hi @suhli, I checked the implement of cursor.Next(...) in mongo-go-driver, the error is return by

func (c *Cursor) Err() error { return c.err }

And qmgo has function Err() too, so I think you should pass error by Err() with cursor.err, this pr should change codes like:

func (c *Cursor) Next(result interface{}) bool {
......
	if c.cursor.Next(c.ctx) {
		err = c.cursor.Decode(result)
		if err != nil {
			c.err = err
			return false
		}
		return true
	}
......
}

Please share your idea.

Hi @suhli, I checked the implement of cursor.Next(...) in mongo-go-driver, the error is return by

func (c *Cursor) Err() error { return c.err }

And qmgo has function Err() too, so I think you should pass error by Err() with cursor.err, this pr should change codes like:

func (c *Cursor) Next(result interface{}) bool {
......
	if c.cursor.Next(c.ctx) {
		err = c.cursor.Decode(result)
		if err != nil {
			c.err = err
			return false
		}
		return true
	}
......
}

Please share your idea.

sure,and we just do that outside？

...
if !cr.Next(result) {
   if cr.err != nil{
     return cr.err
   }
   return ErrNoSuchDocuments
}
....

@jiangz222 ok,please check the file changes