beego的关联查询如何自定义外键名称

Question

type UserReaded struct {
   Id        uint32 `orm:"auto;size(11)"` 
 Uid     uint32 `orm:"size(11)"` 
 NovId    uint32 `orm:"size(11)"` 
 ChapterNo      uint32 `orm:"size(11)"` 
 CreatedAt uint32 `orm:"size(11);default(0)"` 
 UpdatedAt uint32 `orm:"size(11);default(0)"`
 Novel *Novel `orm:"null;rel(one);on_delete(set_null)"`
}

func (m *UserReaded) ListReaded(uid uint32) []*UserReaded {
   list := make([]*UserReaded, 0)
   m.query().Filter("uid", uid).RelatedSel().All(&list)
   return list
}

这样关联默认是使用novel_id，但是我想要自定义成nov_id,请问如何修改