rails helper path接受空params

Question

有没有办法将空参数传递给rails中的辅助路径？

具体做法是：

get 'movies/director/:director', to: 'movies#search_by_director', as: :search_by_director

如果接受导演的网址为空（ / movies / director / ），我希望 search_by_director_path（nil）仍然运行 search_by_director < / em>动作，我会处理那里的零值

目前，当我使用nil导演尝试 search_by_director_path（@ movie.director）时会发生什么：

  

没有路线匹配{：action =＆gt;“search_by_director”，：controller =＆gt;“movies”，：director =＆gt;“”，：id =＆gt;“1”}缺少必需的键：[：director]

Answer 1

get 'movies/director/(:director)', to: 'movies#search_by_director', as: :search_by_director怎么样？