如何编写 Rails 路由来识别特定参数

Question

我有如下路线。

match "/shop/:city(/:filter1)(/:filter2)(/:filter3/)(:filter4)"  =>  "shop#filter", :method => :post, :as => :shop_filter

我需要的是:city之后，可以是filter1，filter2等。否则

filter1/filter2 一起。

所以我需要这样的路线

match "/shop/:city/:filter1" =>  "shop#filter", :method => :post, :as => :shop_filter

match "/shop/:city/:filter2" => "shop#filter", :method => :post, :as => :shop_filter


match "/shop/:city/:filter1/:filter2" =>  "shop#filter", :method => :post, :as => :shop_filter

match "/shop/:city/:filter1/:filter3"  =>  "shop#filter", :method => :post, :as => :shop_filter

但这里的问题是，当我发送 filter2 或 filter3 时，它才被视为 filter1。

有什么办法可以做到吗？

Answer 1

n-depth filter是个难题。

我推荐你喜欢这个

在 routes.rb 中

match "/shop/:city/:filter" =>  "shop#one_depth_filter", :method => :post, :as => :shop_one_depth_filter
match "/shop/:city/:filter/:subfilter" =>  "shop#two_depth_filter", :method => :post, :as => :shop_two_depth_filter

在 shop_controller.rb 中

def one_depth_filter
    redirect_to root_path unless params[:filter] != 'filter1' && params[:filter] != 'filter2'
end

def two_depth_filter ... end # same logic like one_depth_filter

附加评论。

在 routes.rb 中

match "/shop/:city/*filter" =>  "shop#filter", :method => :post, :as => :shop_filter

在 shop_controller.rb 中

def filter
    filters = params[:filter].split("/")
    # implement
end