带有可选参数优先级的 Rails 路线答案

【问题标题】：Rails routes with optional parameters priorities带有可选参数优先级的 Rails 路线
【发布时间】：2023-03-08 19:44:02
【问题描述】：

我的路由文件中有一个奇怪的问题。这是我需要了解的部分这条路线不起作用

  # V3
  # V3 - Home Page
  match '/:locale' => 'v3/home#index', :constraints => V3Constraint, :as => :home
  # V3 - Search
  match '(/:locale)/products/search' => 'v3/products#search', :constraints => V3Constraint
  # V3 - Categories index
  match '(/:locale)/categories/(:parent_category((/*path)/:category))/(:full)' => 'v3/products#index', :constraints => V3Constraint, :as => :category
  # V3 - Prduct Page
  match '/:locale/products/:product' => 'v3/products#show', :constraints => V3Constraint, :as => :product
  match '(/:locale)/search_amazon' => 'v3/products#search_amazon', :constraints => V3Constraint
  # EOF V3

但是这个工作

#V3 - Search
  match '(/:locale)/products/search' => 'v3/products#search', :constraints => V3Constraint
  # V3 - Categories index
  match '(/:locale)/categories/(:parent_category((/*path)/:category))/(:full)' => 'v3/products#index', :constraints => V3Constraint, :as => :category
  # V3 - Product Page
  match '/:locale/products/:product' => 'v3/products#show', :constraints => V3Constraint, :as => :product
  match '(/:locale)/search_amazon' => 'v3/products#search_amazon', :constraints => V3Constraint
  # V3 - Home Page
  match '/:locale' => 'v3/home#index', :constraints => V3Constraint, :as => :home

如果我使主页路由的优先级低于其他路由，则它可以工作，但如果它像其他路由一样位于顶部这条路线：匹配 '(/:locale)/search_amazon' => 'v3/products#search_amazon', :constraints => V3Constraint 将引导至主页。

谁能解释一下为什么会这样？

谢谢。

【问题讨论】：

标签： ruby-on-rails ruby-on-rails-3 routing routes rails-routing

【解决方案1】：

像<yourdomain>/search_amazon 这样的路由将匹配这两条路由中的第一个

match '(/:locale)/search_amazon' => 'v3/products#search_amazon', :constraints => V3Constraint

在这种情况下，它将匹配，因为 locale 在此处是可选的。

match '/:locale' => 'v3/home#index', :constraints => V3Constraint, :as => :home

虽然在这里它将匹配 search_amazon 作为 locale 的值。

【讨论】：