Rails Routes：更改资源标识符路径名？总是使用 params[:model_id] 而不是 params[:id]
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【中文标题】Rails Routes：更改资源标识符路径名？总是使用 params[:model_id] 而不是 params[:id]【英文标题】：Rails Routes: change resource identifier path name? always use params[:model_id] instead of params[:id] 【发布时间】：2018-10-01 09:12:12 【问题描述】：我不知道怎么问这个问题...
但我正在使用嵌套 ROUTES，如下所示。
我喜欢知道 Business ID 总是可以使用params[:business_id] 找到，显然除了实际的业务控制器需要我使用params[:id]。
有没有办法将路由资源 id 参数更改为始终为 :business_id 而不必像 Business.find(params.values_at(:business_id, :id).first)？？
business_exports GET /businesses/:business_id/exports(.:format) businesses/exports#index
POST /businesses/:business_id/exports(.:format) businesses/exports#create
new_business_export GET /businesses/:business_id/exports/new(.:format) businesses/exports#new
edit_business_export GET /businesses/:business_id/exports/:id/edit(.:format) businesses/exports#edit
business_export GET /businesses/:business_id/exports/:id(.:format) businesses/exports#show
PATCH /businesses/:business_id/exports/:id(.:format) businesses/exports#update
PUT /businesses/:business_id/exports/:id(.:format) businesses/exports#update
DELETE /businesses/:business_id/exports/:id(.:format) businesses/exports#destroy
business_replenishments GET /businesses/:business_id/replenishments(.:format) businesses/replenishments#index
business_offer_prices GET /businesses/:business_id/offer_prices(.:format) businesses/offer_prices#index
POST /businesses/:business_id/offer_prices(.:format) businesses/offer_prices#create
business_unmatched_listings GET /businesses/:business_id/unmatched_listings(.:format) businesses/unmatched_listings#index
POST /businesses/:business_id/unmatched_listings(.:format) businesses/unmatched_listings#create
business_profit_loss_reports GET /businesses/:business_id/profit_loss_reports(.:format) businesses/profit_loss_reports#index
businesses GET /businesses(.:format) businesses#index
POST /businesses(.:format) businesses#create
new_business GET /businesses/new(.:format) businesses#new
edit_business GET /businesses/:id/edit(.:format) businesses#edit
business GET /businesses/:id(.:format) businesses#show
PATCH /businesses/:id(.:format) businesses#update
PUT /businesses/:id(.:format) businesses#update
DELETE /businesses/:id(.:format) businesses#destroy
【问题讨论】：
我已经为您的问题添加了答案，但是，作为旁注，您应该问自己为什么要摆脱 Rails 的默认:id 作为后者的动态部分路线。
我想在 BUSINESS 级别共享一个***身份验证控制器，并且不必在 params[:id] 和 params[:business_id] 之间来回切换
【参考方案1】：
如果您使用的是 Rails 4+，则可以使用 resources 方法中的 param 选项来完成此操作
Overriding Route Parameters
假设你的代码看起来像
resources :businesses
您可以添加这样的参数
resources :businesses, param: :business_id
应该生成路由
businesses GET /businesses(.:format) businesses#index
POST /businesses(.:format) businesses#create
new_business GET /businesses/new(.:format) businesses#new
edit_business GET /businesses/:business_id/edit(.:format) businesses#edit
business GET /businesses/:business_id(.:format) businesses#show
PATCH /businesses/:business_id(.:format) businesses#update
PUT /businesses/:business_id(.:format) businesses#update
DELETE /businesses/:business_id(.:format)
更新
由于您使用相同的嵌套资源生成这些路由，因此您必须执行以下操作
resources :businesses, param: :business_id
resources :businesses, only: [] do
resources :exports
...
end
【讨论】：
你好 @leo 这不起作用，因为嵌套路由将有params[:business_business_id]
此时您必须分离嵌套资源并复制resources 路由。如果您展示路线的布局方式会更有帮助。
BINGO - 我在任何地方都没有见过这个。你赢了互联网积分！【参考方案2】：
更干净的方法是使用member
resources :businesses, param: :business_id do
member do
resources :exports
...
end
end
【讨论】：
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