在Rails中,嵌套资源的路由冲突可能会导致问题。要根据被调用的路由确定索引操作的范围,可以使用以下方法:
shallow
路由: 在config/routes.rb
文件中,使用shallow
关键字来定义嵌套资源路由。这将允许您在不包含父资源的情况下直接访问子资源。例如:
shallow do
resources :posts do
resources :comments
end
end
这将生成以下路由:
post_comments GET /posts/:post_id/comments(.:format) comments#index
POST /posts/:post_id/comments(.:format) comments#create
new_post_comment GET /posts/:post_id/comments/new(.:format) comments#new
edit_post_comment GET /posts/:post_id/comments/:id/edit(.:format) comments#edit
post_comment GET /posts/:post_id/comments/:id(.:format) comments#show
PATCH /posts/:post_id/comments/:id(.:format) comments#update
PUT /posts/:post_id/comments/:id(.:format) comments#update
DELETE /posts/:post_id/comments/:id(.:format) comments#destroy
posts GET /posts(.:format) posts#index
POST /posts(.:format) posts#create
new_post GET /posts/new(.:format) posts#new
edit_post GET /posts/:id/edit(.:format) posts#edit
post GET /posts/:id(.:format) posts#show
PATCH /posts/:id(.:format) posts#update
PUT /posts/:id(.:format) posts#update
DELETE /posts/:id(.:format) posts#destroy
这样,您可以根据被调用的路由来确定索引操作的范围。
scope
和as
关键字: 在config/routes.rb
文件中,使用scope
关键字来定义嵌套资源路由。同时,使用as
关键字来定义路由名称。例如:
scope '/posts/:post_id' do
resources :comments, as: 'post_comments'
end
这将生成以下路由:
post_comments GET /posts/:post_id/comments(.:format) comments#index
POST /posts/:post_id/comments(.:format) comments#create
new_post_comment GET /posts/:post_id/comments/new(.:format) comments#new
edit_post_comment GET /posts/:post_id/comments/:id/edit(.:format) comments#edit
post_comment GET /posts/:post_id/comments/:id(.:format) comments#show
PATCH /posts/:post_id/comments/:id(.:format) comments#update
PUT /posts/:post_id/comments/:id(.:format) comments#update
DELETE /posts/:post_id/comments/:id(.:format) comments#destroy
这样,您可以根据被调用的路由来确定索引操作的范围。
通过使用上述方法,您可以根据被调用的路由来确定索引操作的范围,从而避免嵌套资源冲突。
领取专属 10元无门槛券
手把手带您无忧上云