Ruby on Rails Route 未使用 button_to 找到，但未使用 link_to

Question

我的应用程序中的路由出现问题，但我不明白为什么。 我希望有人能解释一下为什么会这样。

非常感谢您的帮助。

<%= link_to 'Show', restaurant_path(restaurant), :id => 'button_show_restaurant', :class => 'btn btn-success' %> 

<%= button_to 'Show', restaurant_path(restaurant), :id => 'button_show_restaurant', :class => 'btn btn-success' %>

link_to 代码正确路由到所需餐厅，但 button_to 产生以下内容：

没有路线匹配 [POST] "/de/restaurants/526fe01e65617271ea000000" 痕迹： actionpack (4.0.0) lib/action_dispatch/middleware/debug_exceptions.rb:21:in call' actionpack (4.0.0) lib/action_dispatch/middleware/show_exceptions.rb:30:incall' railties (4.0.0) lib/rails/rack/logger.rb:38:in call_app' railties (4.0.0) lib/rails/rack/logger.rb:21:inblock in call' activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in block in tagged' activesupport (4.0.0) lib/active_support/tagged_logging.rb:25:intagged' activesupport (4.0.0) lib/active_support/tagged_logging.rb:67:in tagged' railties (4.0.0) lib/rails/rack/logger.rb:21:incall' actionpack (4.0.0) lib/action_dispatch/middleware/request_id.rb:21:in call' rack (1.5.2) lib/rack/methodoverride.rb:21:incall' 机架 (1.5.2) lib/rack/runtime.rb:17:in call' activesupport (4.0.0) lib/active_support/cache/strategy/local_cache.rb:83:incall' 机架 (1.5.2) lib/rack/lock.rb:17:in call' actionpack (4.0.0) lib/action_dispatch/middleware/static.rb:64:incall' railties (4.0.0) lib/rails/engine.rb:511:in call' railties (4.0.0) lib/rails/application.rb:97:incall' 乘客 (4.0.21) lib/phusion_passenger/rack/thread_handler_extension.rb:77:in process_request' passenger (4.0.21) lib/phusion_passenger/request_handler/thread_handler.rb:140:inaccept_and_process_next_request' 乘客 (4.0.21) lib/phusion_passenger/request_handler/thread_handler.rb:108:in main_loop' passenger (4.0.21) lib/phusion_passenger/request_handler.rb:441:inblock (3 个级别) in start_threads'

路线

路由从上到下优先匹配

Helper HTTP 动词路径控制器#Action 路径/网址
welcome_index_path GET (/:locale)/welcome(.:format) 欢迎#index POST (/:locale)/welcome(.:format) 欢迎#create new_welcome_path GET (/:locale)/welcome/new(.:format) Welcome#new edit_welcome_path GET (/:locale)/welcome/:id/edit(.:format) Welcome#edit welcome_path GET (/:locale)/welcome/:id(.:format) 欢迎#show PATCH (/:locale)/welcome/:id(.:format) 欢迎#update PUT (/:locale)/welcome/:id(.:format) 欢迎#update 删除 (/:locale)/welcome/:id(.:format) Welcome#destroy restaurant_path GET (/:locale)/restaurants(.:format) 餐厅#index POST (/:locale)/restaurants(.:format) 餐厅#create new_restaurant_path GET (/:locale)/restaurants/new(.:format) 餐厅#new edit_restaurant_path GET (/:locale)/restaurants/:id/edit(.:format) 餐厅#edit restaurant_path GET (/:locale)/restaurants/:id(.:format) 餐厅#show PATCH (/:locale)/restaurants/:id(.:format) 餐厅#update PUT (/:locale)/restaurants/:id(.:format) 餐厅#update 删除 (/:locale)/restaurants/:id(.:format) 餐厅#destroy root_path GET / 欢迎#index

Answer 1

默认情况下，button_to 发布帖子，而 link_to 获取。所以你想要这个

<%= button_to 'Show', restaurant_path(restaurant), :id => 'button_show_restaurant', :class => 'btn btn-success', :method => :get %>