Question

使用Rails 5，如何创建提交RESTful操作的表单？

在我的路线文件中，我有：

  resources :people do
    collection do
      get 'image/:id', :to => "people#image", :as => 'image'
      get 'ranks', :to => "people#ranks", :as => 'ranks'
      get 'search/:search(.:format)', to: 'people#search'
    end
  end

所以我想知道如何构建一个提交“搜索”动作的表单。

我尝试了以下内容：

<%= form_tag(people_search_path) do %>
  <%= text_field_tag :search %>
  <%= submit_tag 'Search' %>
<% end %>

但是这会导致以下错误：

undefined local variable or method `people_search_path' for #<#<Class:0x00007ff2afc59168>:0x00007ff2afc50f68>

Answer 1

如果您MY_STRING.format，则会看到您的搜索路径没有名称：

format_name = partial(str.format, age=30)
print format_name(MY_STRING, name='sameer')
#  sameer30
print format_name('another string with {name} and {age}', name='sameer')
# another string with sameer and 30

相反，如果你这样做：

rake routes

您会看到您的路径现在有一个名称：

image_people GET    /people/image/:id(.:format)        people#image
ranks_people GET    /people/ranks(.:format)            people#ranks
             GET    /people/search/:search(.:format)   people#search
      people GET    /people(.:format)                  people#index
             POST   /people(.:format)                  people#create
  new_person GET    /people/new(.:format)              people#new
 edit_person GET    /people/:id/edit(.:format)         people#edit
      person GET    /people/:id(.:format)              people#show
             PATCH  /people/:id(.:format)              people#update
             PUT    /people/:id(.:format)              people#update
             DELETE /people/:id(.:format)              people#destroy

您可以将其用作resources :people do collection do get 'image/:id', :to => "people#image", :as => 'image' get 'ranks', :to => "people#ranks", :as => 'ranks' get 'search/:search(.:format)', to: 'people#search', as: :search end end。

顺便说一句，我相信

  image_people GET    /people/image/:id(.:format)         people#image
  ranks_people GET    /people/ranks(.:format)             people#ranks
 search_people GET    /people/search/:search(.:format)    people#search
        people GET    /people(.:format)                   people#index
               POST   /people(.:format)                   people#create
    new_person GET    /people/new(.:format)               people#new
   edit_person GET    /people/:id/edit(.:format)          people#edit
        person GET    /people/:id(.:format)               people#show
               PATCH  /people/:id(.:format)               people#update
               PUT    /people/:id(.:format)               people#update
               DELETE /people/:id(.:format)               people#destroy

位是不必要的，您可以这样做：

search_people_path

但如果我是你，我会这样做：

(.:format)

哪个会给你：

post 'search/:search', to: 'people#search', as: :search

然后，我会按照Anees Muhammed的建议更新您的表单（我使用resources :people do collection do get 'image/:id', :to => "people#image", :as => 'image' get 'ranks', :to => "people#ranks", :as => 'ranks' get :search, to: 'people#search', as: :search end end代替image_people GET /people/image/:id(.:format) people#image ranks_people GET /people/ranks(.:format) people#ranks search_people GET /people/search(.:format) people#search people GET /people(.:format) people#index POST /people(.:format) people#create new_person GET /people/new(.:format) people#new edit_person GET /people/:id/edit(.:format) people#edit person GET /people/:id(.:format) people#show PATCH /people/:id(.:format) people#update PUT /people/:id(.:format) people#update DELETE /people/:id(.:format) people#destroy）：

:terms

然后，当你提交时，你应该得到类似的东西：

:search

您可以通过<%= form_tag search_people_path, method: :get do %> <%= text_field_tag :terms %> <%= submit_tag 'Search' %> <% end %>访问您的条款。

对此有BTW，没有“非RESTful”。 IMO完全一致the Guide用于添加RESTful操作。

Answer 2

您应该使用search_people_path代替people_search_path。但我不认为改变会带你到你想要达到的目标。由于您的路线为get 'search/:search(.:format)', to: 'people#search'，因此我们希望您为关键字:search提供值，以构建类似/people/search/yoursearchterm的网址search_people_path(yoursearchterm) }。要使您的功能正常工作，请将表单更改为

<%= form_tag search_people_path, method: :get do %>
  <%= text_field_tag :search %>
  <%= submit_tag 'Search' %>
<% end %>

然后在您的控制器中

def search
  params[:search]
end

还有到

的路线

get 'search', to: 'people#search'

已更新

由于您尝试将表单直接提交到search/:search这样的休息路径，我相信没有直接的方法来实现相同的目标，因为表单的工作方式。但是，如果您在提交表单时只需要yourwebsite.com/search/yoursearchterm这样的休息路径，则可以通过一些方法来实现此目的。您必须在提交表单时写一段js并使用输入值将请求转发到您的路线，或者您可以在控制器中对路线执行重定向，如下所示。
路线：

resources :people do
    collection do
      get 'search', to: 'people#search_people'
      get 'search/:search', to: 'people#search'
    end
  end

因此，首先将表单提交给search_people操作，然后重定向到使用params进行搜索。在控制器中

def search_people
    redirect_to search_people_path(params[:search])
end

这会为您提供一个网址yoursite.com/people/search/searchterm，然后在您的search操作中，您可以使用搜索参数。

希望这有帮助。

如何创建提交到RESTful操作的Rails表单？

2 个答案: