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[英]How do i route a particular controller action to a particular form in rails?
[英]How do I route to a new rails controller action
我是Rails的新手,遇到了這個問題。
我有一個books_controller,我在其中定義了一個名為download的新動作:
def download
@book = Book.find(params[:id])
return send_file @book.get_filepath, :type => 'application/pdf', :filename => @book.get_filename
end
我的routes.rb就像:
resources :books
match '/books(/download(/:id))', :controller => "books", :action => "download"
我想創建一個像/ books / download / 10這樣的URL來調用下載操作。
我不確定如何創建該鏈接。 我試過在路由上閱讀Rails指南,但我很困惑。
我努力了
<td><%= link_to books_download_path(book) %></td>
它顯然不起作用。
undefined method `books_download_path' for #<#<Class:0x682ac40>:0x482cad8>
我很感激你的幫助。
謝謝
PS Maybe / books / 10 / download比/ books / download / 10更有意義
index.html.erb
<table>
<% @recent_books.each do |book| %>
<tr>
<!-- <td><%= image_tag(book.get_thumbnail) %></td> -->
<td><%= truncate(book.get_title, :length => 30) %></td>
<td><%= book.get_author %></td>
<td><%= book.get_summary %></td>
<td><%= truncate(book.get_filename, :length => 30) %></td>
<!-- <td><%= link_to 'Download', book %></td> -->
<td><%= link_to "Download", download_book_path(book) %></td>
</tr>
<% end %>
<table>
的routes.rb
Caliberator :: Application.routes.draw做資源:作者
resources :books do
get :download, :on => :member, :to => 'books#download'
end
結束
對於Rails 3,試試這個
resources :books do
get :download, :on => :member, :to => 'books#download'
end
現在,在您的視圖中,您可以使用。
<%= link_to 'Download', download_book_path(book) %>
這將生成books/10/download
類型鏈接。
試試以下
match '/books(/download(/:id))', :controller => "books", :action => "download", :as => "books_download"
參考: - naming_routes
你必須這樣做:
<%= link_to "Download", download_books_path + "/#{book.id}" %>
對於rails 3,你應該寫:
resources :books do
member do
get 'download'
end
end
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