我是Rails的新手,遇到了这个问题。
我有一个books_controller,我在其中定义了一个名为download的新动作:
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"
我想创建一个像/ books / download / 10这样的URL来调用下载操作。
我不确定如何创建该链接。我试过在路由上阅读Rails指南,但我很困惑。
我试过了
<td><%= link_to books_download_path(book) %></td>
它显然不起作用。
undefined method `books_download_path' for #<#<Class:0x682ac40>:0x482cad8>
我很感激你的帮助。
由于
P.S。也许/ books / 10 / download比/ books / download / 10
更有意义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 资源:作者
resources :books do
get :download, :on => :member, :to => 'books#download'
end
端
答案 0 :(得分:2)
对于Rails 3,试试这个
resources :books do
get :download, :on => :member, :to => 'books#download'
end
现在,在您的观看中,您可以使用。
<%= link_to 'Download', download_book_path(book) %>
这将生成books/10/download
类型链接。
答案 1 :(得分:0)
尝试以下
match '/books(/download(/:id))', :controller => "books", :action => "download", :as => "books_download"
参考: - naming_routes
答案 2 :(得分:0)
你必须这样做:
<%= link_to "Download", download_books_path + "/#{book.id}" %>
答案 3 :(得分:0)
对于rails 3,你应该写:
resources :books do
member do
get 'download'
end
end