ruby-on-rails - 对于存在的路由，为什么我会得到 'no route matches' ？

Question

这是错误:

没有路由匹配 {:action=>"send_to_client", :controller=>"stages"}

对应这一行:

<%= link_to "<span class='icon send-to-client-icon' title='Send to Client' id='send-to-client'> </span>".html_safe, send_to_client_stage_path(@stage), :id => stage.id, :confirm => "This will send #{stage.name.capitalize} to #{stage.client.email}. Are you sure you are ready?" %>

在此_show_table.html.erb

<%

if @upload != nil
    stage = @upload.stage
end

%>
<h1 class="panel-header">Images</h1>

<% if stage == nil %>
    <div class="images_menu">
        <%= link_to "<span class='icon send-to-client-icon' title='Send to Client' id='send-to-client'> </span>".html_safe, send_to_client_stage_path(@stage), :id => stage.id, :confirm => "This will send #{stage.name.capitalize} to #{stage.client.email}. Are you sure you are ready?" %>      
        <span class="icon compare-icon" data-url="<%= compare_stage_path(stage)%>" title="Compare Images" id="compare-images"> </span>
    </div>
<% end %>

这是我的routes.rb:

resources :stages do
    member do
      get :step
      get :compare
      get :send_to_client
    end
  end

问题是这部分_show_table.html.erb位于我的uploads模型的 View 文件夹中......而不是stages型号。

当我在 stages 模型中执行 link_to 时，它工作正常。一旦我将其放入 uploads 模型中，它就会抛出该错误。

为什么会这样？

Edit1:这是 stages Controller 的 send_to_client 操作:

def send_to_client
        stage = Stage.find(params[:id])
        ClientMailer.send_stage(stage).deliver
        if ClientMailer.send_stage(stage).deliver
            flash[:notice] = "Successfully sent to client."
            redirect_to("/")
        else
            flash[:notice] = "There were problems, please try re-sending."
            redirect_to("/")
        end
    end

Answer 1

如果您使用send_to_client_stage_path(nil)，Rails 将引发 ActionController::RoutingError。

您混淆了@stage 和stage。如果您没有在 Controller 操作中定义 @stage ，则它将是 nil 并引发错误。在这种情况下，只需使用@upload.stage。

喜欢:

<% if @upload.stage %>
  <%= link_to "...", send_to_client_stage_path(@upload.stage), :confirm => "..." %>
<% end %>

如果您想使用@stage，只需在操作中使用@stage = @upload.stage 定义它，然后使用它来代替@upload。阶段:

<% if @stage %>
  <%= link_to "...", send_to_client_stage_path(@stage), :confirm => "..." %>
<% end %>