如何拥有params和url

如何拥有params和url_for的URL？(How do I have a URL with params and a url_for?)

我只是想为我的网站设置excel下载选项。 我想做的就是：

<%= link_to 'Export', export_to_excel_path(:param => @item.id), url_for(:format => 'xls') %>

我想给我的用户一个导出到excel的链接，附加的参数。 我收到以下错误：

undefined method `stringify_keys' for "/controller/show.xls":String

我需要使用url_for，因为在export_to_excel中，我有一个

respond_to

为了响应.xls MIME类型文件。 我正在使用to_xls gem，一切正常，但我无法弄清楚这个链接。

I'm just trying to setup excel downloading option for my site. All I want to do is:

<%= link_to 'Export', export_to_excel_path(:param => @item.id), url_for(:format => 'xls') %>

I want to give my user a link to export to excel, with the additional param. I get the following error:

undefined method `stringify_keys' for "/controller/show.xls":String

I need to use url_for because in export_to_excel, I have a

respond_to

in order to respond with a .xls MIME type file. I am using the to_xls gem, and everything works fine except that I'm not able to figure out this link.

最满意答案

归功于jdoe：

<%= link_to 'Export', export_to_excel_path(:param => @item.id, :format => 'xls') %>

All credit to jdoe:

<%= link_to 'Export', export_to_excel_path(:param => @item.id, :format => 'xls') %>