如何在Ruby on Rails中下载CSV文件？

问题描述：

在我的 InvoicesController 中有以下内容：

def index
  @invoices = current_user.invoices
  respond_to do |format|
    format.html
    format.xls
    format.csv # not working!
  end
end

在我的 index.html .erb 查看我有这两个下载链接：

In my index.html.erb view I have these two download links:

<%= link_to "Download as Excel", invoices_path(:format => "xsl") %>
<%= link_to "Download as CSV", invoices_path(:format => "csv") %>

模板 index.xsl.erb index.csv.erb 也存在。

第一个链接工作，即Excel文件被下载用户的计算机。

The first link works, i.e. the Excel file gets downloaded to the user's computer. However, the CSV file is rendered in the browser and not downloaded.

我必须采取什么措施才能让使用者下载CSV档案？

What must I do to enable users to download CSV files as well?

感谢您的帮助。

答

尝试指定适当的内容 csv 处理程序中的 index.csv.erb 模板显示和块。

Try specifying the appropriate content headers and explicitly rendering your index.csv.erb template in your format.csv handler block.

# app/controllers/invoices_controller.rb
format.csv do
    response.headers['Content-Type'] = 'text/csv'
    response.headers['Content-Disposition'] = 'attachment; filename=invoice.csv'    
    render :template => "path/to/index.csv.erb"
end

如何在Ruby on Rails中下载CSV文件？

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