如何在Ruby on Rails中下载CSV文件？

Question

在我,InvoicesController我有这个:

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

在我index.html.erb看来,我有这两个下载链接:

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

模板index.xsl.erb和index.csv.erb不存在的.

第一个链接有效,即Excel文件下载到用户的计算机.但是,CSV文件在浏览器中呈现,而不是下载.

我还必须做些什么才能让用户下载CSV文件？

谢谢你的帮助.

Answer 1

尝试指定相应的内容标题,并index.csv.erb在format.csv处理程序块中显式呈现模板.

# 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

Answer 2

尝试这个

format.csv do
  response.headers["Content-Type"] = "text/csv; charset=UTF-8; header=present"
  response.headers["Content-Disposition"] = "attachment; filename=invoices.csv"
end