Making @headers['Refresh'] and send_file work together?

I’ve got a Rails 1.1 app where people can click a link to download a
custom-generated file. The link to “Download Zip” goes to /
controller/get_zip. That action looks like this:

def get_zip
@cart = find_cart
ids = Array.new
@cart.songs.each do |song|
ids.push song.id
end

 args = ids.join(" ")
 zipfile = `#{RAILS_ROOT}/perl/buildzip.pl #{args}`
 begin
   size = File.stat(zipfile).size
   @cart.empty!
   filename = "out.zip"
   send_file(zipfile, :filename => filename, :type =>

“application/zip”, :str
eaming => false)
rescue
flash[:warning] = “Zip file no longer exists - did you already
download it
?”
redirect_to(:controller => “/online”)
end
end

I’d like to have the user get sent to a different page a few seconds
after the download starts. In a previous incarnation of this app,
I’d set the HTTP “Refresh” header before sending the binary data. In
fact, on a standard controller action that just renders RHTML, I can do:

  @headers["Refresh"] = '5, url=http://www.cnn.com/'

And it works as expected - 5 seconds after the action is rendered,
I’m redirected.

However, if I set that header before doing the send_file, nothing
happens. The file downloads properly - no problems there - but no
redirect. Looking through the source, it doesn’t seem like the
@headers are getting overwritten, just updated. But it’s certainly
not refreshing.

Any thoughts on how to make this work (or another way to accomplish
what I’m trying to do?

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs