Question

hi help me in simple question:

how to released simple download:

i my public/data i have some.txt or some.pdf file ( with some text )

and i want to user click in some button and start download this file.

i do something like that

<%= link_to "Terms" ,:action => :download, :file_name => 'some.txt' %>

def download
    send_file "#{RAILS_ROOT}/public/data/#{params[:file_name]}", :type=>"application/zip"
end 

But what to do next?

PS if you have some tutorial or example on this subject (like downloading file), I would be very grateful

Answer 1

You are definitely missing a route in your routes.rb:

resources :posts do
  get :download, :on => :collection

  resource :comments
end

and then you can have a link like:

<%= link_to "Terms" ,:action => :download, :file_name => 'some.txt' %>

that will probably generate something like:

<a href="/posts/download?file_name=some.txt">Terms</a>

I think it’s still not the best solution, but solves your problem.

I recommend a quick look at this part of the Rails Guides to clarify this:
http://guides.rubyonrails.org/routing.html#adding-more-restful-actions

A complete read of this guides is always good and highly recommended too.