Rails: Refile for documents to download

Question

Using the refile gem, I have uploaded documents (.pdf, .docx, .pptx, etc.). Uploading is fine. When I use attachemnt_url, it produces something like /attachments/...234jksdf2.../document. When I click the link_to, it downloads the document without an extension.

What's happening to make it operate this way? How can I restore my file type sanity?

Answer 1

This is what ended up being the correct solution for me.

link_to "Download file", attachment_url(@document, :file, format: @document.file_extension)

def file_extension 
    require 'rack/mime'   
    Rack::Mime::MIME_TYPES.invert[document_content_type].split('.').last 
end