Question

The files are saved to public/data using:

def upload_vault_data        
    if params[:dump][:file]
        uploaded_io = params[:dump][:file]
        File.open(Rails.root.join('public', 'data', "data_#{session[:campaign_id]}_#{uploaded_io.original_filename}"), 'w') do |file|
            file.write(uploaded_io.read)
        end
    end
end

This works as expected, but how to let the user delete the file once it has been uploaded?

Answer 1

Rails allows you to execute system commands using the method called “system”.

eg.

system 'ls'

More info here: Execute script with Ruby on Rails?

In your case, you can probably do a

system "rm #{path-to-my-file}"