To access files in rails, you can use the Ruby File Class
http://ruby-doc.org/core/classes/File.html#M002579
You can put this into a method in the model. Then either call it
specifically from the controller, or use an after_update callback to
automatically create the file after the object has been saved to the
database
def save_file(filename)
File.open "#{RAILS_ROOT}/tmp/#{filename}", 'w' do |f|
f.write contents
end
end
Tonypm
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