Ruby on Rails: How do you check if a file is an image?

Question

How would you check if a file is an image? I\'m thinking you could use an method like so:

def image?(file)
  file.to_s.include?(\".gif\") or file.to_s.includ         


        

Answer 1

I would use the ruby-filemagic gem which is a Ruby binding for libmagic.