Generating unique token on the fly with Rails

Question

I want to generate a token in my controller for a user in the \"user_info_token\" column. However, I want to check that no user currently has that token. Would this code suffice

Answer 1

Maybe you can do something using the actual time. Then you won't need to check if the token was already used by an user.

new_token = Digest::MD5.hexdigest(Time.now.to_i.to_s + rand(999999999).to_s)
user.user_info_token = new_token