DZone Snippets: generation code

ruby: random alphanumeric string

elliottcable (elliott cable) — Mon, 21 Jan 2008 09:03:01 GMT

generate random alphanumeric string 'size' characters long

size = 8; (1..size).map{([*('a'..'z')]+[*('A'..'Z')]+[*(1..9)].map{|n|n.to_s}).instance_eval{self[rand(self.size)]}}.join

Ruby dictionary username generation

elliottcable (elliott cable) — Thu, 13 Sep 2007 13:57:59 GMT

Generate a new random name from dictionary words.



DICT_PATH = '/usr/share/dict/words'

DICT_SIZE = 234936



def self.generated_name words = 2, length = 23

  name = 'a'*(length+1)

  while name.length > length

    name = (1..words).map{%x[sed -n '#{rand(DICT_SIZE)} {p;q;}' '#{DICT_PATH}'].chomp.capitalize}.join

  end

end

Generate random password in ruby

Mickael (Mickael) — Tue, 06 Mar 2007 08:51:55 GMT

Aaron Blohowiak suggests adding this as a public method in user.rb:



def new_random_password

  self.password= Digest::SHA1.hexdigest("--#{Time.now.to_s}--#{login}--")[0,6]

  self.password_confirmation = self.password

end