Class: UID

Inherits:
Object
  • Object
show all
Defined in:
lib/userify/uid.rb

Overview

Usage:

UID.new.to_s => “aWgEPTl1tmebfsQzFP4bxwgy80V” UID.new(5).to_s => “8FsD5” UID.new.to_i => 838068072552051698674007079806269848286804777409 1000000000.base62 => “15ftgG” “123abcABC”.base62 => 225587272106046

By default, UIDs generates random BASE62 string of 27 characters, which is safer than 160bit SHA-1.

>> (‘f’*40).hex

> 1461501637330902918203684832716283019655932542975

>> (‘z’*27).base62

> 2480707824361381849652170924082266893544595652607

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(n = 27) ⇒ UID

Returns a new instance of UID.



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# File 'lib/userify/uid.rb', line 19

def initialize(n=27)
  max = ("Z"*n).base62
  @value = SecureRandom.random_number(max)
end

Class Method Details

.generate(n = 6) ⇒ Object 



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# File 'lib/userify/uid.rb', line 36

def self.generate(n=6)
  [*0..9,*?A..?Z,*?a..?z].sample(n).join
end

Instance Method Details

#to_hex ⇒ Object 



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# File 'lib/userify/uid.rb', line 32

def to_hex
  @value.to_s(16)
end

#to_i ⇒ Object 



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# File 'lib/userify/uid.rb', line 28

def to_i
  @value
end

#to_s ⇒ Object 



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# File 'lib/userify/uid.rb', line 24

def to_s
  @value.base62
end