module CiUY

CiUY main validation. The gem receives a string and doesn't care what you use to separate the digits, it gets the numbers from the string and checks the verification digit. So all of these formats are valid: `1.111.111-1`, `1_111_111_1`, `1.111.111/1`. The validation algorithm is: Multiply each digit by 2, 9, 8, 7, 6, 3, 4 one to one Then do 10 - (sum mod 10), that's the verification digit

rubocop:disable Naming/UncommunicativeMethodParamName

Public Class Methods

get_random_ci()

Alias for: random

get_validation_digit(input)

Alias for: validation_digit

random() click to toggle source

# File lib/ci_uy.rb, line 32
def self.random
  ci = rand(1_000_000..9_999_999).to_s
  ci + get_validation_digit(ci)
end

Also aliased as: get_random_ci

transform(ci) click to toggle source

# File lib/ci_uy.rb, line 37
def self.transform(ci)
  ci = '0' + ci if ci.size == 6
  ci = ci.to_s if ci.is_a? Integer
  ci.chars.reject { |i| i.match(/\D/) }.join
end

validate(input)

Alias for: validate_ci

validate_ci(input) click to toggle source

# File lib/ci_uy.rb, line 22
def self.validate_ci(input)
  # Using to_a to keep 1.9.3 compatibility
  ci = transform(input).chars.to_a
  return false if ci.length < 6

  digit = ci[-1]
  ci = ci[0..-2]
  get_validation_digit(ci.join) == digit
end

Also aliased as: validate

validation_digit(input) click to toggle source

# File lib/ci_uy.rb, line 13
def self.validation_digit(input)
  ci = transform(input)
  a = []
  (0..6).each do |i|
    a << ('2987634'[i].to_i * ci[i].to_i)
  end
  (10 - (a.inject(:+) % 10)).to_s[-1]
end

Also aliased as: get_validation_digit