Module: RomanianValidators::Cnp

Defined in:
lib/romanianvalidators/cnp.rb

Constant Summary collapse

TEST_KEY = 
'279146358279'.each_char.map(&:to_i)

Class Method Summary collapse

Class Method Details

.valid?(cnp) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/romanianvalidators/cnp.rb', line 7

def valid?(cnp)
  return false unless well_formed?(cnp) && valid_birthdate?(cnp)
  control = (0..11).reduce(0) { |acc, elem| acc + TEST_KEY[elem] * cnp[elem].chr.to_i } % 11
  control = 1 if control == 10
  control == cnp[12].chr.to_i
end

.valid_birthdate?(cnp) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/romanianvalidators/cnp.rb', line 18

def valid_birthdate?(cnp)
  year_code = cnp[0].chr.to_i
  year =
    case year_code
    when 1..2 then '19'
    when 3..4 then '18'
    when 5..6 then '20'
    when 9    then '19' # oare se sare peste un an bisect intre 1800-2099 ?
    else return false
    end
  year = (year + cnp[1..2]).to_i
  Date.valid_civil?(year, cnp[3..4].to_i, cnp[5..6].to_i) ? true : false
rescue ArgumentError
  return false
end

.well_formed?(cnp) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/romanianvalidators/cnp.rb', line 14

def well_formed?(cnp)
  (cnp =~ /[^0-9]/).nil? && cnp.size == 13
end