Class: SpainDni::Dni

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(id_number) ⇒ Dni

Returns a new instance of Dni.



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# File 'lib/spain_dni.rb', line 8

def initialize(id_number)
  @id_number = id_number.to_s
end

Instance Attribute Details

#id_number ⇒ Object

Returns the value of attribute id_number.



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# File 'lib/spain_dni.rb', line 6

def id_number
  @id_number
end

Instance Method Details

#calculate_check ⇒ Object 



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# File 'lib/spain_dni.rb', line 24

def calculate_check
  nie_letters = { X: 0, Y: 1, Z: 2 }
  number = if nie?
             [nie_letters[@id_number[0].to_sym], @id_number[1..-2]].join
           else
             @id_number.chop
           end
  number.to_i % 23
end

#check_letter ⇒ Object 



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# File 'lib/spain_dni.rb', line 20

def check_letter
  @id_number[-1]
end

#dni? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/spain_dni.rb', line 12

def dni?
  !@id_number[0].match(/\d/).nil?
end

#id_type ⇒ Object 



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# File 'lib/spain_dni.rb', line 50

def id_type
  return nil unless valid?
  nie? ? 'NIE' : 'DNI'
end

#nie? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/spain_dni.rb', line 16

def nie?
  @id_number[0].match(/\d/).nil?
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/spain_dni.rb', line 46

def valid?
  check_letter == valid_letter
end

#valid_letter ⇒ Object 



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# File 'lib/spain_dni.rb', line 34

def valid_letter
  verifiers = {
    0 => 'T', 1 => 'R', 2 => 'W', 3 => 'A', 4 => 'G', 5 => 'M',
    6 => 'Y', 7 => 'F', 8 => 'P', 9 => 'D', 10 => 'X', 11 => 'B',
    12 => 'N',	13 => 'J', 14 => 'Z' ,15 => 'S', 16 => 'Q',
    17 => 'V', 18 => 'H', 19 => 'L', 20 => 'C', 21 => 'K',	22 => 'E'
  }
  verifiers.each do |key, value|
    return value if calculate_check.to_i == key
  end
end