Class: Viitenumero::Viite

Inherits:
Object
  • Object
show all
Includes:
ActiveModel::Validations
Defined in:
lib/viitenumero/viite.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(s) ⇒ Viite

Returns a new instance of Viite.



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# File 'lib/viitenumero/viite.rb', line 9

def initialize(s)
  @number = format(s)
end

Instance Attribute Details

#number ⇒ Object (readonly)

Returns the value of attribute number.



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# File 'lib/viitenumero/viite.rb', line 7

def number
  @number
end

Class Method Details

.generate(base) ⇒ Object

Raises:



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# File 'lib/viitenumero/viite.rb', line 25

def self.generate(base)
  base = (base || '').to_s.gsub(/\s+/, '')
  raise ArgumentError.new('must be a number') if base.match(/\A\d+\z/).nil?
  raise ArgumentError.new('must be between 3-19 chars long') if base.length < 3 || base.length > 19

  Viite.new(base + checksum(base))
end

.random(opts = {}) ⇒ Object

Raises:



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# File 'lib/viitenumero/viite.rb', line 33

def self.random(opts={})
  opts.symbolize_keys!
  length = opts.fetch(:length, 4)
  raise ArgumentError if length < 4 || length > 20
  base = ''
  base_length = length - 1
  base = rand(10**base_length).to_s while base.length != base_length
  generate(base.to_s)
end

.valid?(s) ⇒ Boolean

Returns:



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# File 'lib/viitenumero/viite.rb', line 43

def self.valid?(s)
  Viite.new(s).valid?
end

Instance Method Details

#machine_format ⇒ Object 



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# File 'lib/viitenumero/viite.rb', line 17

def machine_format
  number
end

#paper_format ⇒ Object 



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# File 'lib/viitenumero/viite.rb', line 13

def paper_format
  number.gsub(/.{5}(?=.)/, '\0 ')
end

#to_s ⇒ Object 



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# File 'lib/viitenumero/viite.rb', line 47

def to_s
  machine_format
end

#valid? ⇒ Boolean

Returns:



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# File 'lib/viitenumero/viite.rb', line 21

def valid?
  valid_format? and valid_length? and valid_checksum?
end