Class: CommonNumbers::Base

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

Direct Known Subclasses

Polish::Nip, Polish::Pesel, Regon14, Regon9

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(num) ⇒ Base

Returns a new instance of Base.



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# File 'lib/common_numbers/base.rb', line 7

def initialize(num)
  @magick_number = num.to_s.gsub('-', '')
end

Instance Attribute Details

#length ⇒ Object (readonly)

Returns the value of attribute length.



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# File 'lib/common_numbers/base.rb', line 5

def length
  @length
end

#magick_array ⇒ Object (readonly)

Returns the value of attribute magick_array.



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# File 'lib/common_numbers/base.rb', line 5

def magick_array
  @magick_array
end

#magick_number ⇒ Object (readonly)

Returns the value of attribute magick_number.



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# File 'lib/common_numbers/base.rb', line 5

def magick_number
  @magick_number
end

#mask ⇒ Object (readonly)

Returns the value of attribute mask.



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# File 'lib/common_numbers/base.rb', line 5

def mask
  @mask
end

#modulo ⇒ Object (readonly)

Returns the value of attribute modulo.



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# File 'lib/common_numbers/base.rb', line 5

def modulo
  @modulo
end

#regexp ⇒ Object (readonly)

Returns the value of attribute regexp.



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# File 'lib/common_numbers/base.rb', line 5

def regexp
  @regexp
end

Instance Method Details

#checksum ⇒ Object 



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# File 'lib/common_numbers/base.rb', line 33

def checksum
  @magick_array = magick_number.split( "").collect &:to_i
  checksum = mask.inject(0) {|sum, weight| sum + weight * magick_array.shift}
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/common_numbers/base.rb', line 11

def valid?
  validate
end

#validate ⇒ Object 



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# File 'lib/common_numbers/base.rb', line 15

def validate
  validate_regexp && validate_length && validate_sum_control
end

#validate_length ⇒ Object 



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# File 'lib/common_numbers/base.rb', line 23

def validate_length
  magick_number.size == length
end

#validate_regexp ⇒ Object 



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# File 'lib/common_numbers/base.rb', line 19

def validate_regexp
    regexp =~ magick_number
end

#validate_sum_control ⇒ Object 



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# File 'lib/common_numbers/base.rb', line 27

def validate_sum_control
  mod = checksum % modulo
  mod = 0 if mod == 10
  mod === magick_array.shift
end