class SedolValidator
Public Instance Methods
validate_each(record, attribute, value)
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# File lib/active_validation/validators/sedol_validator.rb, line 7 def validate_each(record, attribute, value) return if valid?(value.to_s) record.errors[attribute] << (options[:message] || I18n.t('active_validation.errors.messages.sedol')) end
Private Instance Methods
valid?(value)
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# File lib/active_validation/validators/sedol_validator.rb, line 33 def valid?(value) valid_length?(value) && valid_format?(value) && valid_checksum?(value) end
valid_checksum?(value)
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# File lib/active_validation/validators/sedol_validator.rb, line 16 def valid_checksum?(value) digits = value.chars.map { |dgt| /[A-Z]/.match?(dgt) ? (dgt.ord - 55) : dgt.to_i } total = 0 digits.each_with_index { |dgt, idx| total += (WEIGHTS[idx] * dgt) } (10 - total % 10) % 10 end
valid_format?(value)
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# File lib/active_validation/validators/sedol_validator.rb, line 25 def valid_format?(value) value =~ /^([A-Z0-9]{6})(\d{1})$/ end
valid_length?(value)
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# File lib/active_validation/validators/sedol_validator.rb, line 29 def valid_length?(value) value.present? end