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Dinero en Ruby

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July 17, 2015
Programming
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Dinero en Ruby

3 tips de como manejar dinero en tus proyectos de Ruby

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fedesoria

July 17, 2015
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Transcript

  1. > puts ‘$’ @fedesoria

  2. 1. ¿Cómo guardar dinero en la base de datos?

  3. 139.25 + 74.79

  4. => 214.04

  5. => 214.04000000000002

  6. 1/3 != 1010101

  7. Integer > production.precio => 2000 # 20.00

  8. BigDecimal

  9. 2. ¿Cómo hago redondeo?

  10. $20.005

  11. Redondeo al número entero IEEE Standard 1985

  12. $20.005 => $20.00

  13. $20.015 => $20.02

  14. BigDecimal ROUND_HALF_EVEN

  15. 3. ¿Cómo manejo múltiples monedas?

  16. gem install money

  17. Money.new(1000, "USD")

  18. Money.new(1000, “USD”).to_s => “$10.00”

  19. Money.new(1000, “USD”). exchange_to( “MXN”) => “$200.00”

  20. > puts ‘Gracias’ @fedesoria