验证非负整数和十进制值 [英] Validation for non-negative integers and decimal values

问题描述

我的字段是:税率 和 tax amount 我想在其中验证正值.

My fields are: tax rate and tax amount in which I want to validate positive values.

我写了这个验证:

:format => { :with => /\A[+]?\d+\Z/}

但它不会像4.67那样取带小数点的数字.它给我一个错误.什么类型的验证适用于整数和浮点值?例如:2、57、54.56 应该通过但-2.56、-87> 应该失败.

But it is not taking numbers with a decimal point like 4.67. And it's throwing me an error. What type of validation will work on integers and floating point values? for example: 2, 57, 54.56 should pass but -2.56, -87 should fail.

推荐答案

这不行吗?

validates :your_field, :numericality => { :greater_than_or_equal_to => 0 }

(按照规则猜测税收会更正确:)

(guess for taxes following rule will be more correct:)

validates :your_field, :numericality => { :greater_than_or_equal_to => 0, :less_than_or_equal_to => 100 }

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