如何让Yup执行多个自定义验证?

时间:2020-09-06 21:40:47

标签: reactjs formik yup

我正在研究ReactJS项目。我正在学习将Yup用于FormIk的验证。以下代码可以正常工作:

const ValidationSchema = Yup.object().shape({
  paymentCardName: Yup.string().required(s.validation.paymentCardName.required),
  paymentCardNumber: Yup.string()
  /*
    .test(
      "test-num",
      "Requires 16 digits",
      (value) => !isEmpty(value) && value.replace(/\s/g, "").length === 16
    )
  */
    .test(
      "test-ctype",
      "We do not accept this card type",
      (value) => getCardType(value).length > 0
    )
    .required(),

但是,当我取消对test-num的评论时,开发人员工具便抱怨未实现的承诺:

enter image description here

如何根据我检测到的验证失败让Yup给我一个不同的错误字符串?

1 个答案:

答案 0 :(得分:1)

您可以使用addMethod方法来创建两个这样的自定义验证方法。

Yup.addMethod(Yup.string, "creditCardType", function (errorMessage) {
  return this.test(`test-card-type`, errorMessage, function (value) {
    const { path, createError } = this;

    return (
      getCardType(value).length > 0 ||
      createError({ path, message: errorMessage })
    );
  });
});

Yup.addMethod(Yup.string, "creditCardLength", function (errorMessage) {
  return this.test(`test-card-length`, errorMessage, function (value) {
    const { path, createError } = this;

    return (
      (value && value.length === 16) ||
      createError({ path, message: errorMessage })
    );
  });
});

const validationSchema = Yup.object().shape({
  creditCard: Yup.string()
    .creditCardType("We do not accept this card type")
    .creditCardLength('Too short')
    .required("Required"),
});