Joi 将文本/有效值添加到自定义验证功能的错误消息中

Question

如果字符串在数组中，我尝试检查 joi 模式（使用自定义验证函数）。

问题：与

.valid()

 中构建的方法相比，错误消息不会打印有效值：

const Joi = require("joi");

const allowed = ["admin", "user", "noob"];

const method = (value, helpers) => {
  
    if (!allowed.includes(value)) {        
      return helpers.error("any.only", {allowed});
    }
  
    return value;

};


const createProfileSchema = Joi.object().keys({
    username: Joi.string().required().custom(method),
    text: Joi.string().valid("a", "b")
});
    

const { error, value } = createProfileSchema.validate({
    username: "asfd" ,
    text: "c"
}, {
    abortEarly: false
});
          

console.log(error || value);

[Error [ValidationError]: "username" must be one of . "text" must be one of [a, b]] {
  _original: { username: 'asfd', text: 'c' },
  details: [
    {
      message: '"username" must be one of ',
      path: [Array],
      type: 'any.only',
      context: [Object]
    },
    {
      message: '"text" must be one of [a, b]',
      path: [Array],
      type: 'any.only',
      context: [Object]
    }
  ]
}

我如何像

.text

错误消息中那样添加

[admin, user, noob]

部分，完整的错误消息是

"username" must be one of [admin, user, noob]

而不仅仅是

"username" must be one of

Answer 1

我查看了源代码：

https://github.com/hapijs/joi/blob/5b96852fe07a742a8733f2bff1303d50853ca65c/lib/types/any.js#L169C46-L169C52

Joi 需要一个名为“valids”的属性。

      return helpers.error("any.only", {
        valids: allowed
      });

解决了我的问题。

[Error [ValidationError]: "username" must be one of [admin, user, noob]. "text" must be one of [a, b]] {
  _original: { username: 'asfd', text: 'c' },
  details: [
    {
      message: '"username" must be one of [admin, user, noob]',
      path: [Array],
      type: 'any.only',
      context: [Object]
    },
    {
      message: '"text" must be one of [a, b]',
      path: [Array],
      type: 'any.only',
      context: [Object]
    }
  ]
}