Joi 驗證器替代模式錯誤消息

Question

我試圖使用Joi.alternatives.try()創建一個 Joi 模式。 這是我嘗試過的架構。

Joi.alternatives().try(Joi.object({
    type: Joi.number().required().label('Error1!!')
}), Joi.object({
    reason: Joi.string().required().label('Error2!!')
})).label('Error!!')

這是我用過的object。

{ reason: 2 }

我期待錯誤為Error2!! 或包含此字符串Error2!! . 但我得到錯誤

Validation Error: "Error!!" does not match any of the allowed types

此錯誤來自父節點。

如何使錯誤特定於 object？ 即，來自備用 object 節點而不是父 object 節點的錯誤。

您可以使用此平台在線驗證架構。

更新：這是我使用的示例模式。

employee_retired = Joi.object({
    type: Joi.number().required().valid(2, 3, 7),
    reason: Joi.string().required()
        .min(1)
        .max(100),
    firstname: Joi.string()
        .required(),
    lastname: Joi.string()
        .required()
        .min(1)
        .max(255),
    personaldetails: Joi.alternatives().conditional('type', {
        is: 2, then: Joi.array().items(Joi.object({
            address: Joi.string().required()
                .min(1)
                .max(100),
            salary: Joi.string().required()
                .min(0)
                .max(500),
            contactnumbers: Joi.array().items(Joi.object({
                mobile: Joi.string().required()
                    .min(0)
                    .max(15),
                home: Joi.string()
                    .required()
                    .min(1)
                    .max(15),
            })).max(50).required(),
        }).required()).max(50).required(),
        otherwise: Joi.forbidden(),
    }),
    monthlysavings: Joi.alternatives().conditional('type', {
            is: 3,
            then: Joi.number()
                .required()
                .min(0)
                .max(50000),
            otherwise: Joi.forbidden(),
        }),
    isapproved: Joi.boolean().required(),
});

empolyee_working = Joi.object({
    type: Joi.number().required().valid(2, 3, 7),
    reason: Joi.string().required()
        .min(1)
        .max(100),
    firstname: Joi.string()
        .required(),
    lastname: Joi.string()
        .required()
        .min(1)
        .max(255),
    contactnumbers: Joi.array().items(Joi.object({
        mobile: Joi.string().required()
            .min(0)
            .max(15),
        home: Joi.string()
            .required()
            .min(1)
            .max(15),
    })).max(50).required(),
    monthlysavings: Joi.alternatives().conditional('type', {
        is: 3,
        then: Joi.number().required()
            .min(1)
            .max(50000),
        otherwise: Joi.forbidden(),
    }),
    isapproved: Joi.boolean().required(),
})

const employee = Joi.alternatives().try(employee_retired, empolyee_working);

Answer 1

您可以使用object.or進行此行為：

Joi.object({
    type: Joi.number().label('Error1!!'),
    reason: Joi.string().label('Error2!!')
}).or('type', 'reason').label('Error!!')

測試：

{}
// Validation Error: "Error!!" must contain at least one of [Error1!!, Error2!!]
{ reason: 2 }
// Validation Error: "Error2!!" must be a string
{ type: "a" } // note that due to default `convert` behavior, `{ type: "2" }` would pass
// Validation Error: "Error1!!" must be a number
{ a: "b" }
// Validation Error: "a" is not allowed. "Error!!" must contain at least one of [Error1!!, Error2!!]

更新（評論后）

確實它有點冗長，但遵循相同的邏輯：

• 退休員工和在職員工共享相同的結構
• 只有personaldetails詳細信息和contactnumbers有所不同

因此，以下內容應該為您提供精確的驗證錯誤消息（盡管我還沒有測試所有情況）。 我只是“合並”了兩個員工聲明，兩個不同的案例personaldetails和contactnumbers不再聲明為required ，而是在最終的or中指定。

Joi.object({
    type: Joi.number().required().valid(2, 3, 7),
    reason: Joi.string().required()
        .min(1)
        .max(100),
    firstname: Joi.string()
        .required(),
    lastname: Joi.string()
        .required()
        .min(1)
        .max(255),
    personaldetails: Joi.alternatives().conditional('type', {
        is: 2, then: Joi.array().items(Joi.object({
            address: Joi.string().required()
                .min(1)
                .max(100),
            salary: Joi.string().required()
                .min(0)
                .max(500),
            contactnumbers: Joi.array().items(Joi.object({
                mobile: Joi.string().required()
                    .min(0)
                    .max(15),
                home: Joi.string()
                    .required()
                    .min(1)
                    .max(15),
            })).max(50).required(),
        // N.B.: no more .required() on the next line, .or() will handle it conditionally
        }).required()).max(50),
        otherwise: Joi.forbidden(),
    }),
    contactnumbers: Joi.array().items(Joi.object({
        mobile: Joi.string().required()
            .min(0)
            .max(15),
        home: Joi.string()
            .required()
            .min(1)
            .max(15),
    // N.B.: no more .required() on the next line, .or() will handle it conditionally
    })).max(50),
    monthlysavings: Joi.alternatives().conditional('type', {
            is: 3,
            then: Joi.number()
                .required()
                .min(0)
                .max(50000),
            otherwise: Joi.forbidden(),
        }),
    isapproved: Joi.boolean().required(),
}).or('personaldetails', 'contactnumbers').label('OR failure')