javascript Joi 验证多个条件
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/26509551/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Joi validation multiple conditions
提问by user2468170
I have the following schema:
我有以下架构：
var testSchema = Joi.object().keys({
a: Joi.string(),
b: Joi.string(),
c: Joi.string().when('a', {'is': 'avalue', then: Joi.string().required()})
});
but I would like to add a condition on cfield definition so that it is required when:
但我想在c字段定义上添加一个条件，以便在以下情况下需要它：
a == 'avalue' AND b=='bvalue'
a == 'avalue' AND b=='bvalue'
How can I do that?
我怎样才能做到这一点？
回答by Gergo Erdosi
You can concatenate two whenrules:
您可以连接两个when规则：
var schema = {
a: Joi.string(),
b: Joi.string(),
c: Joi.string().when('a', { is: 'avalue', then: Joi.string().required() }).concat(Joi.string().when('b', { is: 'bvalue', then: Joi.string().required() }))
};
回答by Simian
The answer by Gergo Erdosi didn't work with Joi 14.3.0, this resulted in an ORcondition:
Gergo Erdosi 的回答不适用于 Joi 14.3.0，这导致了一个OR条件：
a === 'avalue' || b === 'bvalue'
a === 'avalue' || b === 'bvalue'
The following worked for me:
以下对我有用：
var schema = {
a: Joi.string(),
b: Joi.string(),
c: Joi.string().when(
'a', {
is: 'avalue',
then: Joi.when(
'b', {
is: 'bvalue',
then: Joi.string().required()
}
)
}
)
};
This results in a === 'avalue' && b === 'bvalue'
这导致 a === 'avalue' && b === 'bvalue'
