英文:
Conditional JSON schema validation based on value of referenced object
问题
假设我有一个如下所示的JSON对象：
{
"sources": [
{
"id": "foo",
"type": "a"
},
{
"id": "bar",
"type": "b"
}
],
"data": [
{
"source-id": "foo",
"a-attribute": 10
},
{
"source-id": "bar",
"b-attribute": 20
}
]
}
在这里，data对象中的source-id必须等于source对象中的一个id。
1）我如何在JSON Schema中表示这种关系？
2）如何根据所引用的sources对象的type属性的值对data对象进行条件子模式应用？
对于问题2，我想进一步解释一下。例如，当所引用的source的type为a时，我必须指定a-attribute并且不能指定b-attribute。
当所引用的source的type为b时，我应该被强制指定b-attribute而不是a-attribute。
这是否可以通过JSON Schema实现，还是我需要编写自定义验证代码？
英文:
Imagine I have a JSON object like the following:
{
"sources": [
{
"id": "foo",
"type": "a"
},
{
"id": "bar",
"type": "b"
}
],
"data": [
{
"source-id": "foo",
"a-attribute": 10
},
{
"source-id": "bar",
"b-attribute": 20
}
]
}
Here, the source-id in the data objects must be equal to one of the ids in the source objects.
- How can I express this relationship in JSON Schema?
- How can I do conditional subschema application for the
dataobjects based on the value of thetypeproperty of the referredsourcesobject?
Expanding a bit on 2., I would like for example that when the type of the referred source is a, then I have to specify a-attribute and cannot specify b-attribute.
And when the type of the referred source is b, then I should be forced to specify b-attribute and not a-attribute.
Can this be achieved with JSON Schema, or do I need to write custom validation code?
答案1
得分: 1
我在 JSON Schema Slack 上被告知，JSON Schema 无法表达关系完整性约束。
所以，我想要做的事情无法通过模式来实现，而需要进行单独的验证。
英文:
I was told in the JSON Schema Slack that JSON Schema today cannot express relational integrity constraints.
So what I would like to do is not achievable with a schema but requires separate validation.
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