JSON模式if-else条件复杂场景 [英] JSON Schema if-else condition complex scenario

问题描述

    {
        "policyHolder": {
            "fullName": "A"
        },
        "traveller": [
            {
                "fullName": "B",
                "relationship": "Spouse"
            },
            {
                "fullName": "A",
                "relationship": "My Self"
            }
        ]
    }

在上面的json中，我要验证

In above json, I want to validate that

• if "relationship" = "My Self"，然后fullName必须与policyHolder
中的fullName相匹配
• traveller数组中必须存在字段relationship，否则json无效

• if "relationship" = "My Self" then fullName must match the fullName in policyHolder
• A field relationship must exist in traveller array, else json is invalid

我试图用if-else，allOf等创建一个json模式，但是没有任何方法可以进行这些验证，但无法进行. 请帮忙！

I have tried to create a json schema with if-else, allOf, etc. but nothing works which can do these validations but not able to. Please help!!

模式:

{
    "type": "object",
    "required": [
        "policyHolder",
        "traveller",
    ],
    "properties": {
        "policyHolder": {
            "$id": "#/properties/policyHolder",
            "type": "object",
            "required": [
                "fullName"
            ],
            "properties": {
                "fullName": {
                    "$id": "#/properties/policyHolder/properties/fullName",
                    "type": "string",
                }
            }
        },
        "traveller": {
            "$id": "#/properties/traveller",
            "type": "array",
            "minItems": 1,
            "items": {
                "$id": "#/properties/traveller/items",
                "type": "object",
                "properties": {
                    "fullName": {
                        "$ref": "#/properties/policyHolder/properties/fullName"
                    },
                    "relationship": {
                        "$id": "#/properties/traveller/items/properties/relationship",
                        "type": "string",
                    }
                },
                "required": [
                    "fullName",
                    "relationship"
                ],
                }
            }
        }
    }```

推荐答案

当前无法使用JSON模式完成.所有JSON Schema关键字一次只能操作一个值.有建议添加一个$data关键字，以使您能够进行这种验证，但是我认为它不太可能被采用. $data与$ref一样，除了它引用正在验证的JSON而不是引用架构.

This can't currently be done with JSON Schema. All JSON Schema keywords can only operate on one value at a time. There's a proposal for adding a $data keyword that would enable doing this kind of validation, but I don't think it's likely to be adopted. $data would work like $ref except it references the JSON being validated rather than referencing the schema.

这是使用$data解决问题的方式.

Here's what how you would solve your problem with $data.

{
  "type": "object",
  "properties": {
    "policyHolder": {
      "type": "object",
      "properties": {
        "fullName": { "type": "string" }
      }
    },
    "traveler": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "fullName": { "type": "string" },
          "relationship": { "type": "string" }
        },
        "if": {
          "properties": {
            "relationship": { "const": "My Self" }
          }
        },
        "then": {
          "properties": {
            "fullName": { "const": { "$data": "#/policyHolder/fullName" } }
          }
        }
      }
    }
  }
}

如果没有$data，则必须在代码中进行此验证或更改数据结构，以使其不必要.

Without $data, you will have to do this validation in code or change your data structure so that it isn't necessary.

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