JSON 架构 : How to check that an array contains at least one object with a property with a given value?

Question

如何在以下 json 中检查数组中至少有一个元素 names有房产nickName值 Ginny ?

{
  "names": [
    {
      "firstName": "Hermione",
      "lastName": "Granger"
    }, {
      "firstName": "Harry",
      "lastName": "Potter"
    }, {
      "firstName": "Ron",
      "lastName": "Weasley"
    }, {
      "firstName": "Ginevra",
      "lastName": "Weasley",
      "nickName": "Ginny"
    }
  ]
}

目前我使用的是draft-06 版本(FAQ here)。

这是我的 NOT WORKING 架构:

{
  "$schema": "http://json-schema.org/draft-06/schema#",
  "title": "Complex Array",
  "description": "Schema to validate the presence and value of an object within an array.",

  "type": "object",
  "properties": {
    "names": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "object",
        "properties": {
          "firstName": {
            "type": "string"
          },
          "lastName": {
            "type": "string"
          },
          "nickName": {
            "type": "string"
          }
        },
        "anyOf": [
          {"required": ["nickName"]}
        ]
      }
    }
  }
}

Answer 1

我设法使用 draft-06 弄清楚了.在此版本中新增关键字 contains加入。根据这个草案specification :

contains

The value of this keyword MUST be a valid JSON Schema. An array instance is valid against "contains" if at least one of its elements is valid against the given schema.

工作架构:

{
  "$schema": "http://json-schema.org/draft-06/schema#",
  "title": "Complex Array",

  "type": "object",
  "properties": {
    "names": {
      "type": "array",
      "minItems": 1,
      "contains": {
        "type": "object",
        "properties": {
          "firstName": {
            "type": "string"
          },
          "lastName": {
            "type": "string"
          },
          "nickName": {
            "type": "string",
            "pattern": "^Ginny$"
          }
        },
        "required": ["nickName"]
      },
      "items": {
        "type": "object",
        "properties": {
          "firstName": {
            "type": "string"
          },
          "lastName": {
            "type": "string"
          },
          "nickName": {
            "type": "string"
          }
        }
      }
    }
  }
}