表示对于给定的属性值，应该使用json模式存在具有相同名称的属性? [英] Express that, for a given property value, a property with the same name should exist using json schema?

问题描述

我正在尝试验证json文件，该文件具有一个元素，该元素的属性包含应在json另一部分中存在的值.我正在使用jsonschema Draft 07.

I'm trying to validate json files which have an element that has a property which contains a value that should exist in another part of the json. I'm using jsonschema Draft 07.

这是一个简单的小示例，显示了我要在数据中验证的场景.

This is a simple little example that shows the scenario I'm trying to validate in my data.

{
  "objects": {
    "object1": {
      "colorKey": "orange"
    }
  },
  "colors": {
      "orange": {
          "red": "FF",
          "green": "AF",
          "blue": "00"
      }
  }
}

如何验证colorKey的值"(在本例中为"orange")是否作为"colors"对象的属性存在?数据不是存储在数组中，而是存储在定义的属性中.

How can I validate that the 'value' of colorKey (in this case 'orange') actually exists as a property of the 'colors' object? The data isn't stored in arrays, just defined properties.

推荐答案

用于官方JSON架构... 您无法检查数据中的键是否与数据值相同. 您无法从JSON实例提取数据值以在JSON模式中使用.

For official JSON Schema... You cannot check that a key in the data is the same as a value of the data. You cannot extract the value of data from your JSON instance to use in your JSON Schema.

话说回来，最流行的验证器ajv实现了一些非官方的扩展.其中之一是$ data.

That being said, ajv, the most popular validator, implements some unofficial extensions. One of which is $data.

摘自以下示例: https://github.com/epoberezkin/ajv#data-reference

var ajv = new Ajv({$data: true});

var schema = {
  "properties": {
    "smaller": {
      "type": "number",
      "maximum": { "$data": "1/larger" }
    },
    "larger": { "type": "number" }
  }
};

var validData = {
  smaller: 5,
  larger: 7
};

ajv.validate(schema, validData); // true

这不适用于使用您的架构的其他任何人.

This would not work for anyone else using your schemas.

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