Question

我正在尝试使用“链式”定义构建一个json架构。

对于给定的架构：

{
  "$schema": "http://json-schema.org/schema#",
  "id": "http://toto/filter-schema#",
  "title": "filter schema definition",
  "type": "object",
  "description": "filter data",
  "definitions": {
    "timeFilters": {
      "type": "object",
      "oneOf": [
        {
          "properties": {
            "since": {
              "type": "string",
              "format": "date-time",
              "description": "sends only items that have been modified AFTER this"
            }
          },
          "additionalProperties": false,
          "required": [
            "since"
          ]
        },
        {
          "properties": {
            "from": {
              "type": "string",
              "format": "date-time",
              "description": "return only data that have a validity date AFTER this"
            },
            "to": {
              "type": "string",
              "format": "date-time",
              "description": "return only data that have a validity date BEFORE this"
            }
          },
          "additionalProperties": false,
          "required": [
            "from",
            "to"
          ]
        }
      ]
    },
    "objectFilters": {
      "type": "object",
      "properties": {
        "objectFilters": {
          "type": "array",
          "description": "the array of object filter",
          "minItems": 1,
          "uniqueItems": true,
          "items": [
            {
              "type": "object",
              "additionalProperties": false,
              "properties": {
                "targetClass": {
                  "type": "string",
                  "description": "the target class"
                },
                "targetAttribute": {
                  "type": "string",
                  "description": "the target attribute"
                },
                "test": {
                  "type": "string",
                  "description": "the test on the attribute value"
                }
              }
            }
          ]
        }
      },
      "additionalProperties": false
    }
  },
  "anyOf": [
    {
      "additionalProperties": false
    },
    {
      "$ref": "#/definitions/timeFilters",
      "additionalProperties": false
    },
    {
      "$ref": "#/definitions/objectFilters",
      "additionalProperties": false
    }
  ]
}

此架构正在验证

{
  "since": "2016-02-17T01:02:03.1Z"
}

和

{
  "from": "2016-02-17T01:02:03.1Z",
  "to": "2016-02-17T01:02:03.1Z",
}

和

{
  "objectFilters": [
    {
      "targetClass": "test",
      "targetAttribute": "test",
      "test": "test"
    }
  ]
}

甚至

{}

但不是

{
  "since": "2016-02-17T01:02:03.1Z",
  "objectFilters": [
    {
      "targetClass": "test",
      "targetAttribute": "test",
      "test": "test"
    }
  ]
}

如何让它验证最后一个json？

我试图在“anyOf”中添加一个新定义，如下所示：

    {
      "$ref": "#/definitions/timeFilters",
      "$ref": "#/definitions/objectFilters",
      "additionalProperties": false
    }

但它不起作用。

我使用草案v4。

编辑：也尝试了

{
  "$ref": "#/definitions/timeFilters",
  "additionalProperties": {
    "$ref": "#/definitions/objectFilters",
    "additionalProperties": false
  }
}

无法正常工作

Answer 1

组合模式时additionalProperties的行为会让人感到困惑。我建议采用不同的方法。可以更容易地预先声明所有属性，然后单独声明所需的属性约束。

在这种情况下，dependencies关键字效果很好。

http://json-schema.org/latest/json-schema-validation.html#anchor70

{
  "$schema": "http://json-schema.org/schema#",
  "id": "http://toto/filter-schema#",
  "title": "filter schema definition",
  "description": "filter data",
  "type": "object",
  "properties": {
    "since": {
      "type": "string",
      "format": "date-time",
      "description": "sends only items that have been modified AFTER this"
    },
    "from": {
      "type": "string",
      "format": "date-time",
      "description": "return only data that have a validity date AFTER this"
    },
    "to": {
      "type": "string",
      "format": "date-time",
      "description": "return only data that have a validity date BEFORE this"
    },
    "objectFilters": {
      "type": "array",
      "description": "the array of object filter",
      "minItems": 1,
      "uniqueItems": true,
      "items": [
        {
          "type": "object",
          "additionalProperties": false,
          "properties": {
            "targetClass": {
              "type": "string",
              "description": "the target class"
            },
            "targetAttribute": {
              "type": "string",
              "description": "the target attribute"
            },
            "test": {
              "type": "string",
              "description": "the test on the attribute value"
            }
          }
        }
      ]
    }
  },
  "additionalProperties": false,
  "dependencies": {
    "since": {
      "not": { "required": ["from"] }
    },
    "from": ["to"],
    "to": ["from"]
  }
}

在json架构中，如何链定义？

1 个答案: