Question

给出以下结构：

[
  {
    "authorizedKey": "0",
    "description": "This key is for system testing.",
    "keyExpiration": "2035-02-02T18:28:59Z",
    "keyId": "aaa12345-1234-1234-1234-1234567890ab"
  },
  {
    "authorizedKey": "1",
    "description": "This key is for system testing.",
    "keyExpiration": "2035-02-02T18:28:59Z",
    "keyId": "bbb12345-1234-1234-1234-1234567890ab"
  },
  {
    "authorizedKey": "1",
    "description": "This key is for system testing.",
    "keyExpiration": "2035-02-02T18:28:59Z",
    "keyId": "ccc12345-1234-1234-1234-1234567890ab"
  }
]

仅使用jq，有没有办法将其转换为以下结构？还是需要将其包装在某种外部逻辑中？

[
  {
    "authorizedKey": "zero",
    "description": "This key is for system testing.",
    "keyExpiration": "2035-02-02T18:28:59Z",
    "keyId": "aaa12345-1234-1234-1234-1234567890ab"
  },
  {
    "authorizedKey": "one",
    "description": "This key is for system testing.",
    "keyExpiration": "2035-02-02T18:28:59Z",
    "keyId": "bbb12345-1234-1234-1234-1234567890ab"
  },
  {
    "authorizedKey": "one",
    "description": "This key is for system testing.",
    "keyExpiration": "2035-02-02T18:28:59Z",
    "keyId": "ccc12345-1234-1234-1234-1234567890ab"
  }
]

Answer 1

这有效：

map(. + {authorizedKey: {"0": "zero", "1": "one"}[.authorizedKey]})

如果除了0和1之外还有其他值，可以将它们添加到地图中。如果您还有很多想要提高可读性，可以这样做：

{"0": "zero", "1": "one"} as $mapping |
  map(. + {authorizedKey: $mapping[.authorizedKey]})

避免在代码中间编写值映射。

之所以可行，是因为+运算符是在jq中的对象上定义的，并且如果LHS中已经存在RHS中的键，则其值将被RHS中的相应值替换。

使用jq转换数组中的authorizedKey字段

1 个答案: