JOLT：从另一个数组复制属性，按键值匹配

Question

给出以下 input json:

{
  "colleges": [
    {
      "id": 10369272,
      "name": "UNIVERSITY OF SAN DIEGO"
    },
    {
      "id": 10331208,
      "name": "UNIVERSITY OF CALIFORNIA - BERKELEY (EXTENSION)"
    },
    {
      "id": 10331207,
      "name": "SEATTLE PACIFIC UNIVERSITY"
    }
  ],
  "degrees": [
    {
      "id": 6215911,
      "type": "Bachelor of Arts",
      "collegeId": 10331207
    },
    {
      "id": 6235281,
      "type": "Bachelor of Science",
      "collegeId": 10331208
    }
  ]
}

和所需的 output 的：

{
  "colleges": [
    {
      "name": "UNIVERSITY OF SAN DIEGO"
    },
    {
      "name": "UNIVERSITY OF CALIFORNIA - BERKELEY (EXTENSION)",
      "degreeType": "Bachelor of Science"
    },
    {
      "name": "SEATTLE PACIFIC UNIVERSITY",
      "degreeType": "Bachelor of Arts"
    }
  ]
}

JOLT 规范如何将正确的学位与正确的大学相关联？

换句话说，我需要通过学院 ID 找到正确的 degree，提取它的 type 并将其放在正确的 college.

下

努力在某个地方找到类似的例子。非常感谢任何建议。

Answer 1

您可以遍历 colleges 数组的索引以及 shift 转换

来自 &2[#(1)].@(1,id) 标识符的贡献为了合并 common

下的属性

collegeId ( @(1,id) 和 @(3,degrees[&].collegeId)) 包装所有对象集时的值

和colleges数组（@(1,&2[#(1)])）如

[
  {
    "operation": "shift",
    "spec": {
      "colleges": {
        "*": {
          "name": "&2[#1].@(1,id).&",
          "@(2,degrees[&].type)": "&2[#].@(3,degrees[&].collegeId).degreeType"
        }
      }
    }
  },
  {
    "operation": "shift",
    "spec": {
      "*": {
        "*": {
          "*": "&2"
        }
      }
    }
  }
]

JOLT：从另一个数组复制属性，按键值匹配

JOLT: copy attributes from another array, matching by key value

json

jolt