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mule - Dataweave（嵌套）映射条件映射

问题描述

案子

我有一个 json 对象（从 Excell 文件中导入，之后也需要像一个一样格式化）。所以我根本不能弄乱结构。

输入由带有表格的 json 格式对象组成，每个表格都是一个对象数组。

当sheetnumber等于'append'对象中的kwadrantcode时，我想将另一个对象（var'append'）添加到数组（作为最后一项）

输入 1

有效载荷

    {
  "(sheet)1": [
    {
      "kwadrantId": 1.0,
      "Team": "blauw1",
      "timestamp": "2019-09-26T16:37:54",
      "controlecode": 12431
    }
  ],
  "(sheet)2": [
    {
      "kwadrantId": 2.0,
      "Team": "rood1",
      "timestamp": "2019-09-26T16:37:54",
      "controlecode": 81243
    },
    {
      "kwadrantId": 2.0,
      "Team": "blauw2",
      "timestamp": "2019-09-26T18:00:54",
      "controlecode": 67676
    }
  ]
}

到目前为止的代码

%dw 2.0
output application/json

var append =   {"kwadrant": "2",
  "controlecode": "22222",
  "kleur": "blauw",
  "subteam": "1",
  "form_id": "83177",
  "submit": "Claim"
}
--- 
payload pluck($) map (sheet, sheetnumber)-> (sheet map (claim, claimcounter) -> claim) ++ [append]

此代码成功地将对象附加到正确位置的数组中。这里的问题是最后一部分（地图目标）似乎不允许有条件。所以它总是会在每个列表的末尾插入它，而不仅仅是我希望它结束​​的那个。

[
  [
    {
      "kwadrantId": 1.0,
      "Team": "blauw1",
      "timestamp": "2019-09-26T16:37:54",
      "controlecode": "12431"
    },
    {
      "kwadrant": "2",
      "controlecode": "22222",
      "kleur": "blauw",
      "subteam": "1",
      "form_id": "83177",
      "submit": "Claim"
    }
  ],
  [
    {
      "kwadrantId": 2.0,
      "Team": "rood1",
      "timestamp": "2019-09-26T16:37:54",
      "controlecode": "12431"
    },
    {
      "kwadrantId": 2.0,
      "Team": "blauw2",
      "timestamp": "2019-09-26T18:00:54",
      "controlecode": 67676.0
    },
    {
      "kwadrant": "2",
      "controlecode": "22222",
      "kleur": "blauw",
      "subteam": "1",
      "form_id": "83177",
      "submit": "Claim"
    }
  ]
]

我尝试过的几件事

honestly, i think i've tried everything the past two hours, but here are a few i can think of out of the top of my head.

++ [append] if (true) 

(if true )++ [append]

payload pluck($) map (sheet, sheetnumber)-> (sheet map (claim, claimcounter) -> claim)((if true) ++ [append])

and most variations i can think of with brackets

稍后我会担心将“附加”变量格式化为正确的结构，只是将它放在正确的位置是我似乎无法正常工作的问题。

标签： muledataweave

解决方案

我能想到的最简单的方法是使用mapObject函数

%dw 2.0
output application/json

var append =   
    {
    "kwadrant": "2",
    "controlecode": "22222",
    "kleur": "blauw",
    "subteam": "1",
    "form_id": "83177",
    "submit": "Claim"
    }

fun extractNumber(pageName: Key) = 
     (pageName as String match  /\(sheet\)([0-9]+)/)[1]    
---
payload mapObject ((value, key, index) -> do {
        if(extractNumber(key) == append.kwadrant)
            {(key): value << append}
         else
            {(key): value}
})

所以基本上我会去根目录中的每一张纸，当它与我需要的一张相匹配时，我需要将它添加到使用<<

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