使用 dataweave 2.0 在 mule 4 中使用 order by 进行转换

Question

我必须按 distanceInKm 升序排列我的有效负载数组。这是有效负载：

 [{
   "id": 1111,
   "accountNumber": 17694838,   
   "pickup": {
    "time": 1580637133000,
    "distanceInKm": 4.3
   }
 },{
  "id": 2222,
  "accountNumber": 17694838,
  "pickup": {
    "time": 1580637133000,
    "distanceInKm": 2.0
  }
},{
  "id": 3333,
  "accountNumber": 17694838,    
  "pickup": {
    "time": 1580637133000,
    "distanceInKm": 4.3
  }
  },{
  "id": 4444,
  "accountNumber": 17694838,
  "pickup": {
    "time": 1580637133000,
    "distanceInKm": 2.0
   }}]

转型：

  %dw 2.0
  output application/json 
   ---
 payload map (payload01, index) -> {
id: payload01.id,
Account: payload01.accountNumber,
pickup: {
    time: payload01.pickup.time,
    distance: payload01.pickup.distanceInKm
  }
} orderBy (payload01.pickup.distanceInKm)

我正在进行所需的转换，之后我正在应用 orderBy，但它不起作用。我可以进行哪些更改以使其按 distanceInKm 升序排列？

Answer 1

您可以将 "map" 包含在一个组中，以确保您订购的已经是结果数组。见下文。

(payload map (payload01, index) -> {
    id: payload01.id,
    Account: payload01.accountNumber,
    pickup: {
        time: payload01.pickup.time,
        distance: payload01.pickup.distanceInKm
    }
}) orderBy $.pickup.distance

这将生成一个按 distanceInKm 升序排列的数组。如果你想要降序，那么你可以使用 -$.pickup.distance 作为你的标准。

使用 dataweave 2.0 在 mule 4 中使用 order by 进行转换

transformation with order by in mule 4 with dataweave 2.0

mule

mulesoft

mule4