Progress OpenEdge XML 可选子节点

Question

我需要有关如何使用 write-xml 编写以下 XML 的建议？ 这可能吗？谢谢

注意最后一个材质节点有不同的元素。在编写输出时如何使元素可选和“显示/不显示”？

def temp-table ttMaterials no-undo       serialize-name "Materials" 
  field MatsID                  as int   serialize-hidden.

def temp-table ttMaterial  no-undo       serialize-name "Material" 
  field MatsID                  as int   serialize-hidden
  field MaterialNumber          as char
  field PalletNumber            as char
  field Quantity                as char
  field UnitOfMeasure           as char
  field StorageLocation         as char
  field OperationCode           as char
  field ReasonCode              as char
  field CancellationFlag        as char
  field ItemNo                  as char.
  
def dataset dsMaterial xml-node-name "ns1:Message" for 
  ttMaterials, ttMaterial.
  data-relation Rel1 for ttMaterials, ttMaterial nested relation-fields(MatsID, MatsID).


<?xml version="1.0"?>
<ns1:Message xmlns:ns1="http://google.envelope">
  <Materials>
    <Material>
      <MaterialNumber>00111</MaterialNumber>
      <PalletNumber>1888845001</PalletNumber>
      <Quantity>91.0000000000</Quantity>
      <UnitOfMeasure>PAC</UnitOfMeasure>
      <StorageLocation>700</StorageLocation>
      <OperationCode>101</OperationCode>
      <ReasonCode/>
      <CancellationFlag>false</CancellationFlag>
      <ItemNo>10</ItemNo>
    </Material>
    <Material>
      <MaterialNumber>00112</MaterialNumber>
      <PalletNumber>45828760</PalletNumber>
      <Quantity>58.3100000000</Quantity>
      <UnitOfMeasure>PAC</UnitOfMeasure>
      <StorageLocation>700</StorageLocation>
      <OperationCode>543</OperationCode>
      <ReasonCode/>
      <CancellationFlag>false</CancellationFlag>
      <ItemNo>10</ItemNo>
    </Material>
    <Material>
       <FromMaterialNumber>000000000000063299</FromMaterialNumber>
       <ToMaterialNumber>000000000000063299</ToMaterialNumber>
       <FromPalletNumber>81592826</FromPalletNumber>
       <ToPalletNumber>81592826</ToPalletNumber>
       <Quantity>8</Quantity>
       <UnitOfMeasure>PAC</UnitOfMeasure>
       <FromStorageLocation>300</FromStorageLocation>
       <ToStorageLocation>300</ToStorageLocation>
       <OperationCode>551</OperationCode>
       <ReasonCode>12</ReasonCode>
       <CancellationFlag>false</CancellationFlag>
    </Material>
  </Materials>
</ns1:Message>

Answer 1

您可以使用 write-xml 方法并确保此对于您需要隐藏的数据来说是正确的。

dataset dsMaterial:write-xml(
  'longchar',
  lcxml,
  true, // formatted
  ?,    // encoding
  ?,    // schema-location
  ?,    // write-xml-schema
  ?,    // min-xml-schema
  ?,    // write-before-image
  true  // omit-initial-values
).
message string( lcxml ).