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JavaScript PatchBuilderPlan.prototype.insertNamedChild

MarkLogic 12 Product Documentation
op:insert-named-child

op:insert-named-child(
   $patch-builder-plan as map:map,
   $path as xs:string,
   $key as xs:string,
   $content as node()
) as map:map

Summary

This method is specific for JSON and inserts a key/value pair to an object.

Parameters
$patch-builder-plan The Patch Builder Plan. You can either use the XQuery => chaining operator or specify the variable that captures the return value from the previous operation.
$path The path which returns an JSON Object.
$key The key to insert.
$content The new content.

Example

xquery version "1.0-ml";
import module namespace op="http://marklogic.com/optic"
     at "/MarkLogic/optic.xqy";
declare option xdmp:update "true";

let $doc-descriptors := (
    map:entry("uri", '/optic/update/write4.json')
      =>map:with("doc", xdmp:unquote("{key:{ key2: 2}}")),
    map:entry("uri", '/optic/update/write5.xml')
      =>map:with("doc",xdmp:unquote("{key:{ key2: 2}}"))
      =>map:with("collections", ("write"))
  )
return op:from-doc-descriptors($doc-descriptors)
=>op:patch(op:col("doc"),op:patch-builder("/")
           =>op:insert-named-child("key","key3",3)
          )
=>op:write(op:doc-cols())
=>op:result()

(: This returns doc as

'/optic/update/write4.xml' 

{
  "key": {
    "key2": 2,
    "key3": 3
  }
}

'/optic/update/write5.xml'

{
  "key": {
    "key2": 2,
    "key3": 3
  }
}

:)

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