Example: Activating/Deactivating a Configuration

xquery version "1.0-ml";
declare namespace env-ui = "http://marklogic.com/environment-ui";
(: Set this var to false to deactivate, true to activate :)
let $state := fn:false()
let $env-ui-node := 
  fn:doc('/cluster-ui-settings.xml')/env-ui:environment-ui
return 
  if (exists($env-ui-node)) then
    xdmp:node-replace(
      $env-ui-node/env-ui:ui-active, 
      <env-ui:ui-active>{$state}</env-ui:ui-active>)
  else ()
(: Reload Query Console to see your changes :)