Paul, You're constructing XML and trying to insert an object-node child. That's not allowed in MarkLogic 8. Previously xdmp:to-json returned a string, as there was no object-node type. In MarkLogic 8 we introduced new node types to represent JSON: object-node, array-node, null-node, boolean-node, and number-node. (JSON strings share text node types with their XML brethren.) In order to get the serialized string you should use xdmp:quote, as you suggest.
Justin -- Justin Makeig Director, Product Management MarkLogic [email protected] > On Mar 23, 2015, at 2:45 PM, Paul Williams > <[email protected]> wrote: > > In upgrading from ML6 to ML8 we have an issue in our application code where > we are generating JSON for a client-side script. I know there has been a > huge change in JSON support, but can anyone tell me exactly what is going on > here? > > Sample code: > xquery version "1.0-ml"; > let $obj := > <json:object xmlns:json="http://marklogic.com/xdmp/json";> > <json:entry><json:key>name</json:key><json:value > xsi:type="xs:string">world</json:value></json:entry> > <json:entry><json:key>label</json:key><json:value > xsi:type="xs:string">hello</json:value></json:entry> > </json:object> > let $doc := xdmp:to-json(json:object($obj)) > return > <script type="text/javascript">var obj = {$doc}</script> > > If you execute that in ML6, as expected, you get… > <script type="text/javascript">var obj = {"name":"world", > "label":"hello"}</script> > > But in ML8, you get this error pointing at the highlighted reference > XDMP-CHILDNODEKIND: $doc -- element nodes cannot have object > node children > > I’m not sure exactly what is the “element node” this message refers to. I > know that I can quote the reference (xdmp:quote($doc)) and make it work, but > I’m trying to understand what specifically is different between ML6 & ML8 > that is causing this problem so I can be sure of my workaround. > Any comments? > TIA > > Paul Williams | Technical Consultant > M: +1 402 203 2232 | Sk: paul.wms > [email protected] > <mailto:[email protected]> > > _______________________________________________ > General mailing list > [email protected] > http://developer.marklogic.com/mailman/listinfo/general
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