Hi Erik, Yes indeed, that was the missing part. For the record, here is the correct example (for my case), accessing in XQuery a JS array as a sequence, and accessing the value of the property of a JS object:
xdmp.xqueryEval( `declare namespace json = "http://marklogic.com/xdmp/json";; declare variable $obj external; json:array-values($obj) ! map:get(., 'name')`, { obj: [{ name: 'name', title: 'title' }] }); Thank you! Regards, -- Florent Georges H2O Consulting http://h2o.consulting/ On 17 June 2017 at 08:11, Erik Hennum wrote: > Hi, Florent: > > Much the way JavaScript objects turn into json:object values in XQuery, > JavaScript arrays turn into json:array values in XQuery. > > When appropriate, you can use json:array-values() to convert a json:array > value to a sequence. > > > Hoping that helps, > > > Erik Hennum > > > ------------------------------ > *From:* general-boun...@developer.marklogic.com [ > general-boun...@developer.marklogic.com] on behalf of Florent Georges [ > li...@fgeorges.org] > *Sent:* Friday, June 16, 2017 2:40 PM > *To:* MarkLogic Developer Discussion > *Subject:* Re: [MarkLogic Dev General] Accessing properties of in-memory > JS object in XQuery > > Hi Geert, > > I was mot expecting Europe to still answer at this time, but that was > counting without you ;-) Thank you, it works indeed as a charm. > > But it seems I oversimplified my example. The problem actually comes from > the fact that the value is an array of objecst, and just iterating over it > like a sequence of items does not work. > > This modified example gives this extra complexity: > > xdmp.xqueryEval( > `declare variable $obj external; > $obj ! map:get(., 'name')`, > { obj: [{ name: 'name', title: 'title' }] }); > > Regards, > > -- > Florent Georges > H2O Consulting > http://h2o.consulting/ > > > On 16 June 2017 at 23:18, Geert Josten wrote: > >> It is a json:object (the map:map specialization).. >> >> Try: >> >> xdmp.xqueryEval( >> 'declare variable $obj external; map:get($obj, "name")', >> { obj: {name: 'name', title: 'title' }}); >> >> >> Cheers, >> Geert >> >> >> On 6/16/17, 9:27 PM, "general-boun...@developer.marklogic.com on behalf >> of >> Florent Georges" <general-boun...@developer.marklogic.com on behalf of >> li...@fgeorges.org> wrote: >> >> >Hi, >> > >> >I have an SJS script that calls a function from an XQuery library. It >> >passes a JS object to the function. The function needs to access the >> >value of one property of the object (in this case, a string). >> > >> >I can't find in the documentation how XQuery code can navigate through >> >the properties of an in-memory JS object. Any idea? >> > >> >A self-contained example (my code require() an XQuery library and >> >calls a function instead of using code evaluation, but the issue is >> >the same): >> > >> > xdmp.eval( >> > `declare variable $obj as external; >> > $obj ! xs:string(name)`, >> > { name: 'name', title: 'title' }); >> > >> >I am using ML 9. >> > >> >Regards, >> > >> >-- >> >Florent Georges >> >H2O Consulting >> >http://h2o.consulting/ >> >_______________________________________________ >> >General mailing list >> >General@developer.marklogic.com >> >Manage your subscription at: >> >http://developer.marklogic.com/mailman/listinfo/general >> >> _______________________________________________ >> General mailing list >> General@developer.marklogic.com >> Manage your subscription at: >> http://developer.marklogic.com/mailman/listinfo/general >> > > > > > > _______________________________________________ > General mailing list > General@developer.marklogic.com > Manage your subscription at: > http://developer.marklogic.com/mailman/listinfo/general > > -- Florent Georges http://fgeorges.org/ http://h2o.consulting/ - New website!
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