Can you suggest the best way to do that?  I tried casting it as a string in the 
return but that doesn’t do the job (and doesn’t show any error).

let $outputJSON:=("{"events":[",
let $config := json:config("full"),
                $cx := map:put( $config, "whitespace", "ignore" )
let $count:= fn:count($search-this-partner/event)
for $events at $counter in $search-this-partner/event
order by $events/EventStartDate/@date descending
  return
  fn:string(fn:string-join(json:transform-to-json( fn:doc($events/doc-uri), 
$config ),",")),
"]}")


From: [email protected] 
[mailto:[email protected]] On Behalf Of Christopher Hamlin
Sent: Tuesday, November 17, 2015 9:37 AM
To: MarkLogic Developer Discussion <[email protected]>
Subject: Re: [MarkLogic Dev General] $counter < i -- I might be overthinking 
this

json:transform-to-json is returning a document node.  fn:concat takes a bunch 
of things and casts them to xs:string.  fn:string-join takes strings 
specifically.
So two possibilities:
1.  You need to change the docs to strings before doing string-join.
2.  Make sure the strings are in a sequence, not "loose" like for fn:concat.
/ch

On Tue, Nov 17, 2015 at 12:30 PM, Kari Cowan 
<[email protected]<mailto:[email protected]>> wrote:
fn:string-join - I thought about that – tried it but it didn’t join each with 
the comma – it also didn’t give me any error.  That would have been the 
simplest had it worked; wouldn’t need the if statement at all.   I thought 
perhaps it’s not really a string, but documents that are transformed to JSON 
from XML? (not sure, that’s still going to return as a string I think).  Any 
idea why fn:string-join didn’t work?

So I tried the counter idea Gert suggested – this seems to work, as long as the 
ordering is ‘descending’ – if I switch it to ascending, it gets quirky – Is it 
using the native state not what I set?

let $outputJSON:=("{&#34;events&#34;:[",
let $config := json:config("full"),
                $cx := map:put( $config, "whitespace", "ignore" )
let $count:= fn:count($search-this-partner/event)
for $events at $counter in $search-this-partner/event
 order by $events/EventStartDate/@date descending
  return if( $count > $counter ) then
   ( fn:concat(json:transform-to-json( fn:doc($events/doc-uri), $config ), 
","),"count: ", $count, "counter: ", $counter )
else
  ( json:transform-to-json( fn:doc($events/doc-uri), $config ), "else count: ", 
$count, "else counter: ", $counter),
"]}")





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