Hi Christian, thank you for your help. I'm using BaseX 8.3.1 as my query processor. I'm guilty, I'm afraid, of presenting a poorly framed question to the list. I need to mull over the problem a little more.
Thanks again! Bridger On Mon, Jan 18, 2016 at 11:32 AM, Christian Grün <[email protected]> wrote: > Hi Bridger, > > I know too little about the API you are working, and your query > processor (parts of the semantics of fn:doc are > implementation-defined), but I noticed that the URL construction might > need to be revised: > > OLD: > local:getPID(doc("$in" || "&sessionToken=" || "$rQ")) > > NEW: > local:getPID(doc($in || "&sessionToken=" || encode-for-uri($rQ))) > > Possibly, $in (or a part of it) needs to be encoded as well. > > Hope this helps, > Christian > > > > On Mon, Jan 18, 2016 at 5:09 PM, Bridger Dyson-Smith > <[email protected]> wrote: > > Hi all, > > > > I'm struggling with getting a working example of the following problem: > I'm > > sending a query to an API that returns some data and, if the data set is > > large enough, a resumption token to requery the API. > > > > I'm stuck at the point of how to generate the new query URL, while still > > processing the new data. Is the best idea to create a function that will > > update a new request to the API, or is there a different approach that > can > > be used? > > > > I've made several attempts with functions -- the latest non-working > examples > > are below -- and I'm missing... something, but I don't know what. > > > > Thanks for any guidance you can provide. > > Cheers, > > Bridger > > > > (: sample query :) > > (: > > > http://server:8080/fedora/objects?query=pid~{$collection}*&resultFormat=xml&pid=true > > :) > > > > declare variable $query external := > > ' > http://our.server:8080/fedora/objects?query=pid~gamble*&resultFormat=xml&pid=true > '; > > declare variable $sessionToken := '&sessionToken='; > > declare variable $resToken := ''; > > > > (:functions:) > > (:doesn't work:) > > declare function local:getPID($in as document-node()) as > xs:anyAtomicType* > > { > > data($in/*:resultList/*:objectFields/*:pid) > > }; > > > > (:doesn't work:) > > declare function local:reQuery( > > $in as document-node(), > > $rQ as xs:untypedAtomic*) as document-node() > > { > > let $rQ := $in/*:listSession/*:token/text() > > return ( > > if ($rQ) then > > local:getPID(doc("$in" || "&sessionToken=" || "$rQ")) > > else () > > ) > > }; > > > > (: this works processing the descendant elements but doesn't recurse :) > > for $result in fn:doc($query)/*:result > > let $resToken := $result/*:listSession/*:token/text() > > let $pid := $result/*:resultList/*:objectFields/*:pid/text() > > return ( > > $result, > > $resToken, > > $pid > > ) > > > > (: sample returned from query; e.g. $result :) > > <result xmlns="http://www.fedora.info/definitions/1/0/types/"; > > xmlns:types="http://www.fedora.info/definitions/1/0/types/"; > > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > > xsi:schemaLocation="http://www.fedora.info/definitions/1/0/types/ > > http://localhost:8080/fedora/schema/findObjects.xsd";> > > <listSession> > > <token>63c0762b5eb3d4b46c58add843b7b3e6</token> > > <cursor>0</cursor> > > <expirationDate>2016-01-18T01:40:05.381Z</expirationDate> > > </listSession> > > <resultList> > > <objectFields> > > <pid>gamble:1</pid> > > </objectFields> > > <objectFields> > > <pid>gamble:10</pid> > > </objectFields> > > </resultList> > > </result> > > > > > > > > > > > > > > _______________________________________________ > > [email protected] > > http://x-query.com/mailman/listinfo/talk >
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