Re: [basex-talk] how to declare an updating function parameter in a high-order function signature ?

[Fabrice ETANCHAUD]

Thank you Christian.

There is something faster than BaseX : its support !

Best regards,

-----Message d'origine-----
De : Christian Grün [mailto:christian.gr...@gmail.com] 
Envoyé : mardi 6 février 2018 15:44
À : Fabrice ETANCHAUD
Cc : basex-talk@mailman.uni-konstanz.de
Objet : Re: [basex-talk] how to declare an updating function parameter in a 
high-order function signature ?

Hi Fabrice,

I believe it should be sufficient to prepend the "updating" keyword before your 
function call [1]:

  updating $builder(...)

Greetings from the (yes, currently) sunny Lake Constance, Christian

[1] http://docs.basex.org/wiki/XQuery_Update#User-Defined_Functions



On Tue, Feb 6, 2018 at 3:37 PM, Fabrice ETANCHAUD <fetanch...@pch.cerfrance.fr> 
wrote:
> Dear all,
>
>
>
> I cannot find a way to tell the xquey engine that a function parameter 
> of my high-order function is updating :
>
>
>
> declare %updating function etebac:build-updating($file as xs:string, 
> $builder as %updating function(*) ) {
>
>   for tumbling window $line in (file:read-text-lines($file))
>
>   start $start-item when etebac:record-header($start-item) = '01'
>
>   end $end-item when etebac:record-header($end-item) = '07'
>
>   let $doc := etebac:build-json($line)
>
>   let $start := format-date(xs:date($doc/date-ancien-solde),
> '[Y0001][M01][D01]')
>
>   let $stop := format-date(xs:date($doc/date), '[Y0001][M01][D01]')
>
>   let $doc-id := string-join(($doc/rib, $start, $stop), '-')
>
>   let $doc-path := string-join(
>
>     ($doc/(banque, guichet, compte), $start || '-' || $stop), '/')
>
>   let $out-file := concat($doc-path, '.json')
>
>   where count($doc/operations/_) > 0
>
>   return
>
>     $builder(
>
>       $doc-path,
>
>       element json {
>
>         attribute type { 'object' },
>
>         element meta {
>
>           attribute type { 'object' },
>
>           element type { 'releve-operations' },
>
>           element id { $doc-id }
>
>         },
>
>         element data {
>
>           $doc/(*|@*)
>
>         }
>
>       }
>
>    )
>
> };
>
>
>
> I have a [XPTY0004] Function must not be updating: %updating
> function($path,$doc) a... error.
>
>
>
> The outer call is  :
>
>
>
> import module namespace etebac =
> 'http://pch.cerfrance.fr/basex/modules/etebac' at 'etebac.xqm';
>
>
>
> etebac:build-updating('D:\edi\banque\input\10278\10278_CMLACO_20160701
> .183',
>
>     db:replace('test', ?, ?)
>
> )
>
>
>
> What have I to do to tag my $builder function reference as updating in 
> the main body ?
>
>
>
> Best regards from the snowy french atlantic coast,
>
> Fabrice