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From Geek Gamer <geek4...@gmail.com>
Subject Re: dataimporthandler and javascript transformer and default values
Date Mon, 14 Jun 2010 12:19:43 GMT
hi,

check Regex Transformer
http://wiki.apache.org/solr/DataImportHandler#RegexTransformer

umar

On Mon, Jun 14, 2010 at 5:44 PM, <Markus.Rietzler@rzf.fin-nrw.de> wrote:

> hi,
>
> i have two questions:
>
> 1) how can i set a default value on an imported field if the
> field/column is missing from a SQL query
> 2) i had a problem with the dataimporthandler. in one database column
> (WebDst) i have a string with a comma/semicolon seperated numbers, like
>
>        100,200; 300;400, 500
>
> there can be a space or not. i want to have a multivalued field in the
> end like
>
> <arr name="__intern">
>        <str>100</str>
>        <str>200</str>
>        <str>300</str>
>        <str>400</str>
>        <str>500</str>
> </arr>
>
> i thought that the javascript/script-transformer could do the trick. i
> have a script like
>
>  <script><![CDATA[
>        function dst2intern(row) {
>            var webdst='';
>            var count = 0;
>            webdst = row.get('WebDst');
>            var arr = new java.util.ArrayList();
>            if (webdst) {
>                // var dst = webdst.split(/[,; ] */);
>                var dst = webdst.split(';');
>                for (var i=0; i<dst.length; i++) {
>                    arr.add(dst[i]);
>                    count++;
>                }
>                if (!count) {
>                    arr.add('0');
>                }
>                row.put('intern', arr);
>            } else {
>                arr.add('0');
>                row.put('intern', arr);
>            }
>            return row;
>        }
>    ]]></script>
>
> in my entity-definition i have
> transformer="RegexTransformer,script:dst2intern,TemplateTransformer"
>
> and then i have a field __intern
>
>  <field name="__intern" column="intern" />
>
> i thought that this would work perfect. it seems the split only can
> split on ; when comparing a single char.
> the regex with
>
>        webdst.split(/[,; ] */);
>
> doesn't work. i have check it in a simple html-page, there the
> javascript split works with the regex.
> the solution which works for me is to first use a regex transformer on
> WebDst
>
> <field name="WebDst" regex="[,; ] *" replaceWith=";" column="WebDst" />
> <field name="__intern" column="intern" />
>
> and use a simple ";" split in the javascript.
>
> i am using solr 1.4, java 1.6...
>
> does anyone know or can tell my, why the javascript split with a regex
> doesn't work?
>
> thank you
>
> markus
>
>
>
>

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