SLD resquest issue with EXPRESSION parameter

[Jacolin Yves]

Thanks Yewondwossen Assefa,

One more question, do you know some issue with the EXPRESSION parameter (for 
instance a simple EXPRESSION ('[ZONE_]' eq 'UCa')) AND the number of CLASS in 
a LAYER?

My problem is that the GetStyles request send back an empty xml file with 
EXPRESSION and if more than 6 CLASSE objects are used.

If I coment all the EXPRESSION, I get an XML file. Actualy, if I uncoment  
EXPRESSION in more than 6 CLASSes, the xml file will be empty.

Furthermore, even if I get an xml file, it seems there is a problem in my XML 
data :
<ogc:Filter>
	<ogc:PropertyIsEqualTo>
		<ogc:PropertyName>ZONE_</ogc:PropertyName>
		<ogc:Literal></ogc:Literal>
	</ogc:PropertyIsEqualTo>
</ogc:Filter>

Or for one of them :

<ogc:Filter>
	<ogc:PropertyIsEqualTo>
		<ogc:PropertyName>ZONE_</ogc:PropertyName>
		<ogc:Literal>��p �$~����� </ogc:Literal>
	</ogc:PropertyIsEqualTo>
</ogc:Filter>

As you can see, the Literal properties is empty or unusable :(

Tthe FILTER parameter doesn't seem to be usable for the GetStyles request. Am 
I right?

Best regards,

Y.
Le Friday 02 November 2007 20:45:46 Yewondwossen Assefa, vous avez écrit :
> Hi There,
>
>   I have entered a bug regarding this at
> http://trac.osgeo.org/mapserver/ticket/2380. Only one level of logical
> expression ( A AND B) was initially supported. It should be possible to
> extend it to support several levels using para theses (something like (A
> AND B) AND (C).
>
> Best Regards
>
> Jacolin Yves wrote:
> > Hi list,
> >
> > I am using Mapserver as a OGC webserver. I am trying the GetStyles
> > request and find some issues. Someone asked about this issue in the
> > mailing list in the short last few monthes.
> >
> > I got some LAYER which contains about 12 CLASS objets, this CLASS
> > contains EXPRESSION parameter. Here an exemple :
> >   CLASS
> >    NAME "M1 : La Défense - Château de Vincennes"
> >    EXPRESSION ('[TYPE]' eq 'M' AND '[NUMERO]' eq '1' AND '[DATE_LIV]'
> > < '200712')
> >    COLOR 255 255 0
> >    SIZE 3
> >    SYMBOL 1
> >   END
> >
> > There are 24 class like this one.
> >
> > If I try a GetStyles request on this kind of layer, nothing occurs (ie
> > blank page), if I remove most CLASS the XML response is displayed, If I
> > remove only the EXPRESSION parameter, again the XML response is
> > displayed. So I think the issue is not link to the number of CLASS
> > object, but rather with EXPRESSION parameter.
> >
> > BUT, in an other LAYER, I got only three CLASS object with EXPRESSION
> > parameter, and the xml response is displayed.
> >
> > Finally, it seems that if a LAYER got a lot of CLASS object with
> > EXPRESSION parameter inside, the XML response failed. And if a LAYER
> > object got a lot of CLASS object, the XML response failed as well.
> >
> > I am using Mapserver 4.10. Are someone aware of this issue and know a
> > workaround.
> >
> > Thanks,
> >
> > Y.



-- 
Yves Jacolin
---
http://softlibre.gloobe.org