[Chameleon] Changing class expression

[Francesco Palermo]

Alle 14:20, lunedì 19 settembre 2005, Paul Spencer ha scritto:
> Francesco,
> 
> this should work as long as you use oMapSession to save the state of  
> the map file after you have changed it in the iframe.  For instance,
> 
> $_SESSION['gszCurrentState'] = $oMapSession->saveState();
> 
> Cheers
> 
> Paul
> 


thank you Paul for your answer!

where i can get more information about $oMapSession object and his properties 
and methods?

Francesco


> On 18-Sep-05, at 1:48 PM, Francesco Palermo wrote:
> 
> > Hello list,
> >
> > i would like to modify the class expression of some layers of my  
> > map but i
> > don't know how i can get this control on the layer.
> > i understood that the map is accessible trough the oMapsession  
> > object and
> > further by the embedded objects.
> > so, is there any way to change the class expression and to reload  
> > the map?
> >
> > my code that is in an iframe is:
> > ---
> > [...]
> > // Setting the class expression
> >     $baseLayer = $oMapSession->oMap->getLayer(0);
> >     $baseLayer -> set ("status",MS_OFF);
> >     $class = $baseLayer->getClass(0);
> >     $class -> setexpression('374');
> > [...]
> >
> > // reloading the map through a button
> > <input type="button" value="Invia"
> > onclick="parent.window.document.forms[0].submit()";
> > ---
> >
> > i'm sorry but i'm a newbie ;))
> >
> > thank you
> >
> >
> > -- 
> > Francesco Palermo
> > _______________________________________________
> > Chameleon mailing list
> > Chameleon at lists.maptools.org
> > http://lists.maptools.org/mailman/listinfo/chameleon
> >
> 
> +-----------------------------------------------------------------+
> |Paul Spencer                           pspencer at dmsolutions.ca   |
> +-----------------------------------------------------------------+
> |Applications & Software Development                              |
> |DM Solutions Group Inc                 http://www.dmsolutions.ca/|
> +-----------------------------------------------------------------+
> 

-- 
Francesco Palermo