[Users] Ext 3, printExtent, vector-layers with attributes and too much recursion

[Andreas Hocevar]

Hi Marc,

the issue you are seeing is not related to #133. But you could easily avoid it by not referencing GeoExt objects in feature attributes. This is a bad practice anyway (just as bad as what we do in Feature- and LayerRecords). If you really need features to keep a reference to GeoExt objects, don't do it on the attributes, but e.g. on the feature directly (e.g. feature.test instead of feature.attributes.test).

Regards,
Andreas.

On Aug 9, 2010, at 12:36 , Marc Jansen wrote:

> Hi list,
> 
> I get a too much recursion exception when I try to print a vectorlayer 
> that has features with attributes that reference GeoExt-objects. I am 
> pretty sure that the issue I have is related to this ticket:
> https://www.geoext.org/ticket/133
> 
> You can test the behaviour with the online print-example: 
> http://dev.geoext.org/trunk/geoext/examples/print-extent.html
> 
> Just add a new layer to the mappanel with firebug and give it afeature 
> that has one of its attributes pointing towards the mappanel object:
> 
> 
> var v = new OpenLayers.Layer.Vector('testmj');
> mapPanel.map.addLayer(v);
> 
> v.addFeatures([
>   new OpenLayers.Feature.Vector(
>    OpenLayers.Geometry.fromWKT(
>     "POLYGON(146.1 -41, 146.2 -41, 146.2 -41.1, 146.1 -41.1)"
>    ), {test:mapPanel}  // this is causing the infinite recursion
> )]);
> 
> 
> If you hit "print" afterwards, the error occurs.
> 
> Attached to the ticket #133 (current status "Needs more work") there is 
> a patch, which is not in trunk yet. Is there any chance this ticket gets 
> closed soon? Or can anybody provide a suitable workaround?
> 
> Regards and thanks in advance,
> Marc
> 
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-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.