[Users] FeatureStore / Grid & VectorLayer

[Andreas Hocevar]

Hey-
I don't think it is possible to just set proxy and reader of a store and
then load it again. You need to create a new store and use
grid::reconfigure to assign it the new store.

Regards,
Andreas.

Sascha Müller wrote:
> Hi,
>
> I have a featureStore with a Grid and a OL VectorLayer.
> I use the radioButtons in the treePanel for selecting the active Layer.
> When I check a radioButton, the features from the layer are load into
> the grid
> and the VectorLayer is shown in the map for each feature. Like in the
> Drake example.
> This works fine if I use at first one Layer which is load to the grid.
> If I want to enable
> that I can choose between all Layer in the treePanel, I try to use the
> createProyx() method
> like it is used in Drake (see below my createProxy method).
>
> function createProxy(layer) {
>         var type = layer || featureType; 
>         var proto = new OpenLayers.Protocol.WFS({
>               url: 'http://localhost:8081/geoserver/wfs',
>               featureType: type,
>               featureNS: "http://www.vbl.ch",
>               featurePrefix: "VBL",
>               srsName: "EPSG:4326",
>               version: "1.1.0"
>         });
>         return new GeoExt.data.ProtocolProxy({protocol: proto});
> }
>
> The featureStore looks like that:
>
> featureStore = new GeoExt.data.FeatureStore({
>             layer: wfsStoreLayer,
>             proxy: createProxy()
> });
>
> This Functions are invoked from the radioButton in the treePanel:
>
> function load2Store(selectedLayer) {
>             attributStore = new GeoExt.data.AttributeStore({
>             url: "http://localhost:8081/geoserver/wfs?service=WFS&request=DescribeFeatureType&version=1.1.0&typeName=VBL:"+
> selectedLayer
>           });
>             attributStore.load({
>             callback: function(x){
>                 fields = [];
>                 for (var i = 0; i < x.length; i++){
>                   fields.push(x[i].data);
>                 }
>                 finishActivating(selectedLayer);
>                 },
>               scope: this
>                 });
>    }
>
> function finishActivating(theLayer) {
>
>             featureStore.proxy = createProxy(theLayer);
>             featureStore.reader = new GeoExt.data.FeatureReader({},
> recordize(fields));
>
>            gridPanel.colModel.setConfig(columnize(fields));
>            gridPanel.setTitle("Attribute des Layers:&ensp;" + theLayer);
>
>            reloadFeatureStore();
>         }
>         
> function reloadFeatureStore() {
>            featureStore.load();
> }
>
> If I use the create Proxy Method, the VectorLayer isn't show up un the
> MapPanel.
> I Know there is a difference between Drake and Geoext. But maybe the
> difference
> isn't cause of the problem.
>
> Thanks for help!
>
> Sascha Müller
>
>
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>   


-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.