[Users] Building a WFS-T-application; Problem rendering WFS

[Adam Ratcliffe]

HI Andreia,

I note that you've commented out the 'extent' option in the MapPanel
configuration and you have no 'zoom' and 'center' options specified -
could that be the problem?

You could try adding the vector layer to the map and letting the
MapPanel create a LayerStore for you from the map's 'layers' array,
though looking at the docs the 2 approaches look like they should be
equivalent.

Cheers
Adam

On Mon, Aug 16, 2010 at 9:24 PM, andreia farrér
<andreia.farrer at gmail.com> wrote:
> Dear List
> I am trying to build a WFS-T-application with GeoExt/Openlayers. The
> features are stored in a PostGIS-DB and are served by Geoserver.
> I managed to retrieve the features (as stated by HttpFox), but somehow they
> won't show up in my mappanel. The code is based on the
> wfs-states.html-example
> (http://openlayers.org/dev/examples/wfs-states.html). I simply can't figure
> out why the features aren't rendered.
> Here's my snippet:
>
>> Ext.BLANK_IMAGE_URL = "../ext/resources/images/default/s.gif";
>>
>>         Ext.onReady(function() {
>>             OpenLayers.ProxyHost = "../cgi-bin/proxy.cgi?url=";
>>
>> var map_options = {maxExtent: new OpenLayers.Bounds(10000, -240000,
>> 1380000, 580000),
>>                 numZoomLevels: 12, maxScale: 5000, minScale: 2000000,
>> units: 'm',  projection: 'EPSG:21781'};
>>
>>             var map = new OpenLayers.Map(map, map_options,{
>>                 allOverlays: true
>>                 });
>>
>>             var modifyControl = new
>> OpenLayers.Control.ModifyFeature(ogmlines); //ÄNDERN!
>>             map.addControl(modifyControl);
>>             modifyControl.activate();
>>
>>
>> var saveStrategy = new OpenLayers.Strategy.Save({
>>                 onCommit: function() {
>>                     saveStrategy.ogm_lines.refresh();
>>                 }
>>             });
>>
>> ogmlines = new OpenLayers.Layer.Vector("lines",{
>>                 strategies:[
>>                 new OpenLayers.Strategy.BBOX(),
>>                 saveStrategy
>>                 ],
>>                 projection: new OpenLayers.Projection("EPSG:21781"),
>>                 protocol: new OpenLayers.Protocol.WFS({
>>                     version: '1.1.0',
>>                     srsName: 'EPSG:21781',
>>                     url: 'http://localhost:8090/geoserver/wfs',
>> //?strict=true
>>                     featureType: 'ogm_lines',
>>                     featurePrefix: 'OpenGeoMap',
>>                     geometryName: 'the_geom',
>>                     extractAttribute: true
>>                 }),
>> });
>>
>> var mapPanel = new GeoExt.MapPanel({
>>                 title: "Map",
>>                 region: "west",
>>                 width: 600,
>>                 map: map,
>>                 layers: [ogmlines],
>>                 //extent: new OpenLayers.Bounds(485000, 63000, 833000,
>> 296000),
>>                 bbar: [
>>                     new GeoExt.Action({
>>                         control: new OpenLayers.Control.DrawFeature(
>>                             ogmlines, OpenLayers.Handler.Polygon, {
>> //ogmlines!
>>                                 handlerOptions: {multi: true}
>>                             }
>>                         ),
>>                         text: "Create",
>>                         toggleGroup: "tools",
>>                         map: map
>>                     }), {
>>                         text: "Delete",
>>                         handler: function() {
>>
>> gridPanel.getSelectionModel().each(function(rec) {
>>                                 var feature = rec.get("feature");
>>                                 modifyControl.unselectFeature(feature);
>>                                 gridPanel.store.remove(rec);
>>                                 if(feature.state !==
>> OpenLayers.State.INSERT) {
>>                                     feature.state =
>> OpenLayers.State.DELETE;
>>                                     ogm_polygons.addFeatures([feature]);
>>                                 }
>>                             })
>>                         }
>>                     }, "->", {
>>                         text: "Save",
>>                         handler: function() {
>>                             store_polygons.commitChanges();
>>                             saveStrategy.save();
>>                         }
>>                     }
>>
>>                 ]
>>             });
>> }
>
> Any help is HIGHLY appreciated.
> Kind regards
> Andreia
>
> --
> Andreia Farrér, Birmensdorferstr. 260, 8055 Zürich; phone: +41 78 825 44 93
>
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