[OpenLayers-Users] WFS-T

[Alexandre Dube]

Hey,

40.000 is sure big.  You could try the Cluster strategy [1], or have you 
points in WMS when zoomed out then changed to WFS when zoomed in.  The 
latter is what I'm doing in the demo I sent you.  Load it, then zoom 
out.  You'll see that the roads switch from WFS to WMS.  You could also 
do that.

Best regards,

Alexandre

[1] http://openlayers.org/dev/examples/strategy-cluster.html


JuKiM wrote:
> Ok..
>
> And about the other question.. If in the datasource there are about 
> 40.000 positions... Is a good way to try loading them with WFS? Or 
> using WMS is recommended?
>
> Thanks!
>
>
> 2009/11/25 Alexandre Dube <adube at mapgears.com <mailto:adube at mapgears.com>>
>
>     Hi,
>
>      Just before your commit, you need to copy the your field values
>     to the feature's attributes.  They will then be part of the
>     'insert' request sent to your server.  See an example (demo) of
>     what I'm talking about [1].  It uses TinyOWS, but it should be
>     similar to what you're seeking to do.
>
>      Hope this helps,
>
>     Alexandre
>
>
>     [1] http://dev4.mapgears.com/bdga/bdgaWFS-T.html
>
>
>     JuKiM wrote:
>
>         Hi,
>
>         I'm searching documentation about WFS-T, because with I can
>         understand, it let to create new entries in the datastore
>         through the GeoServer....
>
>         I create the map, and a wms layers which is displayed, and
>         then I create the wfs layer..
>
>         wfs = new
>         OpenLayers.Layer.WFS("Test_Layer","http://localhost:8080/geoserver/wfs",
>                        {typename: 'Test:dots'},
>                        {
>                            typename: "dots",
>                            featureNS: "http://www.uriURL.org/test",
>                            extractAttributes: false,
>                            commitReport: function(str) {
>                             alert(str);
>                                OpenLayers.Console.log(str);
>                            }
>                        }
>                    );
>
>         var draw = new OpenLayers.Control.DrawFeature(
>                        wfs, OpenLayers.Handler.Point,
>                        {
>                            handlerOptions: {freehand: false, multi: true},
>                            displayClass: "olControlDrawFeaturePoint"
>                        }
>                    );
>                                var save = new OpenLayers.Control.Button({
>                        trigger: OpenLayers.Function.bind(wfs.commit, wfs),
>                        displayClass: "olControlSaveFeatures"
>                    });
>                              panel.addControls([
>                        new OpenLayers.Control.Navigation(),
>                        save, draw
>                    ]);
>                      map.addControl(panel);
>
>         When I save the new points, they are insterted in the DB, but
>         with empty values.. Only the auto incremental id is created..
>         In my table there are four fields, 'id', 'location',
>         'description', 'type'. How can I configure the WFS calls to
>         create the new entries with all the information? (The
>         information about description and type is the same, and is
>         stored in a textfield, and the location should be the
>         different points of the map..
>
>         And on the other hand, if the datasource contains about 40.000
>         positions, is better to work with WMS and process the
>         information in server side?
>
>         Thanks!
>         ------------------------------------------------------------------------
>
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>          
>
>
>
>     -- 
>     Alexandre Dubé
>     Mapgears
>     www.mapgears.com <http://www.mapgears.com>
>
>


-- 
Alexandre Dubé
Mapgears
www.mapgears.com