On Thursday, May 20, 2010, Adam Ratcliffe <[email protected]> wrote:
> I have a FeatureStore instance associated with a map vector layer, the vector
> layer has a DrawFeature control associated with it.
>
> When a new feature is created the FeatureStore.onFeaturesAdded() method is
> called to create a new record in the store for the feature. The record is
> created but it does not receive the Open Layers feature ID because it's in an
> INSERT state, as per this code in the FeatureReader class:
>
> // newly inserted features need to be made into phantom
> records
> var id = (feature.state === OpenLayers.State.INSERT) ?
> undefined : feature.id;
> records[records.length] = new recordType(values, id);
>
> If I save the vector layer the feature is updated to no longer be in an
> INSERT state.
Is the feature updated or is a new feature created?
> When I try to retrieve the record for the feature from the store using the
> FeatureStore.getRecordFromFeature() method it fails due to this logic in
> FeatureStore.getRecordFromFeature():
>
> if(feature.state !== OpenLayers.State.INSERT) {
> record = this.getById(feature.id);
> } else {
> var index = this.findBy(function(r) {
> return r.get("feature") === feature;
> });
> if(index > -1) {
> record = this.getAt(index);
> }
> }
>
> The record is no longer in an INSERT state so it will try to find the record
> by feature ID but the record only exists as a phantom (ID less) record in the
> store.
>
> Is this a bug or do I need to explicitly update the record in the store after
> the feature is saved?
In my opunion you'd be better off destroying the feature marked
"INSERT" and creating and adding a new feature (with an id).
Cheers,
--
Eric Lemoine
Camptocamp France SAS
Savoie Technolac, BP 352
73377 Le Bourget du Lac, Cedex
Tel : 00 33 4 79 44 44 96
Mail : [email protected]
http://www.camptocamp.com
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