[OpenLayers-Users] How to insert that I digitized Feture in my WFS layer?

[Christopher Schmidt]

On Wed, Nov 19, 2008 at 08:02:48AM -0800, ironbar wrote:
> 
> I am working with the example vector formats example
> (http://openlayers.org/dev/examples/)
> I created my own wfs layer to which I would like add feature (polygon, line)
> that I digitize on the viewer.
> Now I want to keep most of the script of vector formats example example -
> that is why I want to create function that will create wfs transaction that
> is it will perform wfs insert operation to the layer that I have already
> created.
> So I need function that will perfrom wfs Insert transaction
> Something like this:
> 
> function wfs_insrt(feature, wfsl)
> {
> var wff= new OpenLayers.Format.WFS({layerName:'topp:mywfs'},wfsl);
> 				
> feature.state = OpenLayers.State.INSERT;
> 
> wff.insert(feature);
> 
> }

No. You don't want to do this. 
  
  1. Formats only create strings/DOM elements or Features. They don't
     actually save to the server.
  2. Formats only expose two API methods -- read and write. You can
     probably get a WFS transaction via wff.write([feature]), but that
     won't save to the server, only return a string.
  3. The WFS Layer already *has* support for this -- simply call
     wfsl.commit() to serialize and save to the server.   

> So input parameters are the feature and wfs layer and output should be
> executed wfs insert transaction.

OpenLayers does not, at this time, have any methods which you can call
which allow you to pass a feature and execute a WFS insert transaction
-- the way to do this is to add the feature to the layer (as the drawing
tools do automatically) and then call layer.commit().

Regards,
-- 
Christopher Schmidt
MetaCarta