How to break bond of select and modified feature OpenLayers

Question

I have select and modify interaction instantiated. Also I have event onChange binded to selected feature.

select.getFeatures().getArray()[0].on('change',function (){
    sources.verteksi.clear()
    koordinate=select.getFeatures().getArray()[0].getGeometry().getCoordinates()
    koordinate.forEach(function(koord){
        koord.forEach(function(ko){
            sources.verteksi.addFeature(new ol.Feature({geometry:new ol.geom.Point(ko,'XY')}))
        })  
    })  
})

On the other hand I have layer which I modify and select :

arkod_editing=new ol.layer.Vector({
    source: sources.arkod_editing,
    style: new ol.style.Style({
        stroke: new ol.style.Stroke({
            color: 'red',
            width: 2
        }),
        fill: new ol.style.Fill({
            color:'rgb(190,270,80,0.5)'
        }),

        })
  }) 

The problem is when I modify feature from arkod_editing layer I send it to transactional WFS but before I am setting id of feature which triggers onChange event like feature is coming from select layer. Is it possible to outflank the bond beetween select and modified feature in layer arkod_editing?

Answer 1

You could use the modify start and end events to set a flag which could be tested in the feature change events

    var modifying = false;
    modify.on('modifystart', function(){ modifying = true; });
    modify.on('modifyend', function(){ modifying = false; });

Modify causes feature change events to fire repeatedly while the interaction is active. It would be more efficient to use the modify end event to process the changed feature.