Delete Records from Feature Layer using ArcGIS API for JavaScript?

Question

I am trying to delete some records from a feature layer, but I kept getting the error of invalid parameters from the errback.

Below is my code:

function deleteRecords()
{
var incidentId = 2;
var queryTaskDeleteRecords= new esri.tasks.QueryTask(FEATURE_SERVER+"/"+LAYER_V_RECORDS);
var queryDeleteRecords = new esri.tasks.Query();
queryDeleteRecords.outSpatialReference = map.spatialReference; 
queryDeleteRecords.returnGeometry = true;
queryDeleteRecords.outFields = ["*"];
queryDeleteRecords.where = FIELD_V_RECORDS_INCIDENTID + " = " + incidentId ; 
queryTaskDeleteRecords.execute(queryValveRec,deleteRecordsResults); 
}
function deleteRecordsResults(results)
{
 var featureLayer= new esri.layers.FeatureLayer( FEATURE_SERVER+"/"+LAYER_V_RECORDS,{
 outFields:["*"]
 });
 for (var i = 0; i < results.features.length; i++)
 {
 featureLayer.applyEdits(null, null, [results.features[i]], function onComplete(adds, updates, deletes)
 {
 if (deletes.length > 0)
 {
 alert("deletes : " + JSON.stringify(deletes));
 }
 },
 function errCallback(err)
 {
 alert(err);
 });
 }
}

Is there sometime wrong with the querying of features and passing the features in one by one to applyEdits for deleting?

Answer 1

After searching through the forums, there was a queestion on deleting features from a feature layer and thus I came up with this

var id = 2;
var query = new esri.tasks.Query();
query.where = FIELD_ID + " = " + id ; //the valve ops rec layer thus using the val ops rec incident id
var featureLayer = new esri.layers.FeatureLayer(FEATURE_SERVER +"/"+LAYER_V_REC,
{
 outFields:["*"]
});
featureLayer.selectFeatures(queryValveRec, esri.layers.FeatureLayer.SELECTION_NEW, 
function (features)
{
 for (var i = 0; i < features.length; i++)
 {
 featureLayer.applyEdits(null, null, [features[i]], function (adds, updates, deletes)
 {
 alert("adds : " + JSON.stringify(adds));
 alert("updates : " + JSON.stringify(updates));
 alert("deletes : " + JSON.stringify(deletes));
 }, 
 function (err)
 {
 alert(err);
 });
 }
});

and this method works rather than getting features then trying to send to applyEdits. I hope this helps someone cause it took me 2 days to find this insufferable solution.

• PolyGeo: When you get a chance I recommend that you Accept your own Answer here - just click the green tick next to it.
• jonleech: Alright will do :D