topic Re: Feature Layer from Feature Collection applyEdits don't work in Web AppBuilder Custom Widgets Questions

Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Thu, 20 Apr 2017 10:45:17 GMT

Hello,

In a widget I create a new Feature Layer from Feature Collection. From web service I want to add features to this Feature Layer. When I fire applyEdits() function to add the features everything goes well without any error message. But the Feature Layer is still empty. I tried to add edits-complete event and it also fired after complete adding features, so everything seems to be good but the Feature Layer is still empty.

My code is almost the same as this sample code Feature collection | ArcGIS API for JavaScript 3.20

But I don't know where could be the problem because the whole code works.

Have anyone an idea?

Thanks for any help.

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Thu, 20 Apr 2017 12:41:07 GMT

Zdeněk,

You would need to share your code. I do this all the time and have had FeatureLayer FeatureCollection working in my eSearch widget for a long time now.

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Sun, 12 Dec 2021 10:14:50 GMT

Robert,

Here is my code:

startup: function() {
        this.inherited(arguments);
        var map = this.map;
        var featureLayer;
        //create a feature collection 
        var featureCollection = {
           "layerDefinition": null,
           "featureSet": {
              "features": [],
              "geometryType": "esriGeometryPoint"
           }
        };
        featureCollection.layerDefinition = {
           "geometryType": "esriGeometryPoint",
           "objectIdField": "ObjectID",
           "drawingInfo": {
            "renderer": {
              "type": "simple",
              "symbol": {
                "type": "esriPMS",
                "url": "images/carElt.png",
                "contentType": "image/png",
                "width": 15,
                "height": 15
              }
            }
          },
           "fields": [{
              "name": "ObjectID",
              "alias": "ObjectID",
              "type": "esriFieldTypeOID"
           }, {
              "name": "car_spz",
              "alias": "Vozidlo (SPZ)",
              "type": "esriFieldTypeString"
           }, {
              "name": "Locality",
              "alias": "Lokalita",
              "type": "esriFieldTypeString"
           }, {
              "name": "Age",
              "alias": "Stáří",
              "type": "esriFieldTypeString"
           }]
        };
        //define a popup template
        var popupTemplate = new PopupTemplate({
           title: "{Vozidlo (SPZ)}",
           //description: "{description}"
        });
        //create a feature layer based on the feature collection
        featureLayer = new FeatureLayer(featureCollection, {
           id: 'carPosition',
           infoTemplate: popupTemplate
        });

        //associate the features with the popup on click
        featureLayer.on("click", function(evt) {
          map.infoWindow.setFeatures([evt.graphic]);
        });
        map.on("layers-add-result", function(results) {
          requestCar();
        });
        map.addLayers([featureLayer]);

        function requestCar() {
          var requestHandle = esriRequest({
            url: "http://server.domain.cz/ws/?cmd=getrealtimevehiclelist&auser=carposition&apass=0dotlE&outproj=JTSK&resfields=id;fullname;name;locality;age;topgroup;position&grp=-2000&resgroups=carcontrol&output=js",
            handleAs: "json"
          });
          requestHandle.then(requestSucceeded, requestFailed);
        }
        function requestSucceeded(response, io) {
        //loop through the items and add to the feature layer
        var features = [];
        array.forEach(response.response.resultitems, function(item) {
          //console.log(item)
          var attr = {};
          attr["car_spz"] = item.fullname;
          attr["Locality"] = item.locality;
          attr["Age"] = item.age;
          //console.log(attr)
          var geometry = new Point({"x":item.position.x,"y":item.position.y,"spatialReference":{"wkid":5514}});
          //console.log(geometry)
          var graphic = new Graphic(geometry);
          graphic.setAttributes(attr);
          features.push(graphic);
        });
        console.log(features)
        featureLayer.applyEdits(features, null, null, function (add){
          array.forEach(add, function (a){
            console.log("success")
            console.log(a.status)
          })
        }, function (error){
          console.log("error")
          console.log(error)
        });
      }
      
      function requestFailed(error) {
        console.log('failed');
      } 
      }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

the features object is after forEach loop successfully filled. ApplyEdits goes through a function not error function but the feature layer remains empty.

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Thu, 20 Apr 2017 13:55:15 GMT

Zdeněk,

If you are using an esri basemap then you will need to re-project your graphics to 102100 as your 5514 data will not work properly since this is a featurecollection and does not automatically re-project your data.

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Thu, 20 Apr 2017 14:02:52 GMT

Robert,

I am not using an esri basemap. My basemap has the same projection as created points.

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Thu, 20 Apr 2017 14:17:02 GMT

So if you where to add this code:

console.info(this.map.spatialReference.wkid);

it would return 5514? Can you check that for me?

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Thu, 20 Apr 2017 14:25:09 GMT

It returned 102067 which is the second wkid for the same projection. For sure I changed the wkid of points to the same 102067. But the feature layer is still empty.

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Thu, 20 Apr 2017 14:37:35 GMT

And your sure the data coming from

http://server.domain.cz/ws/?cmd=getrealtimevehiclelist&auser=carposition&apass=0dotlE&outproj=JTSK&resfields=id;fullname;name;locality;age;topgroup;position&grp=-2000&resgroups=carcontrol&output=js

is in WKID 102067 or 5514 and not something like 4326?

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Thu, 20 Apr 2017 14:44:52 GMT

Yes, I am sure.

But maybe I found where is the problem. The feature layer I created has spatialReferece 4326. But in the documentation FeatureLayer | API Reference | ArcGIS API for JavaScript 3.20 I didn't find if it's possible to change spatialReference for feature layer made from featureCollection. I tried to add the code

"spatialReference":[{
"wkid":102067
}],

to the layerDefiniton part but the spatialReference of the feature layer is still 4326.

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Thu, 20 Apr 2017 15:07:10 GMT

Well the spatialReference is not expecting an array.

"spatialReference":{
"wkid":102067
},

But I don't think you can specify the spatialReference in the layerDefinition anyway.

I don't see how the layer is getting a wkid of 4326 since I don't see that in your code anywhere and the geometry you are adding has a spatialReference defined.

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Thu, 20 Apr 2017 15:13:17 GMT

I was also suprised. I don't know why has the feature layer wkid of 4326 but it has. And probably you were right I tried to change the code in layerDefinition to "spatialReference":{
"wkid":102067
}, and nothing changed.

So do you have any idea how to set the right wkid to the feature layer?

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Thu, 20 Apr 2017 15:14:44 GMT

How are you checking the wkid of the layer to know it is 4326?

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Thu, 20 Apr 2017 15:18:41 GMT

I printed featureLayer.spatialaReference to thé console

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Thu, 20 Apr 2017 15:32:42 GMT

Was this after graphics were added to it or before?

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Thu, 20 Apr 2017 15:43:31 GMT

It was after graphics were added

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Thu, 20 Apr 2017 15:51:06 GMT

Is it null before you add graphics? Normally when you add the first graphic it's SR is what sets the layers SR. So that means your graphics are getting added as 4326. What do you X,Y values look like?

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Fri, 21 Apr 2017 05:42:13 GMT

Robert,

If I create the feature layer without adding any points => graphics parametr of the layer is empty the feature layer has SR wkid 4326 already in this step.

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Fri, 21 Apr 2017 07:36:45 GMT

Robert,

I dug a little bit deeper. I created a web map only with this: ortofoto (MapServer) basemap (spatialReference 102067) (hope it's accessible from abroad in our country is open to everyone). In my widget i printed this.map to the console. SR of the whole map is correct 102067. There is an object graphics. It's empty but SR of this object is 4326. Is it alright? There is also an object graphicsLayerIds which contains the layer graphicsLayer1. In _layers.graphicsLayer1.spatialReference property of the map object is also SR 4326. And now I have two questions.

First: Are these values only default for default(empty) graphics and graphicsLayer1 objects and will change if anything is added to the map?

Second: Could these values cause the problem that created Feature Layer have the same SR?

Re: Feature Layer from Feature Collection applyEdits don't work

RobertScheitlin__GISP — Fri, 21 Apr 2017 13:18:33 GMT

I don't actually know the answer to those questions. What I think is that you are correct that an empty GL has a SR of 4326 and then when graphics are added of another SR the GL will take the graphics SR as its own.

Can you provide a couple of the raw results from your web service (response.response.resultitems) for me to test with?

Re: Feature Layer from Feature Collection applyEdits don't work

ZdeněkSoldán — Mon, 24 Apr 2017 06:09:33 GMT

Robert,

here is the response.

[0 … 99]
1. 0:Object
  1. age:"1131 days"
  2. fullname:"- (dříve Spěváček-převedeno do EAS) (1AX1686)"
  3. id:"cc_17074"
  4. locality:"Teplice, Zelená"
  5. name:"- (dříve Spěváček-převedeno do EAS)"
  6. position:Object
    1. proj:"JTSK"
    2. x:"976284.23"
    3. y:"776323.99"
    4. __proto__:Object
  7. topgroup:"CarControl"
  8. __proto__:Object
2. 1:Object
  1. age:"59 min."
  2. fullname:"Bakaj Petr (3AX8551)"
  3. id:"cc_27788"
  4. locality:"Troubsko, U Lednice"
  5. name:"Bakaj Petr"
  6. position:Object
    1. proj:"JTSK"
    2. x:"1162677.97"
    3. y:"605975.26"
    4. __proto__:Object
  7. topgroup:"CarControl"
  8. __proto__:Object
3. 2:Object