topic applyEdits for updating data (JS4.4) in ArcGIS JavaScript Maps SDK Questions

applyEdits for updating data (JS4.4)

Anonymous User — Sat, 11 Dec 2021 15:35:06 GMT

I am having a problem updating a feature layer data using applyEdits function. I looked at the sample code in applyEdits API reference and Sandbox sample code, but I haven't been able to figure it out how to update the data. I am only interested in updating existing data attributes. I would very much appreciate your help.

require([
  "esri/Map",
  "esri/views/SceneView",
  "esri/layers/FeatureLayer",
  "esri/geometry/Extent",
  'esri/geometry/ScreenPoint',
  'dojo/_base/lang',
  "dojo/on",
  "dojo/dom",
  "dojo/domReady!"
],
  function (
    Map, SceneView, FeatureLayer, Extent, ScreenPoint, lang, on, dom
  ) {
    var lyrUrl = 'https://services1.arcgis.com/aT1T0pU1ZdpuDk1t/arcgis/rest/services/CALO_survey_web/FeatureServer/0';

    var map = new Map({
      basemap: 'satellite'
    });

    var initialExtent = new Extent({
      xmin: -8520399.50094139,
      xmax: -8466523.75224205,
      ymin: 4109431.55147233,
      ymax: 4173688.01969221,
      spatialReference: 102100
    });

    var featureLyr = new FeatureLayer({
      url: lyrUrl
    });
    map.add(featureLyr);

    var sceneView = new SceneView({
      container: 'map',
      map: map,
      extent: initialExtent
    });

    var _onclick = function (evt) {
      var s = new ScreenPoint({
        x: evt.x,
        y: evt.y
      });

    // Updating feature layer data  
    sceneView.hitTest(s).then(picked => {
      console.log(picked);
      if (picked.results[0].graphic) {
        var editFeature = picked.results[0].graphic;
        editFeature.attributes.YearBuilt = '2000';
        console.log('after edit', editFeature);
        var edit = {
          updateFeatures: [editFeature]
        };
        var promise = featureLyr.applyEdits(edit);
        console.log(promise);
      }
    });
  }
  sceneView.on('click', _onclick);‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: applyEdits for updating data (JS4.4)

ThomasSolow — Sat, 11 Dec 2021 15:35:09 GMT

Your code looks fine to me. Try adding "outFields: ["*"]" to the FeatureLayer constructor:

var flayer = new FeatureLayer({
  url: <url>,
  outFields: ["*"]
});‍‍‍‍

The documentation for applyEdits mentions:

Values of non nullable fields must be provided when updating features.

Also, make sure YearBuilt expects a string. It may expect a number. I'm unsure how the service will handle a string when it expects a number, it may be able to coerce it, or it may just not work.

Re: applyEdits for updating data (JS4.4)

Anonymous User — Mon, 11 Sep 2017 16:04:02 GMT

Hi Thomas,

Thank you so much for your reply. I added outFields: ["*"] to my featureLyr object and checked my data has any non nullable fields and type of YearBuilt field. I don't have any non nullable fields in my data (all are nullable: true) and YearBuilt type is 'string'. It doesn't update the data. I must be doing something wrong. Would you be able to point out what else I can check?

Re: applyEdits for updating data (JS4.4)

ThomasSolow — Mon, 11 Sep 2017 16:12:56 GMT

I think the next thing to check would be the actual request that's being sent, which you can look at in dev tools.

Try opening up your browser's dev tools, switch to the networking tab, and click the feature to send the applyEdits request. A new request should pop up in dev tools, take a look at that, and then take a look at the response when the server gets around to responding. This should give you some hints about what's going wrong.

You can copy the request/response information here if you like and we can help you go over it.

Re: applyEdits for updating data (JS4.4)

Anonymous User — Sat, 11 Dec 2021 15:35:12 GMT

Hi Thomas,

I found an error

So I changed to "editFeature.attributes" then I got another error below. Do I have to create a new Graphic object for the update? If so, how?

// before
var edit = {
          updateFeatures: [editFeature]
        };

// after      
var edit = {
          updateFeatures: [editFeature.attributes]
        };‍‍‍‍‍‍‍‍‍

Re: applyEdits for updating data (JS4.4)

ThomasSolow — Sat, 11 Dec 2021 15:35:14 GMT

Hmm, interesting. I would try this and see what happens:

var clonedFeature = editFeature.clone();
delete clonedFeature.geometry; 
var edit = {
  updateFeatures: [clonedFeature]
};‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The first error suggests to me that you can't edit the geometry on the graphic in question. Whether this is a limitation of applyEdits or a setting on your feature service, I'm not sure. That sample will clone the graphic in question and delete the geometry property.

Re: applyEdits for updating data (JS4.4)

Anonymous User — Sat, 11 Dec 2021 15:35:17 GMT

Hi Thomas,

Thank you so much for your help!! I made it work. The code "delete clonedFeature.geometry;" didn't work so I created a new Graphic object and assigned "attributes". It worked, but this is the way to update the data? I think it would be very helpful if this information is added to API reference.

var graphic = new Graphic();
graphic.attributes = editFeature.attributes;
var edit = {
   updateFeatures: [graphic]
};‍‍‍‍‍‍‍‍‍‍

Again, thank you so much!!

Re: applyEdits for updating data (JS4.4)

RobertScheitlin__GISP — Mon, 11 Sep 2017 17:38:57 GMT

Makiko,

I think you are running into this because of your feature service setting not allowing geometry updates. If you change that option on your feature service you would not have this issue.

Re: applyEdits for updating data (JS4.4)

Anonymous User — Mon, 11 Sep 2017 17:56:03 GMT

Hi Robert,

Thank you for the information. Where can I change the setting?

My layer supported operations are:

ArcGIS Online "Editing" setting is:

Where can I change geometry updates option?

Re: applyEdits for updating data (JS4.4)

RobertScheitlin__GISP — Mon, 11 Sep 2017 17:57:45 GMT

Makiko,

The first option will allow geometry and attribute updates the second option (that you have selected) only allows attribute updates.

Re: applyEdits for updating data (JS4.4)

Anonymous User — Mon, 11 Sep 2017 18:03:34 GMT

Robert,

Thank you! It is very important to know about the editing settings!!

Re: applyEdits for updating data (JS4.4)

KenBuja — Mon, 11 Sep 2017 18:12:13 GMT

That would be a change from 3.x. I have a hosted feature service that only allows for attribute updates, but I am able to use applyEdits using the selected features from the feature layer without stripping the features of their geometry.

Re: applyEdits for updating data (JS4.4)

RobertScheitlin__GISP — Mon, 11 Sep 2017 18:28:11 GMT

Ken,

I agree it is a change from 3.x. But not real surprising though.