topic Re: How to update hosted feature layer on ArcGIS Online with JavaScript? in ArcGIS JavaScript Maps SDK Questions

How to update hosted feature layer on ArcGIS Online with JavaScript?

FrancisPolignano1 — Thu, 10 Jan 2019 19:46:04 GMT

I'm trying to update values on a feature layer that is hosted on ArcGIS online. When I run the below code, nothing is updated but I do notice that the date modified changes to reflect the last time I run the code. Any ideas? I feel like it might have to do with settings/permissions on the hosted layer? I made sure editing was allowed and tried making it publicly shared as well. Any help is appreciated. Thanks

const layer = new FeatureLayer({

url: "https://services2.arcgis.com/QPchHr/arcgis/rest/services/worliew/FeatureServer"

});

const query = new Query();

query.where = "ISO = 'VA'";

query.outSpatialReference = {

wkid: 102100

};

query.returnGeometry = true;

query.outFields = ["haveData", "ISO",];

layer.queryFeatures(query).then(function (results) {

console.log('before update');

console.log(results.features[0].attributes.haveData);

// update the appropriate value

results.features[0].attributes.haveData = 22.0;

console.log('after update'); // this checks out, displays what I want

console.log(results.features[0].attributes.haveData);

console.log(results.features[0]) // this also displays the new value that I want

let edits = {

updateFeatures: [results.features[0]]

};

layer.applyEdits(edits).then(function (editsResult) {

})

.catch(function (error) {

console.error("[ applyEdits ] FAILURE: ", error.code, error.name,

error.message);

});

Re: How to update hosted feature layer on ArcGIS Online with JavaScript?

RobertScheitlin__GISP — Thu, 10 Jan 2019 19:54:09 GMT

Francis,

A FeatureLayer has to point to a specific layer in a service your url does not have the layer id in the url. that is an issue.
Values of non nullable fields must be provided when updating features. I am not sure if this is an issue in your scenario or not.

Re: How to update hosted feature layer on ArcGIS Online with JavaScript?

FrancisPolignano1 — Thu, 10 Jan 2019 20:18:18 GMT

Thanks Robert,

I've sort of obscured the URL just for privacy reasons. I am able to query, select and view all the data I need in the correct feature layer so I'm thinking that is not an issue unless I'm misunderstanding what you're saying a little bit. I'm not sure how to get a different link for my FeatureLayer I'm using the one listed on ArcGIS online.

In my scenario there are no null values and I'm only trying to change an already populated value to something else.

Thanks again for the help

Re: How to update hosted feature layer on ArcGIS Online with JavaScript?

RobertScheitlin__GISP — Thu, 10 Jan 2019 20:25:01 GMT

Francis,

Is there more than one layer in this feature service?

Re: How to update hosted feature layer on ArcGIS Online with JavaScript?

FrancisPolignano1 — Thu, 10 Jan 2019 20:33:20 GMT

Robert,

I figured it out. I had to change

query.outFields = ["haveData", "ISO",];

query.outFields = ["*",];

I guess that makes sense, as what I was feeding the applyEdits() didn't exactly match what I was trying to update.