javascript API 4.6 - IdentifyTask - get attributes names instead of attributes alias in result

MaximeDemers

I wonder if it's possible to parameter the IdentifyTask in order that the result features attributes would be using the fields names instead of the fields alias.

This is because fields names are less likely to be changed than alias over the course of time.

Also, I dont how the API would handle fields that have the same alias. That could happen...

Thank you!

marko_antoniopachas_tavara

Hi Maxime Demers, I have the same problem with mi Identify Tool and I solved it doing this:

(Has API JavaScript 3.12, and works with AGS 10.5, you have to keep in mid that in previous versión of AGS, can't call original name of attributes)

I'll put some aditional lines, on IdentifyParams, do that:

var identifyParams = new esri.tasks.IdentifyParameters();
identifyParams.tolerance = this._tolerance;
identifyParams.height = this.map.height;
identifyParams.width = this.map.width;
identifyParams.returnGeometry = true;
identifyParams.returnFieldName = true;

And this is the API JS with added text in bold from API Javascript called IdentifyParameters.js located in your API location.

// All material copyright ESRI, All Rights Reserved, unless otherwise specified.
// See http://js.arcgis.com/3.12/esri/copyright.txt for details.
//>>built
define("esri/tasks/IdentifyParameters", "dojo/_base/declare dojo/_base/lang dojo/_base/array dojo/_base/json dojo/has ../kernel ../layerUtils ../geometry/jsonUtils ../geometry/scaleUtils".split(" "), function (g, e, h, f, n, p, k, q, r) {
var d = g(null, {
declaredClass: "esri.tasks.IdentifyParameters",
constructor: function () {
this.layerOption = d.LAYER_OPTION_TOP
},
geometry: null,
spatialReference: null,
layerIds: null,
tolerance: null,
returnGeometry: !1,
returnFieldName: !1,
mapExtent: null,
width: 400,
height: 400,
dpi: 96,
layerDefinitions: null,
timeExtent: null,
layerTimeOptions: null,
dynamicLayerInfos: null,
toJson: function (b) {
var c = b && b.geometry || this.geometry,
a = this.mapExtent,
d = this.spatialReference,
e = this.layerIds;
b = {
tolerance: this.tolerance,
returnGeometry: this.returnGeometry,
returnFieldName:this.returnFieldName,
imageDisplay: this.width + "," + this.height + "," + this.dpi,
maxAllowableOffset: this.maxAllowableOffset
};
if (c) {
var l = c.toJson();
delete l.spatialReference;
b.geometry = f.toJson(l);
b.geometryType = q.getJsonType(c)
}
d ? b.sr = d.wkid || f.toJson(d.toJson()) : c && c.spatialReference ? b.sr = c.spatialReference.wkid ||
f.toJson(c.spatialReference.toJson()) : a && a.spatialReference && (b.sr = a.spatialReference.wkid || f.toJson(a.spatialReference.toJson()));
a && (b.mapExtent = a.xmin + "," + a.ymin + "," + a.xmax + "," + a.ymax);
b.layers = this.layerOption;
e && (b.layers += ":" + e.join(","));
b.layerDefs = k._serializeLayerDefinitions(this.layerDefinitions);
c = this.timeExtent;
b.time = c ? c.toJson().join(",") : null;
b.layerTimeOptions = k._serializeTimeOptions(this.layerTimeOptions);
if (this.dynamicLayerInfos && 0 < this.dynamicLayerInfos.length) {
var a = r.getScale({
extent: a,
width: this.width,
spatialReference: a.spatialReference
}),
g = k._getLayersForScale(a, this.dynamicLayerInfos),
m = [];
h.forEach(this.dynamicLayerInfos, function (b) {
if (!b.subLayerIds) {
var a = b.id;
if ((!this.layerIds || this.layerIds && -1 !== h.indexOf(this.layerIds, a)) && -1 !== h.indexOf(g, a)) {
var c = {
id: a
};
c.source = b.source && b.source.toJson();
var d;
this.layerDefinitions && this.layerDefinitions && (d = this.layerDefinitions);
d && (c.definitionExpression = d);
var e;
this.layerTimeOptions && this.layerTimeOptions && (e = this.layerTimeOptions);
e && (c.layerTimeOptions = e.toJson());
m.push(c)
}
}
}, this);
a = f.toJson(m);
"[]" === a && (a = "[{}]");
b.dynamicLayers = a
}
return b
}
});
e.mixin(d, {
LAYER_OPTION_TOP: "top",
LAYER_OPTION_VISIBLE: "visible",
LAYER_OPTION_ALL: "all"
});
n("extend-esri") && e.setObject("tasks.IdentifyParameters", d, p);
return d
});

Hope it helps 2u, my english is a little bad .

On the other hand, you can look at the link below to see oficial documentatión.

IdentifyParameters | API Reference | ArcGIS API for JavaScript 3.25