Adding a row to a table using JS 4.x

[Mr_Kirkwood]

I was using JS 3.x to add and update data. I am working on convert my applications to JS 4.x.  I had a script that used "dojo/Deferred". Here is the code:

function _applyAdds (featureLayer, propertiesArr)
{
    var defer;
    require (['esri/graphic', "dojo/Deferred"], function (Graphic, Deferred)
    {
        defer = new Deferred ();
        var graphicsArr = [];
        propertiesArr.forEach (function (properties)
        {
            graphicsArr.push (new Graphic (null, null, properties));
        });
        featureLayer.applyEdits (
                graphicsArr, null, null,
                function (a, u, d)
                {
                    console.log (a, u, d);
                    defer.resolve ();
                }, // callback
                function (error)
                {
                    console.log ('ERROR!', error);
                }// errorback
        );
    });
    return defer.promise;
}

//begin adding new employee assignment
function assignEmployee ()
{
    var addEmployee = {};
    addEmployee.SPACEKEY = document.getElementById ('EmployeeSpaceID').value;
    addEmployee.EMPLOYEEKEY = document.getElementById ('EmployeeID').value;
    console.log (addEmployee);
    _applyAdds (roomAssinmentTable, [addEmployee]).then (function ()
    {
        console.log ("Add Employee");
    });
}

How do i make this work in JS 4.x? 

Thank you in advance for any help on this. 

[JoelBennett]

You should use the native Promise object instead.  Here is what the above code would look like using it:

function _applyAdds (featureLayer, propertiesArr)
{
    return new Promise(function(resolve, reject) {
        require (['esri/graphic'], function (Graphic)
        {
            var graphicsArr = [];
            propertiesArr.forEach (function (properties)
            {
                graphicsArr.push (new Graphic (null, null, properties));
            });
            featureLayer.applyEdits (
                    graphicsArr, null, null,
                    function (a, u, d)
                    {
                        console.log (a, u, d);
                        resolve();
                    }, // callback
                    function (error)
                    {
                        console.log ('ERROR!', error);
                        reject(error);
                    }// errorback
            );
        });
    });
}

[Mr_Kirkwood]

Thank you, Joel, for helping. I am now getting this error message:

4.30/:31 Error: scriptError: https://js.arcgis.com/4.30/esri/graphic.js

src: dojoLoader

info: (2) ['https://js.arcgis.com/4.30/esri/graphic.js', Event]

Thanks in advance! 

[JoelBennett · Accepted solution]

I thought you were asking specifically about the replacement for dojo's Deferred module.  To migrate the whole function, you'll also need to update the use of FeatureLayer and Graphic for compatibility with 4.x:

function _applyAdds (featureLayer, propertiesArr)
{
    return new Promise(function(resolve, reject) {
        require (['esri/Graphic'], function (Graphic)
        {
            var graphicsArr = [];
            propertiesArr.forEach (function (properties)
            {
                graphicsArr.push (new Graphic ({attributes:properties}));
            });
            featureLayer.applyEdits({addFeatures:graphicsArr}).then(
                    function (results)
                    {
                        console.log (results);
                        resolve();
                    }, // callback
                    function (error)
                    {
                        console.log ('ERROR!', error);
                        reject(error);
                    }// errorback
            );
        });
    });
}

[Mr_Kirkwood]

Thank you! That works. I really appreciate your help.  

[Mr_Kirkwood]

Joel,

If i want to delete or just edit do i change this line:

featureLayer.applyEdits({addFeatures:graphicsArr})

to deleteaFeatures and editFeatures?

[JoelBennett · Accepted solution]

To edit features, you would use:

featureLayer.applyEdits({updateFeatures:graphicsArr})

To delete features, you would use:

featureLayer.applyEdits({deleteFeatures:graphicsArr})

[Mr_Kirkwood]

That is what i thought. i had been trying it but was getting this error:

ERROR! e {name: 'request:server', details: {…}, message: 'Unable to complete operation.'}details: getAllHeaders: ()=>Array.from(Z.headers)getHeader: ra=>Z.headers.get(ra)httpStatus: 500messageCode: undefinedmessages: ["No edits ('adds', 'updates', 'deletes', 'attachment edits', or 'asset maps edits') were specified."]raw: {code: 500, message: 'Unable to complete operation.', details: Array(1)}requestOptions: {method: 'post', query: {…}, responseType: 'json'}ssl: truesubCode: undefinedurl: "https://uwoperations.uwyo.edu/hostgis/rest/services/REO/REV_UWOPS_EditRooms/FeatureServer/1/applyEdi..."[[Prototype]]: Objectmessage: "Unable to complete operation."name: "request:server"[[Prototype]]: ctype: "error"constructor: class etoJSON: toJSON(){if(null!=this.details)try{return{name:this.name, message:this.message,details:JSON.parse(JSON.stringify(this.details,(d,p)=> {…}[[Prototype]]: Object

[Mr_Kirkwood]

joel,

I got it to work. I was forgetting to grab the OBJECTID for the edit and delete. Thanks again!