What are the best practices for managing promises effectively?

Question

What are the best practices for managing promises effectively?

Currently, in my Angular application, I am utilizing $odataresource for handling data retrieval and updates.

The code snippet I am working with is as follows:

var measure = $odataresource("http://windows-10:8888/ChangeMeasure/");

var myMeasure = measure.odata().filter("ID",$scope.ngData[index].ID)
.single();

Now, I am trying to perform an update on myMeasure using the following code:

myMeasure.$update();

The issue I am facing is that after executing $update, myMeasure remains an unresolved promise.

Could you please provide guidance on how to correctly call myMeasure.$update(); once the promise for myMeasure has been resolved?

javascript angularjs promise

Answer 1

Answer №1

After reading through the ODataAngularResources documentation, here is a suggested approach:

  var resource = $odataresource("http://windows-10:8888/ChangeResource/");
  var myResource = resource.odata().filter("ID",$scope.ngData[index].ID)
                  .query(function(data){
                    data[0].$update(); 
                    console.log("Success: Resource updated!")
                   },function(){
                    console.log("Error: Something went wrong!")
                   });

It may be worth considering the best timing for triggering the resource update after retrieval.

Answer 2

After reading through the ODataAngularResources documentation, here is a suggested approach:

  var resource = $odataresource("http://windows-10:8888/ChangeResource/");
  var myResource = resource.odata().filter("ID",$scope.ngData[index].ID)
                  .query(function(data){
                    data[0].$update(); 
                    console.log("Success: Resource updated!")
                   },function(){
                    console.log("Error: Something went wrong!")
                   });

It may be worth considering the best timing for triggering the resource update after retrieval.

What are the best practices for managing promises effectively?

Answer №1

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