here i need to update a record in incident with help of widgets .

[peyyalabhar]

with help help of widget , i wrote a server script and client contoller. but im getting output as a incident created again newly with having any short desc. so i will provide a scripts for both server script and controller 

server script:-

if (action == 'update') {

         var incident = new GlideRecord("incident");

         incident.addQuery('number', input.incident.number);

         incident.query();

         while (incident.next()) {

             if (input.incident.number == incident.number) {

//      input.number="updateIncident"

                 incident.short_description =input.shortDescription;

                 incident.update();

                 response.short_description = incident.update();

                 response.success = !!response.short_description;

                 response.message = response.success ? 'Incident created successfully' : 'failed to create incident';

             }

         }

         gs.log("print : " + incident.update());

============================================

client controller:-

$scope.updateIncident = function(){

    var inciUp={

        // back-end name : $scope.ng-model Name.

        short_description:$scope.short_description,

    };

    $scope.server.get({

        action: 'update',

        short_description:inciUp

    }).then(function(response){

        $scope.message = response.message;

        if(response.success){

            // given value of a priority = updated value of a priority.

            $scope.short_description= response.short_description;

        }

    });

};

input:- when we pass a incident number then it verifies that record and then update the short desc

my output: but im getting as a creating record newly 

so please try to help me