How to return some value from $scope.$on to $scope.$emit

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Javascript

AngularJs

The commented part will lie under $scope.$on. I need to return options to the place where I have kept $scope.$emit. Please HELP!!!

Even if there is any other way to do this then let me know. Also this code is under angular custom directive which is being used in many places so I can't keep the commented code there. It has to be passed from somewhere outside.

What I have tried:

if (gridConfig.Batch) {
                gridOption.dataSource.transport["parameterMap"] = function (options, operation) {
                    var data = {
                        options: options,
                        operation: operation
                    };
                    $scope.$emit('parameterMap', data);
                    //if (operation !== "read" && options.models) {
                    //    angular.forEach(options.models, function (value) {
                    //        value.MfgDt = kendo.toString(value.MfgDt, "s");
                    //        value.ExpDt = kendo.toString(value.ExpDt, "s");
                    //        value.ProductType = value.ProductType.Id;
                    //    })
                    //    return options;
                    //}
                }
            }