used promises with Appcelerator Titanium @see http://documentup.com/kriskowal/q/

snippet.js

var Kinvey = Alloy.Globals.Kinvey;
var Q = require("q");

function handleButtonClicked(_event) {

    var alert_data = null;

    // if saved, then set properties
    if (_event.source.id === "saveButton") {
        alert_data = {
            content : $.content.value,
            title : $.title.value,
            location_id : $.location_id,
            photo_id : $.photo_id,
        };

        // alert save location
        Q.fcall(function() {
            console.log("save the location");
            if ($.location) {
                return deferredSave(_params, "Location").then(function(_resp) {
                    $.location = $.location || {};
                    $.location.entity = _resp.model;
                });
            }
        }).then(function() {
            console.log("save the photo");
            if ($.photo) {
                return deferredSave(_params, "Photo").then(function(_resp) {
                    $.photo = $.photo || {};
                    $.photo.entity = _resp.model;
                });
            }
        }).then(function() {
            console.log("save the alert include the location and photo object if exists");
            return deferredSave(alert_data, "Alert").then(function(_resp) {
                $.alert = $.alert || {};
                $.alert.entity = _resp.model;
            });

        }).then(function() {
            // all is well, so just close the window and be happy!!
            setTimeout(function() {
                $.mainWindow.close();
            }, 200);
        }, function error(e) {
            // Any error that occurred in the previous execution
            // scope will fall down to here for us to manage
            alert(e);
            
            // all is NOT well, but need to close window anyway
            setTimeout(function() {
                $.mainWindow.close();
            }, 200);
        });
    } else {
        $.mainWindow.close();
    }
}

/**
 * here we have modified the save method to work with promises so we can
 * chain the asynchrous calls together in a more manageable process
 */
function deferredSave(_params, _object_type) {
    var deferred = Q.defer();

    var _object = new Kinvey.Entity(_params, _object_type);

    _object.save({
        success : function(_model) {
            // location is the saved entity.
            debugger;
            deferred.resolve({
                success : true,
                model : _model
            });
        },
        error : function(error) {
            // Failed to save location.
            // e holds information about the nature of the error.
            debugger;
            deferred.reject({
                success : true,
                model : null,
                errorCode : error.code,
                errorMsg : error.message
            });
        }
    });

    return deferred.promise;
}