ServiceNow AJAX Client and Server

callAJAX.js

/*
Client Side
UI Action
Client = checked
Action name = your_choice
OnClick = onClickFormButton()
*/

function onClickFormButton() {
    g_form.clearMessages();
    if (g_form.modified) {//Test for a dirty cache
        g_form.addErrorMessage(getMessage("You must save before proceeding."));
        return false;
    }
    processExtras();

}

function processExtras() {

    var extra_process = g_form.getValue('u_post_processing_script');
    var ajax = new GlideAjax("CmVRAJAX"); //Script Include
    ajax.addParam("sysparm_name", "processExtras"); //Method 
    ajax.addParam("sysparm_assignment_rule_sys_id", g_form.getUniqueValue().toString()); //pass to script
    ajax.addParam("sysparm_extra_process", extra_process);
    ajax.getXML(parseResponse); //function in calling script
}

function parseResponse(response) {
    var answer = response.responseXML.documentElement.getAttribute("answer");
    if (answer) {
        g_form.addInfoMessage(answer);
    }
}

/*
Server Side
Script Include
Client callable = checked
Accessible from = All application scopes
*/

var CmVRAJAX = Class.create();
CmVRAJAX.prototype = Object.extendsObject(global.AbstractAjaxProcessor, {

    processExtras: function() {
        var extras = this.getParameter("sysparm_extra_process"); //FROM CLIENT
        var ar_sys = this.getParameter("sysparm_assignment_rule_sys_id");
		if(extras == 'add ports'){
			//gs.addInfoMessage("adding Ports!");
			this._addPortsToCondition();
			return "Adding Ports"; //TO CLIENT
		}else{
			//gs.addInfoMessage("No Extras to process...");
			return "Nothing to process";//TO CLIENT
		}
    },
    _addPortsToCondition: function() {//Private Function
        var util = new sn_vul.VrArUtils();
        var ar_sys = this.getParameter("sysparm_assignment_rule_sys_id");
        util.addPortsToCondition(ar_sys);
        
    },

    type: 'CmVRAJAX'



});