g_form is used very heavily all over in ServiceNow. Though, it has a lot of documented and undocumented functions/methods. One of the undocumented GlideForm Method is "g_form.resolveNameMap"

#g_form.resolveNameMap:

1. Returns array of object

2. The Object contains the information about the variable like label, Name of the variable, sys_id of the question available for a variable

3. ServiceNow may change their Element ID naming convention in the future and this does not work on Service Portal/Mobile.

4. The resolveNameMap function compares the name of a variable against g_form's nameMap property.

5*. nameMap* have following information available about the catalog item's variables:

[

{

"prettyName": "requested_by",

"realName": "IO:58f54f302f8a4010dabd59a72799b63f",

"label": "Requested By",

"questionID": "58f54f302f8a4010dabd59a72799b63f"

},

]

Here, In above example:

prettyName: is a variable name. ‘requested_by’ is a variable name.

realName : is sys_id of variable response record in the sc_item_option table. IO:58f54f302f8a4010dabd59a72799b63f is the sys_id of the variable.

label: is a display name or the question of the variable. "Requested By" is the label

questionID: is sys_id of variable / Question.

Example: Let’s say, have below variables on catalog item form.

So, using above mentioned methods we can fetch out the details as below

[ {

"prettyName": "requested_by",

"realName": "IO:58f54f302f8a4010dabd59a72799b63f",

"label": "Requested By",

"questionID": "58f54f302f8a4010dabd59a72799b63f"

},

{

"prettyName": "first_name",

"realName": "IO:39ee3eb21b633300364d32a3cc4bcbe8",

"label": "First Name",

"questionID": "39ee3eb21b633300364d32a3cc4bcbe8"

},

{

"prettyName": "last_name",

"realName": "IO:fd0fbeb21b633300364d32a3cc4bcb8c",

"label": "Last Name",

"questionID": "fd0fbeb21b633300364d32a3cc4bcb8c"

},

{

"prettyName": "email",

"realName": "IO:bf2f32f21b633300364d32a3cc4bcbd6",

"label": "Email",

"questionID": "bf2f32f21b633300364d32a3cc4bcbd6"

},

{

"prettyName": "reporting_manager",

"realName": "IO:49600ff21b633300364d32a3cc4bcbb7",

"label": "Reporting Manager",

"questionID": "49600ff21b633300364d32a3cc4bcbb7"

},

{

"prettyName": "user_role",

"realName": "IO:8f5e6b421b800010364d32a3cc4bcbf2",

"label": "User Role",

"questionID": "8f5e6b421b800010364d32a3cc4bcbf2"

}]

Here Is the client script code to pull the above contents

var x = 0;

var val = '';

var str = JSON.stringify(g_form.nameMap);

g_form.addInfoMessage('The object ' + str);

for (x = 0; x < g_form.nameMap.length; x++) {

// alert(g_form.nameMap[x].toString());

var prettyName = g_form.nameMap[x].prettyName;

var realName = g_form.nameMap[x].realName;

var label = g_form.nameMap[x].label;

var questionID = g_form.nameMap[x].questionID;

g_form.addInfoMessage('prettyName:'+prettyName+": realName :"+realName+": label : "+label+": questionID :"+questionID);

}

Example Use Case :

Most ServiceNow developers will run an AJAX server-side call to the database to fetch a Display Value of a Reference field. But using this method we can get the display value of Reference variable in the Service Catalog.

var varDisp = g_form.getDisplayBox(g_form.resolveNameMap(“variable_name”)).value;

alert(varDisp);

There are some undocumented methods available such as

g_form.mandatoryCheck()

g_form.getMissingFields()

g_form.getEditableFields()

g_form.getDisplayBox(‘field_name’).value

You will find information about these about these methods on below link -

Useful GlideForm Client-side API Methods

Hope you will find it helpful as well. Don’t forget to Mark it Helpful and Bookmark.Thanks,

Abhishek Gardade