ServiceNow storing and calling upon glide scripts - html

Question

I am creating a front end portal in ServiceNow that requires using g:evaluate to call on variables from different tables.
For example:
<g:evaluate var="jvar_user_name">
var gr = new GlideRecord('sys_user');
gr.get('sys_id', gs.getUserID());
gr.first_name;
</g:evaluate>
Is there a way to store a bunch of these somewhere and then call upon them as needed, much like UI Scripts for JS and Style Sheets for CSS? If so, how would I go about doing this?
Thanks!

Answer 1

Yes you should be able to do this by using UI Macros.
You could create a UI Macro called set_user_name_var like below:
<?xml version="1.0" encoding="utf-8"?>
<j:jelly trim="false" xmlns:j="jelly:core" xmlns:g="glide" xmlns:j2="null" xmlns:g2="null">
<g:evaluate var="jvar_user_name">
var gr = new GlideRecord('sys_user');
gr.get('sys_id', gs.getUserID());
gr.first_name;
</g:evaluate>
</j:jelly>
And then invoke the UI Macro any place where you can write jelly code, like so:
<g:set_user_name_var />
or alternatively:
<g:macro_invoke macro="set_user_name_var" />
And from that point on, the jvar_user_name jelly variable will exist and be able to be accessed.
For example:
<?xml version="1.0" encoding="utf-8"?>
<j:jelly trim="false" xmlns:j="jelly:core" xmlns:g="glide" xmlns:j2="null" xmlns:g2="null">
<g:set_user_name_var />
${jvar_user_name}
</j:jelly>