Adding Metrics to Scoped tables

[jacebenson]

post: https://community.servicenow.com/community?id=community_question&sys_id=966e14621b824814d01143f6fe4bcbd7

cross scope privledges

Target Name: MetricInstance

business rule

```js (function executeRule(current, previous /*null when async*/) {

// Add your code here
queueMetricUpdate();

function queueMetricUpdate() {
var gru = new GlideScriptRecordUtil.get(current);
var fieldsChanged = gru.getChangedFieldNames();
var gr = getDefinitions(fieldsChanged);
fields = '';
while (gr.next())
fields += gr.field + ',';

if (fields.length > 0) {
	fields = '[' + fields.substring(0, fields.length - 1) + ']';
	gs.eventQueue('metric.update', current, fields, current.sys_mod_count, 'metric_update');
}

}

function getDefinitions(fields) {
var gr = new GlideAggregate('metric_definition');
gr.addActiveQuery();
var tables = GlideDBObjectManager.getTables(current.getTableName());
gr.addQuery('table', tables);
gr.addQuery('field', fields);
gr.groupBy('field');
gr.query();
return gr;
}

})(current, previous);

</details>