Set ci to in maintenance on change start

Server-Side Components/Business Rules/Set CI to In Maintenance on Change start/README.md

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+Set CI to In Maintenance on Change start 
+
+1. Write a Business Rule - After Update
+2. Select the Change Request Table
+3. Add a Condition that Change state = "Implement"
+4. task_ci is the relationship table that links tasks to configuration items (ci_item)
+5. Finds all relationship records where the task field equals this Change Request
+6. Retrieve the CI whose sys_id is stored in ciRel.ci_item, It returns true if found.
+7. Set the CI’s install_status to In Maintenance.

Server-Side Components/Business Rules/Set CI to In Maintenance on Change start/Script.js

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+(function executeRule(current, previous) {
+    if (previous.state != current.state && current.state == 'implement') {
+        var ciRel = new GlideRecord('task_ci');
+        ciRel.addQuery('task', current.sys_id);
+        ciRel.query();
+        while (ciRel.next()) {
+            var ci = new GlideRecord('cmdb_ci');
+            if (ci.get(ciRel.ci_item)) {
+                ci.install_status = 4; // In Maintenance
+                ci.update();
+                gs.info('CI ' + ci.name + ' moved to In Maintenance.');
+            }
+        }
+    }
+})(current, previous);