Writing a log statement from a client script.

Sue Frost · ‎02-23-2016

I've added the Simultaneous Alert functionality written by ServiceNow Guru (Handling Simultaneous Updates in ServiceNow - ServiceNow Guru ) to my dev instance. With only minor changes, it works exactly as expected.

The request that has me stumped pertains to tracking how often this alert functionality is called.

I can't add a counter field to the record as that would trigger another update and likely cause a loop.

So adding a log statement that we can at least report on (in some fashion) sounds like the way to go. However, I can't find anything on writing to the system log from a client script. The "jslog" command writes to the JavaScript log, but that's only available while you're debugging. I need something I can check on a weekly basis to see how many records were simultaneously edited.

I'm pondering adding a new table simply for the purposes of tracking this data. My gut feeling though is that this will only be monitored for a short while and that a new table is probably tackling the issue with a sledgehammer.

Any suggestions are very much appreciated.

Daniel Draes · ‎02-23-2016

If you use the code provided by Mark (crossfuze / servicenowguru) there is no need for additional ajax calls.

The onsubmit function already has an AjaxCall to verify the timestamps:

         var ga = new GlideAjax('SimultaneousUpdateAlert');

           ga.addParam('sysparm_name', 'checkUpdate');

           ga.addParam('sysparm_tableName', tableName);

           ga.addParam('sysparm_sysID', sysID);

           ga.addParam('sysparm_user', g_user.userName);

           ga.addParam('sysparm_silent_request', 'true'); // don't log on the server

           ga.getXMLWait();

as is seems you only need to change sysparm_silent_request to false to make a log entry.

If not, check the Script Includes to find the one mentioned here and add your logging in there.

View solution in original post

Sue Frost · ‎02-25-2016

Thanks for this. It worked perfectly.

I changed the parameter in the Listener and Submit client scripts:

ga.addParam('sysparm_silent_request', 'false'); // log on the server

And updated the script include:

caseNumber = rec.number.getDisplayValue()

gs.log("Simulatenous Alert called - " + caseNumber, "SIMU ALERT");

Sue Frost · ‎02-25-2016

I really like this solution - it looks like it should be re-usable if you need logging from client scripts.

Thanks for the help!