Is there a way to catch a query error?

edited November 2, 2017 in Questions
In some predictable cases, a query will fail and user friendly messages could be given to the user to correct their mistake. Is there a way to catch this error in JavaScript like the 'add-on error' action in the action framework? When doing a try catch in JavaScript snippets, the error doesn't get caught, and the jQuery promise is resolved.

I also tried subscribing to 'models.load' events but the event only fired on success of updateData()  and it seems to consider an updateData() call a success even when the query error message pops up
at the end of a successful call to model.updateData()


  • edited November 2, 2017
    Thanks for your question!  Have you tried a callback function within the updateData call?
    model.updateData(function(result) {
         if (result.totalsuccess) {
              // Do something on success
         else {
              // Do something on failure 
    Hope this helps you out!

  • edited December 12, 2016
    Thanks, I hadn't tried it. I just tried it and although I'm setting the failure to do nothing, I still get the error in the screenshot below. Here's the relevant code .
            dfrd = attachmentsMod.updateData(function(result) {            
                if (!result.totalsuccess) {
                // Do nothing on fail
    I'm returning this deferred Jquery object later on.

    Here's a screenshot of the error.

  • edited November 2, 2017
    I ended up passing this to apex, handling it there, and working off of the returned result.
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