I'm trying to find the definitive way of validating whether a Safecracker File custom field has been filled in or not. The server side method using the Codeigniter validation class only semi works for me, and I'd much rather get client side validation working first anyway.
Has anyone found a reliable way of doing this? Ideally it'd be a validation library like parsley.js, but I can see that to use that you need to add data-validate="parsley" to the form element - something that isn't possible using Safecracker.
Any help much appreciated.