Hello. I am creating an author dashboard for a client who is creating a co-authored book series. The dashboard includes all the author info and a section for tasks to complete (ie. upload their chapter, upload their headshot). I would like to use a checkbox field next the task for a quick status. If the task is completed then the field would be true and the checkbox checked, if not the field would be false and the checkbox unchecked. The fields in question are not Boolean but are text, or image, or document fields.
My question is, how do I set the checkbox to TRUE, and therefore checked, if the corresponding field is not NULL?
Thanks in advance!