nuBuilder Forum

How/where do you record that a field's value is changed?

This is the question I wanted to ask you. Let me explain...
Let's say I have a directory of devices that have 10 characteristics each. I'm making a form in which I can change some of the characteristics. According to my knowledge, I would have to create a form with 10 old features and 10 new features in order to compare the fields. But this form will not fit on the screen. Therefore, I want to avoid creating 10 additional fields, and just mark the changed fields with a different color. It is enough for me to see that these fields have changed according to the date (only one additional field).

I am aware that this sounds a bit abstract but you could record the changes in a JSON structure.
When saving, it checks whether a field content has changed and if so, the corresponding field (with date) is logged. The JSON in turn is written to a single, additional field. This of course requires knowledge of JSON

Could you solve this?