I have a lot of objects with identical fields and I need to check that the people who filled the objects with data did not fill the title and id fields with the same values (these fields should be permanently only with unique values)
The structure of object:
ASASFAS: # id must be unique
title: 'Name of object' # title must be unique
description: 'description'
event: 'new_event'
I don't understand how to implement this using json schema and sonata. I'm new to this.