Add inserted_by(int), inserted_date (datetime), updated_by(int), updated_date(datetime) to all the tables in the database with user_id as foreign key to inserted_by and updated_by.
Change all the insert and update statements in all the models to store the user ID and the date, time in the database.
Add inserted_by(int), inserted_date (datetime), updated_by(int), updated_date(datetime) to all the tables in the database with user_id as foreign key to inserted_by and updated_by.
Change all the insert and update statements in all the models to store the user ID and the date, time in the database.