after adding new field to existing model in models.py , error shown for django.db.utils.OperationalError: no such column: new_field.
after adding second model in models.py, run successfully in localhost but crashed when running heroku run python manage.py migrate for heroku, error: django.db.utils.programmingerrors: relation new model does not exist.
how to extract and perform calculation of value extract from floatfield in a django model, said nonetype and decimal.Decimal not for calculation like x += 1.
got a field with auto now, use strftime on extracted value of the datatimefield works, but when it goes to heroku, it said nonetype does not have strftime
thx pls hellp help