How to use a field that is a Foreign Key for another entity in Django.forms?

Question

Django

He swears at the doctor_id field, saying that you can’t just insert a number here, you need exactly "Doctor" instance

Question
How to collect an appointment (doctor's appointment) as a result?

Answer 1

1. names for ForeignKeys are usually given doctor, not doctor_id
2. models should use ModelForm, not Form