如何使用mysql在django中根据整数字段向日期添加x个月

from django.db import connection

def add_months_to_birthdate(person_id, months):
    with connection.cursor() as cursor:
        cursor.execute("""
            UPDATE myapp_person
            SET birthdate = DATE_ADD(birthdate, INTERVAL %s MONTH)
            WHERE id = %s
        """, [months, person_id])

from django.db.models import Func, Value
from myapp.models import Person

def add_months_to_birthdate(person_id, months):
    person = Person.objects.get(id=person_id)
    person.birthdate = Func(F('birthdate'), Value(months), function='DATE_ADD', template="%(function)s(%(expressions)s, INTERVAL %(value)s MONTH)")
    person.save()