django PostgreSQL Partitioning reference error - django

Question

We have two models. I'm implementing partitioning on the PaymentModel. It gives an error when I want to add to the BuyerModel table linked to this table;
insert or update on table "betik_app_payment_buyermodel" violates
foreign key constraint
"betik_app_payment_bu_payment_id_d7022880_fk_betik_app" DETAIL: Key
(payment_id)=(2) is not present in table
"betik_app_payment_paymentmodel".
models.py
#architect.install('partition', type='range', subtype='date', constraint='month', column='dt')
class PaymentModel(models.Model):
class Meta:
app_label = 'betik_app_payment'
indexes = [
models.Index(fields=['user_email'])
]
payment_status = models.PositiveIntegerField(default=1)
price = MoneyField(max_digits=20, decimal_places=2)
dt = models.DateTimeField()
user_email = models.EmailField(null=True, blank=True)
token = models.CharField(max_length=255, null=True, blank=True)
class BuyerModel(models.Model):
class Meta:
app_label = 'betik_app_payment'
indexes = [
models.Index(fields=['name', 'surname'])
]
payment = models.OneToOneField(to='betik_app_payment.PaymentModel', on_delete=models.CASCADE,related_name='buyer')
name = models.CharField(max_length=100)
surname = models.CharField(max_length=100)
email = models.EmailField(null=True, blank=True)
ip = models.GenericIPAddressField(null=True, blank=True)
main.py
from datetime import datetime
from djmoney.money import Money
buyer_name="Name"
buyer_surname="Surname"
buyer_email="developer#betik.com.tr"
buyer_ip="10.0.0.1"
price= Money("100.00","TRY")
payment_instance = PaymentModel.objects.create(
price=price,
dt=datetime.now(),
user_email=buyer_email
)
# raise error at here
buyer_instance = BuyerModel.objects.create(
payment=payment_instance,
name=buyer_name,
surname=buyer_surname,
email=buyer_email,
ip=buyer_ip
)
using library:
money
partition
I'm looking at the tables in the database with the pgadmin tool and the partition has been applied successfully.
data added in both tables. But BuyerModel table is empty
PaymentModel table has two triggers. These triggers are created automatically by the architect library. Maybe there is an error here?;
after_insert_betik_app_payment_paymentmodel_trigger.
-- FUNCTION: public.betik_app_payment_paymentmodel_delete_master()
-- DROP FUNCTION IF EXISTS public.betik_app_payment_paymentmodel_delete_master();
CREATE OR REPLACE FUNCTION public.betik_app_payment_paymentmodel_delete_master()
RETURNS trigger
LANGUAGE 'plpgsql'
COST 100
VOLATILE NOT LEAKPROOF
AS $BODY$
BEGIN
DELETE FROM ONLY "betik_app_payment_paymentmodel" WHERE id = NEW.id;
RETURN NEW;
END;
$BODY$;
ALTER FUNCTION public.betik_app_payment_paymentmodel_delete_master()
OWNER TO postgres_user;
before_insert_betik_app_payment_paymentmodel_trigger.
-- FUNCTION: public.betik_app_payment_paymentmodel_insert_child()
-- DROP FUNCTION IF EXISTS public.betik_app_payment_paymentmodel_insert_child();
CREATE OR REPLACE FUNCTION public.betik_app_payment_paymentmodel_insert_child()
RETURNS trigger
LANGUAGE 'plpgsql'
COST 100
VOLATILE NOT LEAKPROOF SECURITY DEFINER
AS $BODY$
DECLARE
match "betik_app_payment_paymentmodel"."dt"%TYPE;
tablename VARCHAR;
checks TEXT;
BEGIN
IF NEW."dt" IS NULL THEN
tablename := 'betik_app_payment_paymentmodel_null';
checks := '"dt" IS NULL';
ELSE
match := DATE_TRUNC('month', NEW."dt");
tablename := 'betik_app_payment_paymentmodel_' || TO_CHAR(NEW."dt", '"y"YYYY"m"MM');
checks := '"dt" >= ''' || match || ''' AND "dt" < ''' || (match + INTERVAL '1 month') || '''';
END IF;
BEGIN
EXECUTE 'CREATE TABLE IF NOT EXISTS ' || tablename || ' (
CHECK (' || checks || '),
LIKE "betik_app_payment_paymentmodel" INCLUDING DEFAULTS INCLUDING CONSTRAINTS INCLUDING INDEXES
) INHERITS ("betik_app_payment_paymentmodel");';
EXCEPTION WHEN duplicate_table THEN
-- pass
END;
EXECUTE 'INSERT INTO ' || tablename || ' VALUES (($1).*);' USING NEW;
RETURN NEW;
END;
$BODY$;
ALTER FUNCTION public.betik_app_payment_paymentmodel_insert_child()
OWNER TO postgres_user;