def validate(self, data):
"""Validate this activity - check end date is after start date, etc."""
# Check that start_date is before end_date
if (
"end_date" in data
and data["end_date"]
and data["start_date"] > data["end_date"]
):
raise serializers.ValidationError(
_("Startdato skal være før eller identisk med slutdato")
)
# One time payments should have a payment date in the payment plan.
is_one_time_payment = (
data["payment_plan"]["payment_type"]
== PaymentSchedule.ONE_TIME_PAYMENT
)
if "start_date" not in data and not is_one_time_payment:
raise serializers.ValidationError(
_("der skal angives en startdato for ydelsen")
)
if is_one_time_payment and (
"payment_date" not in data["payment_plan"]
or data["payment_plan"]["payment_date"] is None
):
raise serializers.ValidationError(
_("der skal angives en betalingsdato for engangsbetaling")
)
# Monthly payments that are not expected adjustments should have a
# valid start_date, end_date and day_of_month that results in payments.
modifies = "modifies" in data and data["modifies"]
is_monthly_payment = (
"payment_frequency" in data["payment_plan"]
and data["payment_plan"]["payment_frequency"]
== PaymentSchedule.MONTHLY
)
if (
is_monthly_payment
and ("end_date" in data and data["end_date"])
and not modifies
):
start_date = data["start_date"]
end_date = data["end_date"]
payment_day_of_month = data["payment_plan"]["payment_day_of_month"]
next_payment_date = start_date.replace(day=payment_day_of_month)
if next_payment_date < start_date:
next_payment_date += relativedelta(months=+1)
if not (start_date <= next_payment_date <= end_date):
raise serializers.ValidationError(
_("Betalingsparametre resulterer ikke i nogen betalinger")
)
# Cash payments that are not fictive should have a "valid" start_date
# based on payment date exclusions.
data_copy = data.copy()
if (
"price_per_unit" in data_copy["payment_plan"]
and data_copy["payment_plan"]["price_per_unit"]
):
data_copy["payment_plan"]["price_per_unit"] = PriceSerializer(
data=data_copy["payment_plan"]["price_per_unit"]
).instance
data_copy["payment_plan"] = PaymentSchedule(
**data_copy.pop("payment_plan")
)
# Pop the service provider and attach a serialized version.
if "service_provider" in data_copy and data_copy["service_provider"]:
data_copy["service_provider"] = ServiceProvider(
**data_copy.pop("service_provider")
)
instance = Activity(**data_copy)
is_valid_start_date = instance.is_valid_activity_start_date()
if not is_valid_start_date:
raise serializers.ValidationError(
_(
"Startdato skal være i fremtiden og "
"der skal være mindst to udbetalingsdage"
" fra nu og til startdatoen"
)
)
if modifies:
# run the validate_expected flow.
try:
instance.validate_expected()
except forms.ValidationError as e:
raise serializers.ValidationError(e.message)
return data
