44 lines
1.7 KiB
Python
44 lines
1.7 KiB
Python
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from decimal import Decimal
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from django.conf import settings
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from inventory import models
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def calculate_vat(value):
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"""Helper to calculate VAT dynamically for a given value."""
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vat_rate = getattr(settings, 'VAT_RATE', Decimal('0.15')) # Default VAT rate
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return (value * vat_rate).quantize(Decimal('0.01'))
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# def get_financial_value(instance,attribute,vat=False):
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# if vat:
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# return calculate_vat(getattr(instance, attribute, Decimal('0.00')) if instance else Decimal('0.00'))
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# return getattr(instance, attribute, Decimal('0.00')) if instance else Decimal('0.00')
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def get_financial_value(name,vat=False):
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val = models.AdditionalServices.objects.filter(name=name).first()
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if not val:
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return 0
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if vat:
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return (val.price * settings.VAT_RATE).quantize(Decimal('0.01'))
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return val.price
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def get_total_financials(instance,vat=False):
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total = 0
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if instance.additional_services.exists():
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total = sum(x.price for x in instance.additional_services.all()) + instance.selling_price
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if vat:
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total = (total * settings.VAT_RATE).quantize(Decimal('0.01')) + total
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# price_after_discount = get_financial_value(instance,"selling_price",vat) - get_financial_value(instance,"discount_amount",vat)
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# subtotal = (
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# price_after_discount +
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# get_financial_value("registration_fee") +
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# get_financial_value("administration_fee",vat) +
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# get_financial_value("transportation_fee",vat) +
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# get_financial_value("custom_card_fee",vat))
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return total
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def get_total(instance):
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total = get_total_financials(instance,vat=True)
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# total_vat = get_total_financials(instance,vat=True)
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return total |