from django.conf import settings

BILLS_IDENT_NUMBER_LENGTH = getattr(settings, 'BILLS_IDENT_NUMBER_LENGTH', 4)
BILLS_INVOICE_IDENT_PREFIX = getattr(settings, 'BILLS_INVOICE_IDENT_PREFIX', 'I')
BILLS_AMENDMENT_INVOICE_IDENT_PREFIX = getattr(settings, 'BILLS_AMENDMENT_INVOICE_IDENT_PREFIX', 'A')
BILLS_FEE_IDENT_PREFIX = getattr(settings, 'BILLS_FEE_IDENT_PREFIX', 'F')
BILLS_AMENDMENT_FEE_IDENT_PREFIX = getattr(settings, 'BILLS_AMENDMENT_FEE_IDENT_PREFIX', 'B')
BILLS_BUDGET_IDENT_PREFIX = getattr(settings, 'BILLS_BUDGET_IDENT_PREFIX', 'Q')