def discount(self):
"""The AllowanceTotalAmount of the Invoice.
"""
if self._discount_amount is not None:
return self._discount_amount
else:
return MyMoney('0', self._currency)
def charge(self):
"""The ChargeTotalAmount of the Invoice.
"""
if self._charge_amount is not None:
return self._charge_amount
else:
return MyMoney('0', self._currency)
def parse_money(amount, currency):
if amount is None:
return None
elif isinstance(amount, MyMoney):
return amount
try:
return MyMoney(amount, currency)
except InvalidOperation:
raise ValueError('Could not convert {} to money'.format(amount))
def payable_amount(self):
"""The total PayableAmount of the invoice.
It's only computed as the :meth:`total` if the Invoice
was not imported from an XML file. In that case, its value is
the one reported on the XML.
"""
if self._payable_amount is not None:
return self._payable_amount
# TODO PrepaidAmount
prepaid_amount = MyMoney('0', self._currency)
return self.total() - prepaid_amount
def tax_amount(self, tax_type=None):
"""Computes the tax amount of the Invoice.
Parameters
----------
tax_type: Tax object (default None).
If a Tax object is provided, the tax amount corresponding
to the porvided Tax. If None the total tax amount.
"""
if tax_type is None:
taxes = self.unique_taxes
else:
taxes = {tax_type}
result = (self.taxable_base(tax_type=tax) * tax.percent
for tax in taxes)
return sum(result, MyMoney('0', self._currency))
def discount_amount(self):
"""Property: The AllowanceTotalAmount of the Invoice.
Parameters
----------
value: string, integer, float
The input must be a valid input for the Decimal class
the Python Standard Library.
Raises
------
decimal.InvalidOperation: If the input cannot be converted
to a Decimal.
"""
if self._discount_amount is not None:
return self._discount_amount
else:
return MyMoney('0', self._currency)
def gross_subtotal(self, tax_type=None):
"""Sum of gross amount of each invoice line."""
amounts = (line.line_extension_amount
for line in self.lines_with_taxes(tax_type=tax_type))
return sum(amounts, MyMoney('0', self._currency))