ascetic_ddd.seedwork.domain.values.money.expression¶

Classes

class ascetic_ddd.seedwork.domain.values.money.expression.Expression[source]¶

Bases: ABC

Interface for monetary expressions.

This is the core abstraction that allows Money and Sum to be treated uniformly, enabling complex operations like adding different currencies.

abstractmethod reduce(bank, to)[source]¶

Reduce this expression to a Money object in the target currency.

Parameters:¶

bank¶

The bank to use for currency conversion

to¶

The target currency code

Return type:¶

Money

Returns:¶

Money object in the target currency

abstractmethod plus(addend)[source]¶

Add another expression to this one.

Parameters:¶

addend¶

The expression to add

Return type:¶

Expression

Returns:¶

A new Expression representing the sum

abstractmethod times(multiplier)[source]¶

Multiply this expression by a scalar.

Parameters:¶

multiplier¶

The multiplier

Return type:¶

Expression

Returns:¶

A new Expression representing the product