Account.displayed_exchange_currency holds the account/currency precedence for transactions, and shown_exchange_currency() expresses the same rule as a query expression for the insights and account totals, replacing the per-module checks.
Currencies and accounts get a "Show exchanged amounts" switch, on by
default. Turning it off hides the amounts converted to the exchange
currency without removing the exchange currency, so consolidated totals
on the Net Worth page keep working.
The switch belongs to whichever one provides the exchange currency:
- Transactions (including both legs of combined transfers) use the
account's switch when the account has its own exchange currency, and
the currency's switch otherwise, matching how the exchanged amount is
picked.
- Account cards and Net Worth account rows follow the account.
- Currency cards, the monthly summary and daily allowance, Net Worth
currency rows and the month-by-month and year-by-year insights follow
the currency.
Currency totals still convert hidden currencies, because the
consolidated totals are built from those values; the setting only
leaves them out of the displayed data. The API keeps returning
exchanged_amount for transactions, and the account serializer exposes
the new field (currencies already serialize all fields).
Closes#486
Herculino Trotta
Asish Kumar