60 lines
1.8 KiB
ReStructuredText
60 lines
1.8 KiB
ReStructuredText
******
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Design
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******
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The *Currency Module* introduces the following concepts:
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.. _model-currency.currency:
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Currency
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========
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Each currency of interest is represented in Tryton by a currency record.
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These currencies are used together with a numeric value to represent an amount
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of money.
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Tryton can convert monetary amounts from one currency to another using the
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exchange `Rate <model-currency.currency.rate>` for a given date.
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This is important for multi-currency transactions, and if you want to manage
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money in a range of different currencies.
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.. seealso::
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Currencies can be found by opening the main menu item:
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|Currencies --> Currencies|__
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.. |Currencies --> Currencies| replace:: :menuselection:`Currencies --> Currencies`
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__ https://demo.tryton.org/model/currency.currency
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.. _model-currency.currency.rate:
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Rate
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====
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The exchange rates that are used when converting money between
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`Currencies <model-currency.currency>` are saved next to their associated
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currencies.
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As exchange rates vary over time they are stored along with the date from
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when they apply.
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All exchange rates are relative with respect to each other.
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.. _model-currency.cron:
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Scheduled Rate Updates
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======================
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The `Exchange Rates <model-currency.currency.rate>` can be automatically
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updated using a *Scheduled Task*.
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When the scheduled task is run it uses the external source to fill in the
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missing rates since the last update.
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The frequency determines which dates get rates.
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.. seealso::
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Scheduled Rate Updates can be found by opening the main menu item:
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|Currencies --> Scheduled Rate Updates|__
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.. |Currencies --> Scheduled Rate Updates| replace:: :menuselection:`Currencies --> Scheduled Rate Updates`
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__ https://demo.tryton.org/model/currency.cron
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