first commit

modules/currency/ir.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+import trytond.config as config
+from trytond.model import fields
+from trytond.pool import PoolMeta
+
+rate_decimal = config.getint('currency', 'rate_decimal', default=6)
+
+
+class Configuration(metaclass=PoolMeta):
+    __name__ = 'ir.configuration'
+    currency_rate_decimal = fields.Integer("Currency Rate Decimal")
+
+    @classmethod
+    def default_currency_rate_decimal(cls):
+        return rate_decimal
+
+    def check(self):
+        super().check()
+        if self.currency_rate_decimal != rate_decimal:
+            raise ValueError(
+                "The rate_decimal %s in the [currency] configuration section "
+                "is different from the value %s in 'ir.configuration'." % (
+                    rate_decimal, self.currency_rate_decimal))
+
+
+class Cron(metaclass=PoolMeta):
+    __name__ = 'ir.cron'
+
+    @classmethod
+    def __setup__(cls):
+        super().__setup__()
+        cls.method.selection.append(
+            ('currency.cron|update', "Update Currency Rates"))