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modules/account_statement/bank.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.
+
+from trytond.i18n import gettext
+from trytond.modules.bank.exceptions import AccountValidationError
+from trytond.pool import Pool, PoolMeta
+from trytond.tools import grouped_slice
+
+
+class Account(metaclass=PoolMeta):
+    __name__ = 'bank.account'
+
+    @classmethod
+    def validate_fields(cls, accounts, field_names):
+        super().validate_fields(accounts, field_names)
+        cls.check_currency_statement_journal(accounts, field_names)
+
+    @classmethod
+    def check_currency_statement_journal(cls, accounts, field_names):
+        pool = Pool()
+        Journal = pool.get('account.statement.journal')
+        if field_names and 'currency' not in field_names:
+            return
+        for sub_accounts in grouped_slice(accounts):
+            sub_account_ids = [a.id for a in sub_accounts]
+            journals = Journal.search([
+                    ('bank_account', 'in', sub_account_ids),
+                    ])
+            for journal in journals:
+                if (journal.currency != journal.bank_account.currency
+                        and journal.bank_account.currency):
+                    raise AccountValidationError(
+                        gettext('account_statement.msg_bank_account_currency',
+                            bank_account=journal.bank_account.rec_name,
+                            currency=journal.currency.rec_name,
+                            journal=journal.rec_name))