[FIX] translation not loaded

account_financial_report/models/__init__.py

@@ -1,3 +1,4 @@
 from . import account
 from . import account_group
 from . import account_move_line
+from . import ir_actions_report

account_financial_report/models/ir_actions_report.py

@@ -0,0 +1,27 @@
+# Copyright 2020 Onestein (<https://www.onestein.eu>)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import api, models
+
+
+class IrActionsReport(models.Model):
+    _inherit = "ir.actions.report"
+
+    @api.model
+    def _prepare_account_financial_report_context(self, data):
+        lang = data.get("account_financial_report_lang")
+        return dict(self.env.context or {}, lang=lang) if lang else self.env.context
+
+    @api.model
+    def render_qweb_html(self, docids, data=None):
+        return super(
+            IrActionsReport,
+            self.with_context(self._prepare_account_financial_report_context(data)),
+        ).render_qweb_html(docids, data)
+
+    @api.model
+    def render_xlsx(self, docids, data):
+        return super(
+            IrActionsReport,
+            self.with_context(self._prepare_account_financial_report_context(data)),
+        ).render_xlsx(docids, data)