[MIG] account_statement_import_file to v16

The module was renamed from account_statement_import to account_statement_import_file.
The migration has been done from v14 to v16, to take into account the big changes that took place in v14 with the introduction of the module account_statement_import_base. The changes from v15 have been forward-ported to v16.

account_statement_import_file/models/account_journal.py

@@ -0,0 +1,42 @@
+# Copyright 2004-2020 Odoo S.A.
+# Copyright 2020 Akretion France (http://www.akretion.com/)
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# Licence LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl-3.0).
+
+from odoo import _, api, models
+
+
+class AccountJournal(models.Model):
+    _inherit = "account.journal"
+
+    @api.model
+    def default_get(self, fields_list):
+        res = super().default_get(fields_list)
+        formats_list = self._get_bank_statements_available_import_formats()
+        if formats_list:
+            res["bank_statements_source"] = "file_import"
+        return res
+
+    def _get_bank_statements_available_import_formats(self):
+        """Returns a list of strings representing the supported import formats."""
+        return []
+
+    def __get_bank_statements_available_sources(self):
+        rslt = super().__get_bank_statements_available_sources()
+        formats_list = self._get_bank_statements_available_import_formats()
+        if formats_list:
+            formats_list.sort()
+            import_formats_str = ", ".join(formats_list)
+            rslt.insert(
+                0, ("file_import", _("Import") + "(" + import_formats_str + ")")
+            )
+        return rslt
+
+    def import_account_statement(self):
+        """return action to import bank/cash statements.
+        This button should be called only on journals with type =='bank'"""
+        action = self.env["ir.actions.actions"]._for_xml_id(
+            "account_statement_import_file.account_statement_import_action"
+        )
+        action["context"] = {"journal_id": self.id}
+        return action