Create the module for Swift attachment

attachment_swift/models/__init__.py

@@ -0,0 +1 @@
+from . import ir_attachment

attachment_swift/models/ir_attachment.py

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+# -*- coding: utf-8 -*-
+# Copyright 2017 Camptocamp SA
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html)
+
+
+import logging
+from odoo import api, models
+
+_logger = logging.getLogger(__name__)
+
+
+class IrAttachment(models.Model):
+    _inherit = 'ir.attachment'
+
+    @api.model
+    def _file_write(self, value, checksum):
+        _logger.debug('Writing a file :)')
+        filename = super(IrAttachment, self)._file_write(value, checksum)
+        return filename