From 29894f304b2e2925e21fc5f9ca629b5f84d604f6 Mon Sep 17 00:00:00 2001
From: Christopher Rogos <crogos@gmail.com>
Date: Tue, 7 Jul 2026 09:57:09 +0000
Subject: [PATCH] [IMP] fs_attachment: two attachments with same name and
 content

---
 fs_attachment/models/ir_attachment.py     | 13 +++++-
 fs_attachment/tests/test_fs_attachment.py | 50 +++++++++++++++++++++++
 2 files changed, 62 insertions(+), 1 deletion(-)

diff --git a/fs_attachment/models/ir_attachment.py b/fs_attachment/models/ir_attachment.py
index bf8cdee3ae..72ca189736 100644
--- a/fs_attachment/models/ir_attachment.py
+++ b/fs_attachment/models/ir_attachment.py
@@ -472,6 +472,7 @@ def _enforce_meaningful_storage_filename(self) -> None:
         Keeping the same meaning and mimetype is important to also ease to provide
         a meaningful and SEO friendly URL to the file in the filesystem storage.
         """
+        renamed_attachments = {}
         for attachment in self:
             if not self._is_file_from_a_storage(attachment.store_fname):
                 continue
@@ -485,7 +486,17 @@ def _enforce_meaningful_storage_filename(self) -> None:
             new_filename_with_path = os.path.join(
                 os.path.dirname(filename), new_filename
             )
-            fs.rename(filename, new_filename_with_path)
+
+            if filename in renamed_attachments:
+                if renamed_attachments[filename] == new_filename_with_path:
+                    # we already renamed this file, no need to rename it again
+                    continue
+                else:
+                    fs.copy(renamed_attachments[filename], new_filename_with_path)
+            else:
+                fs.rename(filename, new_filename_with_path)
+            renamed_attachments[filename] = new_filename_with_path
+
             attachment.fs_filename = new_filename
             # we need to update the store_fname with the new filename by
             # calling the write method of the field since the write method
diff --git a/fs_attachment/tests/test_fs_attachment.py b/fs_attachment/tests/test_fs_attachment.py
index f52c3ec900..6080fc2d5b 100644
--- a/fs_attachment/tests/test_fs_attachment.py
+++ b/fs_attachment/tests/test_fs_attachment.py
@@ -431,6 +431,56 @@ def test_create_attachments_basic_user(self):
             }
         )
 
+    def test_create_two_attachments(self):
+        self.temp_backend.use_as_default_for_attachments = True
+        res = self.ir_attachment_model.create(
+            [
+                {"name": "test2.txt", "raw": b"content"},
+                {"name": "test.txt", "raw": b"content"},
+            ]
+        )
+        self.assertEqual(len(res), 2)
+
+    def test_create_two_attachments_same_name(self):
+        self.temp_backend.use_as_default_for_attachments = True
+        res = self.ir_attachment_model.create(
+            [
+                {"name": "test.txt", "raw": b"content"},
+                {"name": "test.txt", "raw": b"content"},
+            ]
+        )
+        self.assertEqual(len(res), 2)
+        attachment1 = res[0]
+        attachment2 = res[1]
+        self.assertEqual(attachment1.name, "test.txt")
+        self.assertEqual(attachment2.name, "test.txt")
+        self.assertNotEqual(attachment1.store_fname, attachment2.store_fname)
+        self.assertEqual(attachment1.raw, attachment2.raw)
+
+        attachment1.raw = b"new content"
+        self.assertNotEqual(attachment1.raw, attachment2.raw)
+
+        attachment2 = self.ir_attachment_model.browse(attachment2.id)
+        self.assertEqual(attachment2.raw, b"content")
+
+    def test_create_two_attachments_differnt_call(self):
+        self.temp_backend.use_as_default_for_attachments = True
+        res = self.ir_attachment_model.create(
+            [
+                {"name": "test.txt", "raw": b"content"},
+            ]
+        )
+        res2 = self.ir_attachment_model.create(
+            [
+                {"name": "test.txt", "raw": b"content"},
+            ]
+        )
+        self.assertEqual(len(res), 1)
+        self.assertEqual(len(res2), 1)
+
+        self.assertNotEqual(res[0].store_fname, res2[0].store_fname)
+        self.assertEqual(res[0].raw, res2[0].raw)
+
     def test_update_png_to_svg(self):
         b64_data_png = (
             b"iVBORw0KGgoAAAANSUhEUgAAADMAAAAhCAIAAAD73QTtAAAAA3NCSVQICAjb4U/gAA"