[GH-ISSUE #335] Error on altering metadata fields #267

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opened 2026-02-25 21:31:34 +03:00 by kerem · 2 comments

kerem commented

2026-02-25 21:31:34 +03:00

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Originally created by @noax on GitHub (Mar 6, 2021).
Original GitHub issue: https://github.com/ciur/papermerge/issues/335

Originally assigned to: @ciur on GitHub.

Description
After creating a folder with some subfolders and documents in it, I've added some metadata fields on it. The initial propagation worked just fine, but when I try to remove or add some fields now, it constantly fails.

Expected
After altering the metadata, changes should be saved and propagated to all child entries (folders and documents)

Actual
Adding new metadata fields, removing existing ones (but not all) or even saving without modifications fails with "There was an error while saving metadata." and the following stack trace:

papermerge_app | [Sat Mar 06 14:54:09.077000 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] ERROR:django.request:Internal Server Error: /metadata/node/199
papermerge_app | [Sat Mar 06 14:54:09.077026 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] Traceback (most recent call last):
papermerge_app | [Sat Mar 06 14:54:09.077031 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner
papermerge_app | [Sat Mar 06 14:54:09.077049 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     response = get_response(request)
papermerge_app | [Sat Mar 06 14:54:09.077052 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/django/core/handlers/base.py", line 181, in _get_response
papermerge_app | [Sat Mar 06 14:54:09.077055 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     response = wrapped_callback(request, *callback_args, **callback_kwargs)
papermerge_app | [Sat Mar 06 14:54:09.077058 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/django/contrib/auth/decorators.py", line 21, in _wrapped_view
papermerge_app | [Sat Mar 06 14:54:09.077062 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     return view_func(request, *args, **kwargs)
papermerge_app | [Sat Mar 06 14:54:09.077065 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/views/metadata.py", line 98, in metadata
papermerge_app | [Sat Mar 06 14:54:09.077068 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     item.kv.update(
papermerge_app | [Sat Mar 06 14:54:09.077071 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 545, in update
papermerge_app | [Sat Mar 06 14:54:09.077087 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self.apply_updates(
papermerge_app | [Sat Mar 06 14:54:09.077090 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 472, in apply_updates
papermerge_app | [Sat Mar 06 14:54:09.077093 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self.propagate(
papermerge_app | [Sat Mar 06 14:54:09.077119 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 583, in propagate
papermerge_app | [Sat Mar 06 14:54:09.077122 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self.instance.propagate_changes(
papermerge_app | [Sat Mar 06 14:54:09.077125 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 379, in propagate_changes
papermerge_app | [Sat Mar 06 14:54:09.077128 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     node.apply_diffs(
papermerge_app | [Sat Mar 06 14:54:09.077131 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 351, in apply_diffs
papermerge_app | [Sat Mar 06 14:54:09.077134 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self.apply_diff(diff, attr_updates)
papermerge_app | [Sat Mar 06 14:54:09.077137 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 305, in apply_diff
papermerge_app | [Sat Mar 06 14:54:09.077141 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self._apply_diff_update(diff, attr_updates)
papermerge_app | [Sat Mar 06 14:54:09.077144 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 293, in _apply_diff_update
papermerge_app | [Sat Mar 06 14:54:09.077147 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self.kv.apply_updates(updates)
papermerge_app | [Sat Mar 06 14:54:09.077150 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 472, in apply_updates
papermerge_app | [Sat Mar 06 14:54:09.077153 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self.propagate(
papermerge_app | [Sat Mar 06 14:54:09.077156 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 583, in propagate
papermerge_app | [Sat Mar 06 14:54:09.077159 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self.instance.propagate_changes(
papermerge_app | [Sat Mar 06 14:54:09.077162 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 379, in propagate_changes
papermerge_app | [Sat Mar 06 14:54:09.077165 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     node.apply_diffs(
papermerge_app | [Sat Mar 06 14:54:09.077168 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 351, in apply_diffs
papermerge_app | [Sat Mar 06 14:54:09.077174 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self.apply_diff(diff, attr_updates)
papermerge_app | [Sat Mar 06 14:54:09.077216 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 305, in apply_diff
papermerge_app | [Sat Mar 06 14:54:09.077235 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     self._apply_diff_update(diff, attr_updates)
papermerge_app | [Sat Mar 06 14:54:09.077262 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]   File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 297, in _apply_diff_update
papermerge_app | [Sat Mar 06 14:54:09.077279 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164]     raise ValueError(
papermerge_app | [Sat Mar 06 14:54:09.077282 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] ValueError: Don't know how to replace None (found in Diff(update, []))

Removing all existing metadata fields results in the Interface reporting "Metadata successfully saved." and no errors in the log, but on reload the metadata fields show up unchanged.

Info:

OS: [Ubuntu 20.04 LTS]
Browser [Firefox,Chromium]
Database [MariaDB]
Papermerge Version [eugenci/papermerge:2.0.0.rc45 (docker)]

Originally created by @noax on GitHub (Mar 6, 2021). Original GitHub issue: https://github.com/ciur/papermerge/issues/335 Originally assigned to: @ciur on GitHub. **Description** After creating a folder with some subfolders and documents in it, I've added some metadata fields on it. The initial propagation worked just fine, but when I try to remove or add some fields now, it constantly fails. **Expected** After altering the metadata, changes should be saved and propagated to all child entries (folders and documents) **Actual** Adding new metadata fields, removing existing ones (but not all) or even saving without modifications fails with "There was an error while saving metadata." and the following stack trace: ``` papermerge_app | [Sat Mar 06 14:54:09.077000 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] ERROR:django.request:Internal Server Error: /metadata/node/199 papermerge_app | [Sat Mar 06 14:54:09.077026 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] Traceback (most recent call last): papermerge_app | [Sat Mar 06 14:54:09.077031 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner papermerge_app | [Sat Mar 06 14:54:09.077049 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] response = get_response(request) papermerge_app | [Sat Mar 06 14:54:09.077052 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/django/core/handlers/base.py", line 181, in _get_response papermerge_app | [Sat Mar 06 14:54:09.077055 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] response = wrapped_callback(request, *callback_args, **callback_kwargs) papermerge_app | [Sat Mar 06 14:54:09.077058 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/django/contrib/auth/decorators.py", line 21, in _wrapped_view papermerge_app | [Sat Mar 06 14:54:09.077062 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] return view_func(request, *args, **kwargs) papermerge_app | [Sat Mar 06 14:54:09.077065 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/views/metadata.py", line 98, in metadata papermerge_app | [Sat Mar 06 14:54:09.077068 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] item.kv.update( papermerge_app | [Sat Mar 06 14:54:09.077071 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 545, in update papermerge_app | [Sat Mar 06 14:54:09.077087 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self.apply_updates( papermerge_app | [Sat Mar 06 14:54:09.077090 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 472, in apply_updates papermerge_app | [Sat Mar 06 14:54:09.077093 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self.propagate( papermerge_app | [Sat Mar 06 14:54:09.077119 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 583, in propagate papermerge_app | [Sat Mar 06 14:54:09.077122 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self.instance.propagate_changes( papermerge_app | [Sat Mar 06 14:54:09.077125 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 379, in propagate_changes papermerge_app | [Sat Mar 06 14:54:09.077128 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] node.apply_diffs( papermerge_app | [Sat Mar 06 14:54:09.077131 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 351, in apply_diffs papermerge_app | [Sat Mar 06 14:54:09.077134 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self.apply_diff(diff, attr_updates) papermerge_app | [Sat Mar 06 14:54:09.077137 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 305, in apply_diff papermerge_app | [Sat Mar 06 14:54:09.077141 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self._apply_diff_update(diff, attr_updates) papermerge_app | [Sat Mar 06 14:54:09.077144 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 293, in _apply_diff_update papermerge_app | [Sat Mar 06 14:54:09.077147 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self.kv.apply_updates(updates) papermerge_app | [Sat Mar 06 14:54:09.077150 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 472, in apply_updates papermerge_app | [Sat Mar 06 14:54:09.077153 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self.propagate( papermerge_app | [Sat Mar 06 14:54:09.077156 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/kvstore.py", line 583, in propagate papermerge_app | [Sat Mar 06 14:54:09.077159 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self.instance.propagate_changes( papermerge_app | [Sat Mar 06 14:54:09.077162 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 379, in propagate_changes papermerge_app | [Sat Mar 06 14:54:09.077165 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] node.apply_diffs( papermerge_app | [Sat Mar 06 14:54:09.077168 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 351, in apply_diffs papermerge_app | [Sat Mar 06 14:54:09.077174 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self.apply_diff(diff, attr_updates) papermerge_app | [Sat Mar 06 14:54:09.077216 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 305, in apply_diff papermerge_app | [Sat Mar 06 14:54:09.077235 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] self._apply_diff_update(diff, attr_updates) papermerge_app | [Sat Mar 06 14:54:09.077262 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] File "/opt/app/.venv/lib/python3.8/site-packages/papermerge/core/models/node.py", line 297, in _apply_diff_update papermerge_app | [Sat Mar 06 14:54:09.077279 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] raise ValueError( papermerge_app | [Sat Mar 06 14:54:09.077282 2021] [wsgi:error] [pid 1414:tid 140125064894208] [remote 10.100.71.31:45164] ValueError: Don't know how to replace None (found in Diff(update, [])) ``` Removing **all** existing metadata fields results in the Interface reporting "Metadata successfully saved." and no errors in the log, but on reload the metadata fields show up unchanged. **Info:** - OS: [Ubuntu 20.04 LTS] - Browser [Firefox,Chromium] - Database [MariaDB] - Papermerge Version [eugenci/papermerge:2.0.0.rc45 (docker)]

kerem added the

bug

good issue

labels

2026-02-25 21:31:34 +03:00

kerem commented

2026-02-25 21:31:34 +03:00

Author

Owner

@noax commented on GitHub (Mar 6, 2021):

@noax commented on GitHub (Mar 6, 2021): ![Peek 2021-03-06 15-58](https://user-images.githubusercontent.com/10982591/110211064-1a377100-7e95-11eb-931c-dc481172ecb2.gif)

kerem commented

2026-02-25 21:31:34 +03:00

Author

Owner

@ciur commented on GitHub (Mar 7, 2021):

@noax, thanks for detailed report! I will have a look a come back with more info.

@ciur commented on GitHub (Mar 7, 2021): @noax, thanks for detailed report! I will have a look a come back with more info.