#13069 closed (invalid)
Update on Primary Key performs Insert
| Reported by: | Owned by: | nobody | |
|---|---|---|---|
| Component: | Uncategorized | Version: | 1.1 |
| Severity: | Keywords: | Primary Key, Update, Insert | |
| Cc: | Triage Stage: | Unreviewed | |
| Has patch: | no | Needs documentation: | no |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | no | UI/UX: | no |
Description
When having a simple table with one column that is set to primary_key=True, changing its value in admin pages executes an insert instead of an update. According to the documentation: http://docs.djangoproject.com/en/dev/ref/models/instances/#how-django-knows-to-update-vs-insert I believe this behaviour is wrong.
Reproduction Steps:
1) Create simple model with one column primary_key=True (tested on charfield)
2) Insert value in the admin page
3) Attempt to change the value
Expected Result:
- New value replaces the old one
Actual Result:
- New row is added, the old value stays in the DB too
Change History (2)
follow-up: 2 comment:1 by , 14 years ago
| Resolution: | → invalid |
|---|---|
| Status: | new → closed |
comment:2 by , 14 years ago
Replying to russellm:
This is behaving as designed.
If this is the case, I do question such design. Primary Key should be usable as a holder of values, not only as an ID column for row of values (I can sense the same idea being enforced as in auto_id column...).
This is behaving as designed.