Opened 10 years ago
Last modified 7 years ago
#23604 closed Bug
Regression in allowing to handle M2M fields from the "receiving end" - follow up to #23329 — at Initial Version
| Reported by: | Emmanuelle Delescolle | Owned by: | nobody |
|---|---|---|---|
| Component: | contrib.admin | Version: | 1.7 |
| Severity: | Release blocker | Keywords: | to_field_allowed, M2M |
| Cc: | Simon Charette | Triage Stage: | Accepted |
| Has patch: | yes | Needs documentation: | yes |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | yes | UI/UX: | no |
Description
Up until Django 1.5.8 and Django 1.6.5 in was possible to have a ManyToMany field displayed in the admin on the "receiving-end" of the relationship with the ability to add new records.
Due to the restrictiveness of the new to_field_allowed method, one cannot open the popup for adding new records to the Model where the ManyToMany relationship is defined.
I realize this usage of the admin site is undocumented but, since the current code allows to perform that from the "receiving-end" of ForeignKey fields, IMHO it should also work for ManyToMany fields.
If the descriptions sounds too vague, see http://www.lasolution.be/blog/related-manytomanyfield-django-admin-site.html for a complete step-by-step explanation on how to reproduce.
Failing test (patch for master)