ChainedModelChoiceField.choices initialization incompatibility with Django 5.0

[Dmitri-Sintsov]

Checklist

• This issue is not about installing previous versions of django-smart-selects older than 1.2.8. I understand that previous versions are insecure and will not receive any support whatsoever.
• I have verified that that issue exists against the master branch of django-smart-selects.
• I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
• I have debugged the issue to the smart_selects app.
• I have reduced the issue to the simplest possible case.
• I have included all relevant sections of models.py, forms.py, and views.py with problems.
• I have used GitHub Flavored Markdown to style all of my posted code.

Steps to reproduce

The following error is being produced while the initialization of Django 5.0 project:

 File "/home/user/work/ispdevenv/lib/python3.10/site-packages/smart_selects/db_fields.py", line 8, in <module>
    from smart_selects import form_fields
  File "/home/user/work/ispdevenv/lib/python3.10/site-packages/smart_selects/form_fields.py", line 10, in <module>
    class ChainedModelChoiceField(ModelChoiceField):
  File "/home/user/work/ispdevenv/lib/python3.10/site-packages/smart_selects/form_fields.py", line 62, in ChainedModelChoiceField
    choices = property(_get_choices, ChoiceField._set_choices)
AttributeError: type object 'ChoiceField' has no attribute '_set_choices'

Actual behavior

Impossible to initialize ChainedModelChoiceField.choices.

Expected behavior

Used to work fine with Django<5.0

See django/django@500e010 for the reference.

[djruesch]

Anyone have an ETA when this will be fixed for Django 5.0+

[lguariento]

Hello, same issue here. Is there a temporary workaround at least?

[lguariento]

I have renamed ChoiceField._set_choices into ChoiceField.choices. That did the trick!

[rickylenon]

I have renamed ChoiceField._set_choices into ChoiceField.choices. That did the trick!

This works with me. But i get error:
bool' object has no attribute 'startswith'

My workaround is to change something under class JqueryMediaMixin
line 50:
...
media += Media(js=js)
return media

replace with:
..make sure js is string type..
if isinstance(js, str):
media += Media(js=js)
return media

now it works!

PS:
File to edit:
..site-packages/smart_selects/widgets.py

[yardensachs]

its fixed in 1.7.1, but v1.7.1 is not in pypi, you need to install from github

[Sinanaltundag]

its fixed in 1.7.1, but v1.7.1 is not in pypi, you need to install from github

I install 1.7.1 from github but it has a problem on django admin

Django Version: | 5.0.6
NoReverseMatch
Reverse for 'chained_filter' not found. 'chained_filter' is not a valid view function or pattern name.
C:...\Lib\site-packages\django\urls\resolvers.py, line 851, in _reverse_with_prefix
django.contrib.admin.options.change_view
C:...\Scripts\python.exe
3.11.3

[lguariento]

Have you had a look at this?

[Sinanaltundag]

Thanks for explanation. @lguariento

Additionally I think documentation must be updated. installation progress is very old. for django 5;

for settings.py

USE_DJANGO_JQUERY = True

for urls.py

urlpatterns = [
    path("admin/", admin.site.urls),
    path('smart_selects/', include('smart_selects.urls')),
]

[aijazmahdavi]

I have renamed ChoiceField._set_choices into ChoiceField.choices. That did the trick!

this has an issue, if we are working on local and live then u need to edit files in env which is not recommended

[lguariento]

Of course, it's just a temporary workaround. Hopefully it'll be officially fixed soon.

[hernansaa]

@lguariento @Sinanaltundag you guys just have fixed all my problems. thanks a lot!