DAL 3.10.4rc breaks autocomplete views

[ColeDCrawford]

I get errors like this across all my autocompletes after trying the latest RC

TypeError: Object of type Work is not JSON serializable "GET /_autocomplete/work/ HTTP/1.1" 500 138259

[bubublik]

Same error:
raise TypeError(f'Object of type {o.__class__.__name__} ' TypeError: Object of type ModelName is not JSON serializable

[ducdetronquito]

I encountered the same problem with Python 3.11 and DAL 3.10.4rc

For now I had to downgrade to DAL 3.9.7 to fix the problem.

Here is a way to reproduce it, I hope it helps:

# models.py
from django.db import models

class Workspace(models.Model):
    name = models.CharField(max_length=40)

# views.py
from dal import autocomplete

class WorkspaceAutocomplete(autocomplete.Select2QuerySetView):
    def get_queryset(self):
        Workspace.objects.create(name="test to populate DB")
        return Workspace.objects.all()

# urls.py
from django.urls import path

urlpatterns = [
    path(
        "workspace-autocomplete/",
        WorkspaceAutocomplete.as_view(),
        name="workspace-autocomplete",
    ),
]

// In a web browser, this GET request should return an error 500
GET http://localhost:8000/workspace-autocomplete/

[jpic]

This was just fixed in master 3f2880a
Will release in a moment

[jpic]

Please re-open if re-occuring with 3.11.0-rc1

[ducdetronquito]

I tested the 3.11.0-rc1 release in production this morning and the issue has been fixed !
Thanks :=)