django-autocomplete-light error = 'list' object has no attribute 'queryset'

Question

i am new on django and i need your help, trying since many days to understand django-autocomplete-light, after setup my test, http://192.168.0.108:8000/country-autocomplete/

Answer 1

Here is my implementation, where I used it to suggest similar names that are already present in a model

IMPORTANT: After you must have done all these, don't forget to run python manage.py collectstatic. Also note that you wish to include a placeholder in your form field you have to do it with data-placeholder in the widget autocomplete widget.

When you run it, you'll see this message

Found another file with the destination path 'admin/js/jquery.init.js'. It will be ignored since only the first encountered file is collected. If this is not what you want, make sure every static file has a unique path.

This is the reason the documentation states here that you must place dal and dal_select2 before django.contrib.admin in your INSTALLED_APPS

models.py

from django.db import models

class Patient(models.Model):
    name = models.CharField(max_length=100)
    stable = models.BooleanField(default=False)

views.py

from django.db.models import Q
from dal import autocomplete

class NewName(autocomplete.Select2QuerySetView):
    """Suggest similar names in form"""
    def get_queryset(self):
        qs = People.objects.filter(stable=True)
        if self.q:
            query = Q(name__contains=self.q.title()) | Q(name__contains=self.q.lower()) | Q(name__contains=self.q.upper())
            qs = qs.filter(query)
        return qs

urls.py

from django.urls import path
from . import views
urlpatterns = [
    path('new-name/', views.NewName.as_view(), name='new_name_autocomplete'),
]

forms.py

class PatientForm(forms.ModelForm):
    class Meta:
        model = Patient
        fields = ["stable", "name"]

        widgets = {
            "name" : autocomplete.ModelSelect2(url=reverse_lazy('new_name_autocomplete'), attrs={'class' : 'form-control', 'data-placeholder' : "Name"}),

I had to modify dal/widgets.py and comment out the queryset filtering as shown below. It seems to be a bug or something. The issue has been raised here. But if you're using autocomplete.ListSelect2() as your widget, then there's no need for that.

class QuerySetSelectMixin(WidgetMixin):
    """QuerySet support for choices."""

    def filter_choices_to_render(self, selected_choices):
        """Filter out un-selected choices if choices is a QuerySet."""
        # self.choices.queryset = self.choices.queryset.filter(
        #     pk__in=[c for c in selected_choices if c]
        # )