Generic autocompletes for django-autocomplete-light v3.x

README.md

For more info see: www.kidstrythisathome.com/2016/08/generic-model-autocomplete-with-dal3.html

urls.py

from django.conf.urls import include, url
from django.views.generic import TemplateView
from parlhand.views import ParliamentSearchView
from parlhand import views

urlpatterns = [
    url(
        r'^ac/autocomplete/(?P<app_name>[a-z_]+)(?P<model_name>[a-z_]+)/(?P<property_name>.+)$',
        views.dal_registry.GenericAutocomplete.as_view(),
        name='generic-autocomplete',
    ),
]

views.py

from django.contrib.contenttypes.models import ContentType
from django.shortcuts import get_object_or_404


class GenericAutocomplete(autocomplete.Select2QuerySetView):
    model = None
    template_name = "autocomplete_light/item.html"

    def dispatch(self, request, *args, **kwargs):
        self.property_name = kwargs.pop('property_name', 'pk')
        if 'app_name' in kwargs.keys() and 'model_name' in kwargs.keys():
            self.model = get_object_or_404(
                ContentType, app_label=kwargs['app_name'], model=kwargs['model_name']
            ).model_class()
        return super(GenericAutocomplete, self).dispatch(request, *args, **kwargs)
        
    def get_queryset(self):
        # Don't forget to filter out results depending on the visitor !
        if not self.request.user.is_authenticated():
            return self.model.objects.none()

        qs = self.model.objects.all()

        if self.q:
            qs = qs.filter(**{'%s__icontains'%self.property_name: self.q})
        return qs

    def get_result_label(self, result):
        """Return the label of a result."""

        template = get_template(self.template_name)
        context = Context({"item": result})
        return template.render(context)