Python 向django过滤器添加外部小部件

我想为用户添加一个好的选择器。我使用django过滤器，希望添加一个库django-selector2。我有这样的东西，我认为它不能正常工作-它看起来很正常

from django_select2 import *

class UserChoices(AutoModelSelect2Field):
    queryset = User.objects
    search_fields = ['word__icontains', ]


class Filter(django_filters.FilterSet):
    user = UserChoices(widget=AutoHeavySelect2Widget())
    date_from = django_filters.DateFilter(widget=DateInput(attrs={'class':'datepicker'}))
    date_to = django_filters.DateFilter(widget=DateInput(attrs={'class':'datepicker'}))

    class Meta:
        model = MyModel
        form = MyForm
        fields = ['user', 'date_from', 'date_to']

我的看法是：

class Dashboard(TableFilterView):
    model = MyModel
    table_class = TableOfUsers
    template_name = "lists.html"
    context_object_name = 'obj'
    filterset_class = Filter

    def get_context_data(self, **kwargs):
        context = super(Dashboard, self).get_context_data(**kwargs)
        f = MyForm()
        context['f'] = f
        return context

在模板中，我有：

{% load django_select2_tags %}
{% import_django_select2_js %}
{% import_django_select2_css %}
{% import_django_select2_js_css light=1 %}