Jquery Django BaseDataTableViewFilter_queryset方法不起作用

我使用的是BaseDatatableView和DataTable jQuery.我已经为BaseDatatableView编写了几个视图，在我必须重写‘Prepare_Result’和‘Render_Column’方法之前没有任何问题.我需要在表中显示实例方法的结果，因此我覆盖了BaseDatatableView类的方法.

这是我在views.py中的代码

class MyModelDatatable(BaseDatatableView):
    model = MyModel
    columns = ['field1', 'field2', 'id']
    columns_searched = [col for col in columns if col != 'id']
    
    def get_initial_queryset(self):
        return self.model.objects.all()

    def filter_queryset(self, qs):
        print('test')  # not displayed
        search_text = self.request.GET.get('search[value]', None)
        if search_text:
            search_terms = search_text.split()
            query = Q()

            for col in self.columns_searched:
                or_conditions = Q()

                for term in search_terms:
                    or_conditions |= Q(**{f'{col}__icontains': term})

                query |= or_conditions    

            qs = qs.filter(query)

        return qs

    def prepare_results(self, qs):
        data = []
        for item in qs:
            item_str = str(item)
            data.append({

                'field1': item_str,
                'field2': item.field2,
                'id': item.id
            })

        return data

    def render_column(self, row, column):
        if column == 'field2':
            return row.field2.strftime('%Y-%m-%d')
        return super(OrderDatatable, self).render_column(row, column)

    def get(self, request, *args, **kwargs):
        return self.get_json_response()

    def get_json_response(self):
        draw = int(self.request.GET.get('draw', 1))
        total_records = self.get_initial_queryset().count()
        total_display_records = total_records
        start = int(self.request.GET.get('start', 0))
        length = int(self.request.GET.get('length', 10))
        end = start + length
        data = self.prepare_results(self.get_initial_queryset()[start:end])
        response = {
            'draw': draw,
            'recordsTotal': total_records,
            'recordsFiltered': total_display_records,
            'data': data,
        }

        return JsonResponse(response)

ObjDatable.js

$(document).ready(function () {
    const table = $('#my-datatable').DataTable({
        'columns': [

            {'data': 'field1'},
            {'data': 'field2'},
            {
                'data': 'id',
                'render': function (data, type, row) {
                    let actionButtons = `
                        <a  href='/edit/${data}'
                            class="btn btn-datatable btn-icon btn-transparent-dark me-2">
                            <i data-feather="edit"></i>
                        </a>
                    `;
                    return actionButtons;
                }
            },
    
        ],
        'paging': true,
        'pageLength': 20,
        'lengthMenu': [5, 10, 20, 30, 50, 100, 200],
        'pagingType': 'full_numbers',
        'processing': true,
        'serverSide': true,
        'ajax': {
            'url': 'orders_datatable_search/',
       
        }
    });
    table.on('draw.dt', function () {
        feather.replace();
    })
});

使用不带方法重写的标准类字段，筛选可以正常工作.覆盖后，所有内容都正常工作，包括分页，但不进行过滤.