如何使用Django过滤器添加初始/默认值？

Question

使用Django Filters时，如何添加初始/默认值？在

例如，initial=False

class UserFilter(django_filters.FilterSet):
    archive = django_filters.BooleanFilter(initial=False)

    class Meta:
         model = User
         fields = ['archive']

我已经厌倦了重写__init__，但这似乎不起作用。在

Answer 1

对于DRF，您可以尝试重写__init__：

def __init__(self, *args, **kwargs):
    kwargs['data']._mutable = True
    if 'archive' not in kwargs['data']:
        kwargs['data']['archive'] = False
    kwargs['data']._mutable = False
    super(UserFilter, self).__init__(*args, **kwargs)

但你应该读django-filter.readthedocs.io...using-initial-values-as-defaults

Answer 2

您可以尝试重写UserFilter的__init__方法：

def __init__(self, *args, **kwargs):
    super(UserFilter, self).__init__(*args, **kwargs)
    self.form.initial['archive'] = False

Answer 3

我有一个类似的问题，我想保存用户的选择，即使他们已经离开页面。我在Filter视图中实现了我的解决方案，如下所示。。。在

class BucketLookupView(UserPassesTestMixin,SingleTableMixin,FilterView):
    template_name = "finance/planning-bucket-lookup.html"
    model = finance_models.SalesOrderBucket
    filterset_class = finance_filters.BucketFilter
    table_class = finance_tables.BucketTable

    def get_filterset_kwargs(self,*args):
        kwargs = super().get_filterset_kwargs(*args)
        if kwargs['data']:
            bucket_filter_data = kwargs['data']
            self.request.session['bucket_filter_data']= bucket_filter_data
        else:
            if 'bucket_filter_data' in self.request.session.keys():
                kwargs['data']=self.request.session['bucket_filter_data']
        return kwargs