将请求传递给django-filters自定义小部件

eblbsuwk  于 2023-07-01  发布在  Go
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我正在尝试创建一个过滤器,如下图所示(来自Fiverr),它是选择与选项作为输入的组合,

我能够创建小部件并选择一个选项,并在提交时发送其子输入值,但在加载后,值消失了,没有选择任何选项,因为单选选择值不是由字段指定的,所以我需要直接从request.GET中获取它,但我无法将reqeust传递给小部件,我在Filter类中看到它,而不是在小部件中。
我的自定义筛选器:`class PriceFilter(Widget):template_name = 'widgets/PriceFilter.html'

def __init__(self, attrs=None, min=0, max=5000, *args, **kwargs):
    self.min = min
    self.max = max
    # print(self.request)
    print(kwargs)
    super(PriceFilter, self).__init__()  

def get_context(self, name, value, attrs=None, *args, **kwargs):
    context = super().get_context(name, value, attrs)
    context['min'] = self.min
    context['max'] = self.max
    print(self.request)
    print(kwargs)
    return context`

我的小工具模板`

<div class="btn-group">
    <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuClickableInside"
        data-bs-toggle="dropdown" data-bs-auto-close="outside" aria-expanded="false">
        Clickable inside
    </button>
    <ul class="dropdown-menu" aria-labelledby="dropdownMenuClickableInside">
        <div class="form-check">
            <input class="form-check-input" type="radio" name="{{widget.name}}__selector"
                id="{{widget.name}}__selector" #if request.GET.price__selector==1 then ceck this#>
            <label class="form-check-label" for="{{widget.name}}__selector">
                Default radio
            </label>
            <div class="input-filters">
                <input type="hidden" name="{{widget.name}}__lt" id="id_{{widget.name}}__lt"
                    value="{{widget.value|default_if_none:''}}">
            </div>
        </div>
    </ul>
</div>


我的过滤器
`class ListFilter(django_filters.FilterSet):price = django_filters.NumberFilter(widget=PriceFilter())

class Meta:
    model = MainModel
    fields = {
            'name':['contains'],'price':[]
        }

def __init__(self, *args, **kwargs):
    print('kwgs')
    # print(args[0])
    self.request = kwargs.pop('request', None)
    super(ListFilter, self).__init__(*args, **kwargs)
    self.filters["price"].request = args[0]

2wnc66cl

2wnc66cl1#

我可以通过在FilterModel的init函数上指定对小部件的请求来解决这个问题

class ListFilter(django_filters.FilterSet):
....

def __init__(self, *args, **kwargs):
    self.request = kwargs.pop('request', None)
    super(ListFilter, self).__init__(*args, **kwargs)
    self.filters["price"].extra['widget'].request = args[0]

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