Django过滤多个URL参数 [英] Django-filter multiple URL parameters

问题描述

我正在使用 Django-filter 应用在我的网站上进行搜索.这是代码:

I am using Django-filter app to construct search on my website. This is the code:

class PropertyFilter(django_filters.FilterSet):
city = django_filters.ModelMultipleChoiceFilter(queryset=City.objects.all(), widget = CheckboxSelectMultiple)
trade_type = django_filters.ModelMultipleChoiceFilter(queryset=Trade.objects.all(), widget = CheckboxSelectMultiple)

class Meta:
    model = Property
    fields = ['city', 'trade_type']

问题在于，当用户标记两个城市时，Django过滤器仅通过最后一个URL参数(此案例中的城市2)过滤对象:

The problem is that when user marks two cities, Django-filter only filters objects via last URL parameter (city no. 2 in this casse):

http://example.org/lt/list/city=1&city=2

Models.py :

class City(models.Model):
    name = models.CharField(max_length=250, verbose_name=_('Name'))

也许我做错了什么?

推荐答案

您可以创建查询字符串的复数形式并接受列表作为过滤器参数:

You could create a plural version of your query string and accept a list as the filter argument:

http://example.org/lt/list/?cities=1,2

class CustomFilterList(django_filters.Filter):
    def filter(self, qs, value):
        if value not in (None, ''):
            values = [v for v in value.split(',')]
            return qs.filter(**{'%s__%s' % (self.name, self.lookup_type): values})
        return qs

class PropertyFilter(django_filters.FilterSet):
    city = django_filters.ModelMultipleChoiceFilter(queryset=City.objects.all(), widget = CheckboxSelectMultiple)
    trade_type = django_filters.ModelMultipleChoiceFilter(queryset=Trade.objects.all(), widget = CheckboxSelectMultiple)
    cities = CustomFilterList(name="city", lookup_type="in")

    class Meta:
        model = Property
        fields = ['cities', 'city', 'trade_type']

查看此答案以正确过滤值列表:

Check out this answer for filtering a list of values properly:

可以做通过django-filter URL解析器来查找inlookup_type吗?

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