Question

我想在django_filters中创建一个OR过滤器。所有过滤器都是完美的，除了我的产品名称。

我有一个搜索框，需要在列name_nl，name_en和name_fr中搜索产品名称。

如何使用Django_filter创建或过滤？

class ProductFilter(django_filters.FilterSet):
status = django_filters.CharFilter(name='productvariant__status_id', lookup_type='exact')
productname = django_filters.CharFilter(name='name_nl', lookup_type='icontains')

class Meta:
    model = Product
    fields = {
        'productname': ['icontains'],
        'status': ['exact']
    }

Answer 1

你可以这样做。

import django_filters
from django.db.models import Q

from app.models import User

class UserFilter(django_filters.FilterSet):

    q = django_filters.MethodFilter()

    class Meta:
        model = User
        fields = []

    def filter_q(self, queryset, value):
        return queryset.filter(
            Q(last_name__icontains=value) | Q(first_name__icontains=value) | Q(email__icontains=value)
        )

然后制作一般视图。

from django_filters.views import FilterView

from .filters import UserFilter

class AgentListView(ClassRequiredMixin, FilterView):

    filterset_class = UserFilter

有关您的模板，请参阅http://django-filter.readthedocs.org/en/latest/usage.html#the-template

Answer 2

从1.x版本开始，MethodFilter was removed。现在看起来像：

import django_filters
from django.db.models import Q

from app.models import User

class UserFilter(django_filters.FilterSet):
    q = filters.CharFilter(method='filter_q')

    def filter_q(self, qs, name, value):
        return qs.filter(
            Q(last_name__icontains=value) | Q(first_name__icontains=value) | Q(email__icontains=value)
        )

并查看

from django_filters.views import FilterView

from .filters import UserFilter

class AgentListView(ClassRequiredMixin, FilterView):

    filterset_class = UserFilter

请注意，如果您使用的是DRF，则2.x中的filterset_class在1.x中被命名为filter_class

from django_filters import rest_framework as filters

class AgentListViewSet(viewsets.ModelViewSet):
    filter_backends = (filters.DjangoFilterBackend, )
    filter_class = UserFilter

Answer 3

您可以使用Q() objects。

来自文档：

Poll.objects.get(
    Q(question__startswith='Who'),
    Q(pub_date=date(2005, 5, 2)) | Q(pub_date=date(2005, 5, 6))
)

给出类似的东西：

SELECT * from polls WHERE question LIKE 'Who%'
    AND (pub_date = '2005-05-02' OR pub_date = '2005-05-06')

使用django_filters创建OR过滤器

3 个答案: