Django - 如何在自定义过滤器中向 queryset.filter 添加“或”条件

Question

我想制作一个搜索过滤器，它只使用一个搜索字段在具有多个条件的多个字段中进行搜索。 我有这个 filters.py 文件：

import django_filters
from .models import Product


class ProductFilter(django_filters.FilterSet):
    q = django_filters.CharFilter(method='search_filter', label='Cerca')

    class Meta:
        model = Product
        fields = ['q']

    def search_filter(self, queryset, name, value):
        return queryset.filter(name__icontains=value, sku__iexact=value)

但是return queryset.filter(name__icontains=value, sku__iexact=value)不起作用， return queryset.filter(Product(name__icontains=value) | Product(sku__iexact=value))我该怎么做？

Answer 1

您可以使用Q对象进行过滤^[Django-doc] ：

import django_filters
from django.db.models import Q
from .models import Product

class ProductFilter(django_filters.FilterSet):
    q = django_filters.CharFilter(method='search_filter', label='Cerca')

    class Meta:
        model = Product
        fields = ['q']

    def search_filter(self, queryset, name, value):
        return queryset.filter(Q(name__icontains=value) | Q(sku__iexact=value))

Answer 2

如果没有Q() ，您还可以运行OR符，如下所示：

import django_filters
from .models import Product

class ProductFilter(django_filters.FilterSet):
    q = django_filters.CharFilter(method='search_filter', label='Cerca')

    class Meta:
        model = Product
        fields = ['q']

    def search_filter(self, queryset, name, value): # Here
        return queryset.filter(name__icontains=value) | \
               queryset.filter(sku__iexact=value)