Django – How to add "or" condition to queryset.filter in custom filter

Question

I want to make a search filter which searches in multiple fields with multiple conditions, using only one search field. I have this filters.py file:

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)

But return queryset.filter(name__icontains=value, sku__iexact=value) doesn’t work, neither return queryset.filter(Product(name__icontains=value) | Product(sku__iexact=value))
How can I do this?

Asked By: Michele Candura

||

Source

Answer 1

You can filter with Q objects ^[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))

Answered By: Willem Van Onsem

Answer 2

Without Q(), you can also run OR operater as shown below:

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)

Answered By: Kai – Kazuya Ito

Django – How to add "or" condition to queryset.filter in custom filter

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