Django-filter, how to make multiple fields search? (with django-filter!)

Question

How can I make multiple fields search with Django-filter from model like:

class Location(models.Model):
    loc = models.CharField(max_length=100, blank=True)
    loc_mansioned = models.CharField(max_length=100, blank=True)
    loc_country = models.CharField(max_length=100, blank=True)
    loc_modern = models.CharField(max_length=100, blank=True)

I need one input field on my website, that can search over all fields of Location model

Answer 1

You can probably create a custom filter and do something like this:

from django.db.models import Q
import django_filters


class LocationFilter(django_filters.FilterSet):
    q = django_filters.CharFilter(method='my_custom_filter',label="Search")

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

    def my_custom_filter(self, queryset, name, value):
        return queryset.filter(
            Q(loc__icontains=value) | Q(loc_mansioned__icontains=value) | Q(loc_country__icontains=value) | Q(loc_modern__icontains=value)
        )

This would filter by any of of those fields. You can replace the icontains with whatever you want.

Answer 2

This is perfect. I'm trying to do a dynamic filter, with a switch to get one more field in the search if checked. Something like this:

def my_custom_filter(self, queryset, name, value):
    return Reference.objects.filter(
        Q(ref_title__icontains=value))

def my_custom_filter_with_description(self, queryset, name, value):
    return Reference.objects.filter(
        Q(ref_title__icontains=value) | Q(complete_description__icontains=value))

But I have no clue how to link the switch to the class