How do you use the django-filter package with a list of parameters?

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I know it is an old question, but might be worth it to give an updated answer.

Django-filter contributors have added a field called BaseInFilter which you can combine with other filters to validate the content.

See the docs:
https://django-filter.readthedocs.io/en/latest/ref/filters.html#baseinfilter

For example, this would work in your case:

from django_filters import rest_framework as filters


class NumberInFilter(filters.BaseInFilter, filters.NumberFilter):
    pass


class AccommodationFilter(filters.FilterSet):
    accommodationType_id_in = NumberInFilter(field_name="accommodationType_id", lookup_expr="in")

    class Meta:
        model = Accommodation
        fields = ['accommodationType_id_in', ]

Then you would be able to filter by a list of ids: http://localhost:8000/accommodations?accommodationType_id_in=1,2

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