Possible to do an `in` `lookup_type` through the django-filter URL parser?

Question

I\'m using django-filter with django-rest-framework and I\'m trying to instantiate a filter that accepts lists of numbers for filtering the query set down

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Answer 1

I know this is an old post, but there is now a better solution. The change that makes it correct is posted here.

They added a BaseInFilter and a BaseRangeFilter. The documentation is here.

Big picture, BaseFilter checks for CSV, and then when mixed with another filter it does what you are asking. Your code can now be written like:

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

class MyModelViewSet(viewsets.ModelViewSet):
    ids = NumberInFilter(name='id', lookup_expr='in')

    class Meta:
        model = MyModel
        fields = ['ids']