Filter by repeated fields /some_endpoint?sth=1&sth=2&sth=3

[Przemek625]

How to write a filter that will filter by multiple repeated params. For example:

/some_endpoint?sth=1&sth=2&sth=3

Lets assume that sth is IntegerField. It would be good if it could also valudate if the gived param is also Integer in this case.

I went through the documentation and I find it extremely difficult to do sth as simple as that.

I found example that allows to filter by values seperated with ,. I mean this code:

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

But this does not meet my requirements and I am not interested in this class.

For examle in django rest framework it is very easy to achieve this. It is as simple as that :

class SomeSerializer(serializers.Serializer):
    sth = serializers.ListField(
        required=False,
        child=serializers.CharField(),
    )

[carltongibson]

See the docs for MultipleChoiceFilter - this is exactly what it does.