How to create a filter with a field that does not exist in the model

[toshiki-kohno]

How to create a filter with a field that does not exist in the model

I was creating a filter with a field "deletion" that does not exist in the User model.

class UsersFilter(filters.FilterSet):
    deletion = filters.BooleanFilter(name='deletion_time', lookup_expr='isnull')
    class Meta:
        model = Users
        fields = {
            'deletion'
            }

This was working in django-filter 1.1.0,
In the latest version, I get the following error
'Meta.fields' must not contain non-model field names: deletion

How can I create a field that does not exist in the model?

[ctilch]

I had the same problem today.

"GET /app/users/?search_for=username"

class UserFilter(django_filters.FilterSet):
    search_for = django_filters.CharFilter(field_name="name", lookup_expr="icontains")

    class Meta:
        model = User
        fields = ["name"]

works for me.

So please try:

class UsersFilter(filters.FilterSet):
    deletion = filters.BooleanFilter(name='deletion_time', lookup_expr='isnull')
    class Meta:
        model = Users
        fields = ['deletion_time']