from rest_framework.viewsets import ModelViewSet
from filter_map.backends import FilterMapBackend

class ProfileViewSet(ModelViewSet):
    """
    Consider Profile Model has user FK,
    """
    queryset = ...
    serializer_class = ...
    filter_backends = (FilterMapBackend,)
    filter_map = {
        # plain map
        'first_name': 'user__first_name',
        
        # used with lte operator
        'joined_before': 'date_joined__date__lte',
        
        # also supports separate field name and operator 
        'last_name': ('user__last_name', 'iexact'),
    }