[Fixed]-Django Filter Model by Dictionary

You use a dictionary to pass keyword arguments like this:

models.Design.objects.filter(**sort_params)

There’s no built-in way to conditionally set a dict key, but if you do this a lot, you can write your own:

def set_if_not_none(mapping, key, value):
    if value is not None:
        mapping[key] = value

class StoreView(TemplateView):

    def get(self, request):

        # A bunch of gets
        sort = request.GET.get('sort')
        sort_price = request.GET.get('sort_price')
        sort_mfr_method = request.GET.get('mfr_method')

        # The params tpsort by
        sort_params = {}

        set_if_not_none(sort_params, 'sort', sort)
        set_if_not_none(sort_params, 'sort_price', sort_price)
        set_if_not_none(sort_params, 'sort_mfr_method', sort_mfr_method)

        # The Model Query
        design_list = models.Design.objects.filter(**sort_params)