Implementando form de filtro numa ListView (Resposta para um tópico na Django Brasil)

forms.py

# https://groups.google.com/forum/?fromgroups#!topic/django-brasil/d6gV1V9qrgU
from django.forms import ModelForm
from minha_app.models import MeuModel


class MeuForm(ModelForm):
    class Meta:
        model = MeuModel

views.py

# https://groups.google.com/forum/?fromgroups#!topic/django-brasil/d6gV1V9qrgU
from django.views.generic import ListView
from django.db.models import Q
from minha_app.forms import MeuForm
from minha_app.models import MeuModel


class MinhaListView(ListView):
    model = MeuModel
    template_name = 'meu_template.html'
    context_object_name = 'resultados'

    def get_queryset(self, **kwargs):
        filtro1 = self.request.GET.get('parametro1', '')
        filtro2 = self.request.GET.get('parametro2', '')
        return MeuModel.objects.filter(Q(CAMPO1__icontains=filtro1) | Q(CAMPO2__icontains=filtro2))

    def get_context_data(self, **kwargs):
        context = super(MinhaListView, self).get_context_data(**kwargs)

        context['meuform'] = MeuForm
        return context