using Class Based Generic ListView to seach forms and List

gistfile1.py

....
from django.views.generic import ListView

from sgf.utils.decorators import page, permission_required_sgf
from sgf.administrativo.models import ComiteRegional
from sgf.administrativo.forms import  FormComiteRegionalBusca
......


class SearchListView(ListView):
    form_class = None

    def get_context_data(self, **kwargs):
        context = super(SearchListView, self).get_context_data(**kwargs)
        context['frm_srch'] = self.get_form()
        qs_data = context['frm_srch'].data
        context['query_string'] = ''
        if qs_data:
            qs_data.pop('page', '1')
            context['query_string'] = qs_data.urlencode()

        return context

    def get_queryset(self):
        if self.form_class is None:
            return super(SearchListView, self).get_queryset()
        return self.get_form().get_queryset()

    def get_form(self):
        #if not hasattr(self, '_inst_form'):
        #   setattr(self, '_inst_form', self.form_class(self.request.GET.copy() or None))
        #return self._inst_form
        return self.form_class(self.request.GET.copy() or None)



class ComiteRegionalLista(SearchListView):
    form_class = FormComiteRegionalBusca
    paginate_by = 10
    template_name = "administrativo/comiteregional/comiteregional_lista.jinja"

comiteregional_lista = ComiteRegionalLista.as_view()


###################### FORM 

class FormComiteRegionalBusca(forms.Form):
    texto = forms.CharField(max_length=100, required=False,)

    def get_queryset(self):
        object_list = ComiteRegional.objects.all()

        if self.is_valid():
            if self.cleaned_data['texto']:
                object_list = object_list.filter(nome__icontains=self.cleaned_data['search_text'])

        return object_list