Exemplo de abstração máxima usando o ClassBasedView e herança de classes.

class CreatePlanoContasView(LoginRequiredMixin,AjaxableResponseMixin,CreateView):
    '''
    Cria o plano de contas
    '''
    model = PlanoContas
    fields = ['nome','descricao','arquivo']
    def get_context_data(self,*args,**kwargs):
        context = super(CreatePlanoContasView, self).get_context_data(*args,**kwargs)
        context['file_upload'] = True
        return context

criar_plano_contas = gzip_page(CreatePlanoContasView.as_view())

class EditarPlanoContasView(LoginRequiredMixin,AjaxableResponseMixin,UpdateView):
    '''
    Atualiza o plano de contas
    '''
    model = PlanoContas
    fields = ['nome','descricao','arquivo','visivel']
    def get_context_data(self,*args,**kwargs):
        context = super(EditarPlanoContasView, self).get_context_data(*args,**kwargs)
        context['file_upload'] = True
        return context

editar_plano_contas = gzip_page(EditarPlanoContasView.as_view())

class ApagarPlanoContasView(LoginRequiredMixin,AjaxableResponseMixin,DeleteViewMixin,DeleteView):
    '''
    Apaga o plano de contas
    '''
    model = PlanoContas