Python-сообщество

class Article(models.Model):
    title = models.CharField(max_length=100,verbose_name='Заголовок')
    description = models.TextField(null=True,verbose_name='Описание')
    user = models.ForeignKey(User,max_length=100,verbose_name='Пользователь')
class UserProfile(models.Model):
    user = models.ForeignKey(User,max_length=100,verbose_name='Пользователь')
    name = models.CharField(verbose_name='Имя',max_length=30)
    lastname = models.CharField(verbose_name='Фамилия',max_length=50)
    city = models.CharField(verbose_name='Город',max_length=50)

class Base(ListView):
    model = UserProfile
    template_name = 'other/base.html'
    def get(self, request, *args, **kwargs):
        tree = UserProfile.objects.all()
        for i in tree:
            print i.city
        print tree
        return render(request, self.template_name, {'nodes': tree})

class Base(ListView):
    model = UserProfile, Article
    template_name = 'other/base.html'
    def get(self, request, *args, **kwargs):
        article = Article.objects.all()
        tree = UserProfile.objects.all()
        for k in article:
            print k.title
        for i in tree:
            print i.city
        print tree
        return render(request, self.template_name, {'nodes': tree})