def check_age(request):
    if request.method == 'GET':
        user_age = request.GET['age']
        if user_age < 18:
            return render(request, 'templates/articles/access_denied.html', context)
        else:
            login = request.GET['login']  # сюда значение login из запроса
            tag = request.GET['tag']    # сюда значение tag из запроса
            articles = get_articles_by_tag(tag)
            context = {
                'username' : login,
                'age' : user_age,
                'articles' : tag
            return render(request, 'templates/articles/access_granted.html', context)