views.py 文件源码

def show_product(request, product_key, 
                 template_name="store_product.html",
                 form_class=ProductAddToCartForm):
    key = db.Key(product_key)
    query = Product.gql('WHERE __key__ = :1 AND is_active = True', key)
    product = query.get()
    if not product:
        raise Http404('Product not found!')
    page_title = product.name
    if request.method == 'POST':
        postdata = request.POST.copy()
        form = form_class(postdata)
        if form.is_valid():
            cart.add(request, product_key)
            redirect_url = urlresolvers.reverse('show_cart')
            return HttpResponseRedirect(redirect_url)
    else:
        form = form_class()
    return render_to_response(template_name, locals(), context_instance=RequestContext(request))