def category_filter(request, slug):
c = get_common_context(request)
if 'category' in request.POST:
slug = request.POST['category']
if slug:
c['category'] = Category.get_by_slug(slug)
items = Item.objects.filter(category__in=c['category'].get_descendants(include_self=True))
for k in request.POST.keys():
if k.startswith('parametr_'):
p_id = k[9:]
p_value = request.POST[k]
if p_id == 'price_from' and p_value:
items = items.filter(price__gte=float(p_value))
c['price_from'] = int(p_value)
elif p_id == 'price_to' and p_value:
items = items.filter(price__lte=float(p_value))
c['price_to'] = int(p_value)
else:
items = Item.filter_by_parametr(items, p_id, p_value)
else:
items = Item.objects.all()
if 'q' in request.POST:
items = items.filter(name__icontains=request.POST['q'])
c['items'] = items
return render_to_response('catalog.html', c, context_instance=RequestContext(request))
