root/modules/trunk/GoogleMerchant/views.py @ 622

from django.shortcuts import render_to_response, get_object_or_404
from django.http import HttpResponseRedirect, Http404, HttpResponse
from django.template import RequestContext
from django.template.loader import render_to_string
import djw.modules.GoogleMerchant.settings as settings
from datetime import datetime
from django.utils.feedgenerator import rfc3339_date
from djw.core.ProductCatalog.models import Product
from django.http import Http404
# dependense
from djw.custom.ProductCatalog_custom.models import customizedProduct

# todo: move function to djhdgutils
def _site_url():
    from django.contrib.sites.models import Site
    from django.conf import settings as django_settings
    current_site = Site.objects.get(id=django_settings.SITE_ID)
    return current_site.domain


class GProduct(object):
    """ wrapper for product """

    def __init__(self, product, country, *args, **kwargs):
        self._product = product
        self._country = country
        self._customized_product = customizedProduct.objects.get(
            product=product)
        super(GProduct, self).__init__(*args, **kwargs)


    @property
    def product(self):
        return self._product

    @property
    def price(self):
        if settings.PRICE_FOR_COUNTRY:
            single_price = settings.PRICE_FOR_COUNTRY(self.product,
                                                    self._country)
        else:
            single_price = self.product.price

        min_quantity_price = single_price * self._customized_product\
            .minimum_quantity_for_purchase

        return min_quantity_price


    def url_local(self):
        return _site_url() + self.product.get_absolute_url()


    @property
    def id(self):
        return '%s_%s' % (self.product.id, self._country)



def products_xml(request, country):
    """ generate google merchant xml for country ('US', 'GB' or 'DE') """

    if country not in ['US', 'GB', 'DE']:
        raise Http404('Unknown country')
    
    google_products = [GProduct(p, country)
                       for p in Product.objects.all()
                       if p.get_absolute_url() != ''
                       ]

    return render_to_response("google_products_feed.xml",
        RequestContext(request,
                       {'feed_link': _site_url(),
                        'feed_updated': rfc3339_date(datetime.now()),
                        'google_products': google_products,
                        }))