google_merchant.py 文件源码

def write_feed(file_obj):
    """
    Writes feed contents info provided file object
    """
    writer = csv.DictWriter(file_obj, ATTRIBUTES, dialect=csv.excel_tab)
    writer.writeheader()
    categories = Category.objects.all()
    discounts = Sale.objects.all().prefetch_related('products',
                                                    'categories')
    attributes_dict = {a.slug: a.pk for a in ProductAttribute.objects.all()}
    attribute_values_dict = {smart_text(a.pk): smart_text(a) for a
                             in AttributeChoiceValue.objects.all()}
    category_paths = {}
    current_site = Site.objects.get_current()
    for item in get_feed_items():
        item_data = item_attributes(item, categories, category_paths,
                                    current_site, discounts, attributes_dict,
                                    attribute_values_dict)
        writer.writerow(item_data)