def productlist(request, keywords=None, page=1, template_name="dhead/itemlist.html", extra_context=None, storefront=None, *args, **kwargs):
extra_context = extra_context or {}
keywords = deslugify(keywords)
page = int(page)
# Build search term.
if keywords is None:
# Use primary keywords as default search.
keywords = storefront.primary_keywords
else:
# Use search terms in URL if specified.
keywords = keywords.replace('-', ' ')
asin_list = cached.amazon_search(storefront, keywords, page)
item_list = [cached.amazon_lookup(storefront, asin) for asin in asin_list]
total_pages = cached.amazon_search_pages(storefront, keywords)
if total_pages is None:
pages = []
else:
pages = range(1, total_pages + 1)
template_context = dict(
extra_context,
keywords=keywords,
item_list=item_list,
pages=pages,
storefront=storefront,
)
return render_to_response(template_name, template_context, RequestContext(request))
def amazon_search(storefront, keywords, page):
"""Return a list of ASINs from a search against the Amazon API."""
key = '{0}-{1}-azsearch-{2}'.format(storefront.site.domain, slugify(keywords), page)
value = cache.get(key)
if value is not None:
return value
# Cache miss.
keywords = deslugify(keywords)
az = _amazon(storefront)
results = az.ItemSearch(
Keywords=keywords,
SearchIndex=storefront.amazon_category,
ItemPage=page,
MinimumPrice=1,
ResponseGroup='Medium,OfferSummary,Offers,VariationSummary',
)
results = fromstring(results)
Items = results.find(ECS_TAG('Items'))
item_list = Items.findall(ECS_TAG('Item'))
asin_list = []
for item in item_list:
asin = azasin(item)
asin_list.append(asin)
itemkey = '{0}-azlookup-{1}'.format(storefront.site.domain, asin)
cache.set(itemkey, item, AMAZON_CACHE_TIMEOUT)
pageskey = '{0}-{1}-azsearch-pages'.format(storefront.site.domain, slugify(keywords))
try:
total_pages = int(Items.find(ECS_TAG('TotalPages')).text)
except AttributeError:
pass
else:
cache.set(pageskey, total_pages, AMAZON_CACHE_TIMEOUT)
return asin_list
def productdetail(request, keywords=None, title_slug=None, asin=None, template_name="dhead/itemdetail.html", extra_context=None, storefront=None, *args, **kwargs):
extra_context = extra_context or {}
keywords = deslugify(keywords)
item = cached.amazon_lookup(storefront, asin)
template_context = dict(
extra_context,
asin=asin,
item=item,
keywords=keywords,
title_slug=title_slug,
storefront=storefront,
)
return render_to_response(template_name, template_context, RequestContext(request))
