def __init__(self):
self.tm = Api()
class TradeMe(object):
def __init__(self):
self.tm = Api()
def subcategory_listings(self, cat):
data = {}
#try:
if "Subcategories" in cat:
if cat["Subcategories"] is not None:
for sub_cat in cat["Subcategories"]:
print sub_cat["Number"]
j1 = self.load_categories(sub_cat["Number"])
if j1 is not None:
if "Subcategories" in j1:
if j1["Subcategories"] is not None:
for sb in j1["Subcategories"]:
if "Count" in sb:
data[sb["Name"]] = sb["Count"]
else:
data[sb["Name"]] = 0
#except:
# print "Unexpected error:", sys.exc_info()[0]
# data = None
pprint(data)
return data
def load_new_categories(self, site_updated, number=None):
print "Loading a new category listing"
try:
jcat = self.tm.categories(category=number, with_counts="true")
cat = json.loads(jcat)
pcat = pickle.dumps(cat)
c = Categories.objects.get(number=number)
c.last_updated = site_updated
c.categories=pcat
c.save()
except Categories.DoesNotExist as e:
c = Categories(categories=pcat, last_updated=site_updated,
name=cat["Name"],number=cat["Number"])
c.save()
except:
print "Couldn't fetch new categories", sys.exc_info()[0], number
cat = None
return cat
def load_categories(self, number=None):
try:
if number is None:
site_updated = self.tm.categories_updated()
c = Categories.objects.get(id=1)
else:
site_updated = datetime.datetime.now()
c = Categories.objects.get(number=number)
cache_updated = c.last_updated
# Change the seconds to affect the caching
if (site_updated - cache_updated) <= datetime.timedelta(seconds = 60):
print "Using cached categories"
pcat = c.categories
cat = pickle.loads(pcat)
else:
print "Cache is old"
cat = self.load_new_categories(site_updated, number)
except Categories.DoesNotExist as e:
print "Categories does not exist!!!"
cat = self.load_new_categories(site_updated, number)
return cat
def get_subcategory_listings(self):
cat = self.load_categories()
if cat is not None:
return self.subcategory_listings(cat)
return cat
