def getUserItemIds(users, contentType):
result = []
for user in users:
if (contentType == 'purchases'):
try:
products = sum(extractAttribute(user['purchases'],'products'), [])
ids = extractAttribute(products, 'id')
result.append({'id' : user['id'], 'purchases' : getUniqueValues(ids)})
except KeyError:
pass
else:
try:
result.append({'id' : user['id'], contentType : user[contentType]})
except KeyError:
pass
return result
def getItemIds(items): return getUniqueValues(extractAttribute(items, "id"))