def get_friends(user_id):
"""Return the list of Facebook friends of user `user_id` who are also
using the service.
The friends list is a list of native user IDs (not Facebook user IDs),
each an object of type ObjectId.
A caching layer sits before the database.
"""
result = FriendsCache.get(user_id)
if result is None:
user = yield sundowner.data.users.read(user_id)
try:
fb_friends = user["facebook"]["friends"]["data"]
except KeyError:
# I don't think it's possible that this path in the user's data
# wouldn't exist but if it doesn't, log it so that it can be
# investigated
print "Facebook user with no/unexpected friends data"
fb_friends = []
fb_user_ids = map(itemgetter("id"), fb_friends)
result = yield sundowner.data.users.\
read_native_user_ids_from_facebook_user_ids(fb_user_ids)
FriendsCache.put(user_id, result)
raise tornado.gen.Return(result)
def get_friends(user_id):
"""Return the list of Facebook friends of user `user_id` who are also
using the service.
The friends list is a list of native user IDs (not Facebook user IDs),
each an object of type ObjectId.
A caching layer sits before the database.
"""
result = FriendsCache.get(user_id)
if result is None:
user = yield sundowner.data.users.read(user_id)
try:
fb_friends = user["facebook"]["friends"]["data"]
except KeyError:
# I don't think it's possible that this path in the user's data
# wouldn't exist but if it doesn't, log it so that it can be
# investigated
print "Facebook user with no/unexpected friends data"
fb_friends = []
fb_user_ids = map(itemgetter("id"), fb_friends)
result = yield sundowner.data.users.\
read_native_user_ids_from_facebook_user_ids(fb_user_ids)
FriendsCache.put(user_id, result)
raise tornado.gen.Return(result)
