4 Commits

Author	SHA1	Message	Date
rht	e311842a1b	zerver/lib: Remove inheritance from object.	2017-11-06 08:53:48 -08:00
rht	2e12fe5e2e	zerver/lib: Remove print_function.	2017-09-27 18:05:45 -07:00
rht	f43e54d352	zerver/lib: Remove absolute_import.	2017-09-27 10:00:39 -07:00
Steve Howell	1553dc00e0	Introduce StreamRecipient class. ... This class encapsulates the mapping of stream ids to recipient ids, and it is optimized for bulk use and repeated use (i.e. it remembers values it already fetched). This particular commit barely improves the performance of gather_subscriptions_helper, but it sets us up for further optimizations. Long term, we may try to denormalize stream_id on to the Subscriber table or otherwise modify the database so we don't have to jump through hoops to do this kind of mapping. This commit will help enable those changes, because we isolate the mapping to this one new class.	2017-09-15 10:44:32 -07:00