zulip/zephyr/lib/message_cache.py

26 lines
973 B
Python

from zephyr.models import Message
from zephyr.lib.cache import cache_with_key, djcache
def message_cache_key(message_id):
return "message:%d" % (message_id,)
def cache_save_message(message):
djcache.set(message_cache_key(message.id), (message,), timeout=3600*24)
@cache_with_key(message_cache_key)
def cache_get_message(message_id):
return Message.objects.select_related("client", "sender").get(id=message_id)
# Called on Tornado startup to ensure our message cache isn't empty
def populate_message_cache(count):
max_message_id = 0
min_message_id = 0
messages_for_memcached = {}
for m in Message.objects.select_related("sender", "client").all().order_by("-id")[0:count]:
max_message_id = max(m.id, max_message_id)
min_message_id = min(m.id, min_message_id)
messages_for_memcached[message_cache_key(m.id)] = (m,)
djcache.set_many(messages_for_memcached, timeout=3600*24)
return max_message_id, min_message_id