diff options
Diffstat (limited to 'main/utils.py')
| -rw-r--r-- | main/utils.py | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/main/utils.py b/main/utils.py index e7e47c53..b7cb19f4 100644 --- a/main/utils.py +++ b/main/utils.py @@ -72,7 +72,7 @@ def refresh_latest(**kwargs): cache.set(cache_key, None, INVALIDATE_TIMEOUT) -def retrieve_latest(sender): +def retrieve_latest(sender, latest_by=None): # we could break this down based on the request url, but it would probably # cost us more in query time to do so. cache_key = CACHE_LATEST_PREFIX + sender.__name__ @@ -80,8 +80,9 @@ def retrieve_latest(sender): if latest: return latest try: - latest_by = sender._meta.get_latest_by - latest = sender.objects.values(latest_by).latest()[latest_by] + if latest_by is None: + latest_by = sender._meta.get_latest_by + latest = sender.objects.values(latest_by).latest(latest_by)[latest_by] # Using add means "don't overwrite anything in there". What could be in # there is an explicit None value that our refresh signal set, which # means we want to avoid race condition possibilities for a bit. |