Trying to check whether a Django model object is inside a set of other
Django models is not correct in general, e.g.:
UserProfile.objects.only("id").get(id=17) in set([UserProfile.objects.get(id=17)])
returns False.
This bug appears twice in the function, once when computing which
users were mentioned and again when pushing the flags through to
Tornado.
(imported from commit b09ed550258f9df2611e1b0a60f87c48a51830f8)
(Before it had been disabled only on prod/staging, but we are
removing it everywhere, motivated by making tests run faster.
In particular, the call to embedly_client.is_supported() was
expensive, as it went over the Internet.)
(imported from commit ea12bf6e7ae84ce7e8023a0d314ecc4c07cbc0a8)
Whereas `SITE_ROOT` referred to the directory where settings.py is
located, *all* actual uses of `SITE_ROOT` were joining it with `..` to
get the root of the git checkout, a much more useful value.
`DEPLOY_ROOT` now represents the root of the git checkout.
(imported from commit 351437f9a5801e5c7c08a3a97619e863144e5cc8)
Previously we had an issue that every other update_active_status
request for a particular realm would result in doing the expensive
query to compute the list of active users in that realm. It turned
out this was because on every update_active_status request, we'd queue
an event that would have the effect of clearing the cache, even if
nobody's tatus changed. This fixes that issue, by only clearing the
cache for a realm if someone's status actually changed (or the 60s
timeout expires).
(imported from commit d5b829fe255a31c8cecb58458738f1e72a2cf6de)
memcached stores objects sent to it using pickling, which is very
slow. We work around this by sending memcached strings (i.e. JSON
dumps); pickling doesn't slow things down too much if all it is
getting is a string.
(imported from commit 0f0e534182eccb76c5731198e05a9324a1cef316)
This saves something like 15ms on our 1000 message get_old_messages
queries, and will save even more when we start sending JSON dumps into
our memcached system.
We need to install python-ujson on servers and dev instances before
pushing this to prod.
(imported from commit 373690b7c056d00d2299a7588a33f025104bfbca)
We had a few bugs where we were using a raw Django database query to
get a UserProfile object. This might seem OK, but going through
memcached is more efficient, and also guarantees that we get back the
.select_related() version of the object, so that if we later access
related fields like user_profile.realm.domain, we don't end up doing a
second database query as well.
Fixing these should in practice save a substantial number of database
queries on handling update_status_list requests, which happen very
often and access user_profile.realm.domain.
(imported from commit 0a2027da1b5bbc7a4f6c6927aca498530d7a4977)
The refactoring to use the cache_get() method incorrectly didn't
remove the addition of KEY_PREFIX inside cache_with_key. The result
was that the KEY_PREFIX was being added twice, once by cache_with_key
and again inside cache_get.
This had the impact of causing pointer saves to not take effect,
because our attempts to update the memcached cache when we save the
UserProfile object were using the correct cache key, but the actual
code reading values out of the caceh wasn't.
(imported from commit dcea000833f00622bdc0249488de3b186a7417b2)
Otherwise code paths that use those keys, like get_old_messages, will
incorrectly use the prefix-included keys.
This bug in our KEY_PREFIX system results in our memcached caching for
get_old_messages always missing.
(imported from commit 506c13e06d6f266596ead0b381c324c256e576c3)
Wrapping render_to_response never actually worked correctly. On the
login page, mixpanel_token would be missing, but we wouldn't get an
error because it is surrounded by double quotes, which meant that it
was still valid Javascript.
(imported from commit 820ee42fab8f679983e5a3a4309a2feaf690f20f)
Show user-uploaded avatars on the website for users who have
UserProfile.avatar_source == 'U'. (Continue to show gravatars
for other users.) This includes the home page, the visible-phone
div, and the settings page.
This fix does NOT address a few things:
* There is no GUI to actually upload user images yet on the website.
* The !gravatar syntax in bugdown will continue to show gravatar images
only.
* We are not changing identicon behavior.
(imported from commit 9f5ac0bbe21ba56528048233aab2430e4dd431aa)
The new file can't be called logging.py because then it would be
annoying to import the system logging module within it.
(imported from commit 71d116e4be98d45b09dda049a43142a82647b727)
I've tried to do this in a way that's scalable and easily configured,
so that we can add new such filters for customers on-demand without
needing to add anything other than a bit of configuration.
Once we're confident in the arguments to this system, I think we'll
want to move the regular expression lists into the database so that we
don't need to do a prod push to modify the regular expression lists.
The initial set of regular expressions are:
(1) Linkifying e.g. "trac #224" in the Humbug realm, so we're exercising this code.
(2) The various ticket number things CUSTOMER7 uses for the CUSTOMER7 realm.
(imported from commit 992b0937b9012c15a7c2f585eb0aacb221c52e01)
Some cache keys used by Django (like sessions) will not have the key
prefixes, but those values shouldn't change across most restarts.
(imported from commit 2fe61028111fe9d5700432214a611b3341412654)
Diff Match Patch provides more human-readable diffs. For example,
try replacing "mouse" with "sofas".
(imported from commit 7ced81202ce85d5ef69888c59912e3e44c38cfc8)
I didn't use red and green for fear of it not being visible to
color-blind users. We may need to tweak the colors.
(imported from commit 59c4f1dac549a248783e4c3b3ec472d8cb690df5)
I would really like to parse the HTML we produce from the library to
ensure that we don't generate malformed-HTML. This is unfortunately
hard because we both want pretty strict parsing and we want to parse
html5 fragments. For now, we just do a basic sanity check.
We also may want to switch to Google Diff-Match-Patch, as that can
clean up the resulting diffs.
(imported from commit 3772f92135cfd7423c335335f861f2c11462a8db)
Kevin Mehall
Tim Abbott
Steve Howell
Scott Feeney
Zev Benjamin
Leo Franchi
Jessica McKellar