Commit Graph

314 Commits

Author SHA1 Message Date
Vaibhav 268c25e95f streams: Prevent members from creating admin-only streams.
This a check on server side to verify whether the user sending request
to create stream where only admins can post is an admin or not; Raises
a JsonableError when the user is not the realm admin.
2019-01-24 10:51:45 -08:00
Rohitt Vashishtha 988af1c803 markdown: Use silent mentions in Notification Bot messages.
Messages converted:
- new stream
- rename stream
- new user signup
2019-01-16 16:01:06 -08:00
Hemanth V. Alluri 58fa142c7d subscriptions: Update the color validator to check_color.
Previously, the subscription color attribute had a validator of
check_string, but this is insufficient. Hence this commit update the
validator used to check_color. Fixes #11268.
2019-01-14 10:16:42 -08:00
sahil839 4dcccf32f8 zerver: Add feature for notification at rename of a stream.
Feature of sending notification to the stream using notification bot
is added. user_profile is also passed to do_rename_stream for using
the name of user who renamed the stream in notification.
Notification is sent to the stream using
internal_send_stream_message in do_rename_stream.

Fixes #11034.
2019-01-07 19:13:01 -08:00
Tim Abbott e603237010 email: Convert accounts code to use delivery_email.
A key part of this is the new helper, get_user_by_delivery_email.  Its
verbose name is important for clarity; it should help avoid blind
copy-pasting of get_user (which we'll also want to rename).
Unfortunately, it requires detailed understanding of the context to
figure out which one to use; each is used in about half of call sites.

Another important note is that this PR doesn't migrate get_user calls
in the tests except where not doing so would cause the tests to fail.
This probably deserves a follow-up refactor to avoid bugs here.
2018-12-06 16:21:38 -08:00
Steve Howell 4b38260a27 tests: Fix message.subject references. 2018-11-12 15:47:11 -08:00
Vishnu Ks d8ddb7f69b settings: Remove reminder-bot from REALM_INTERNAL_BOTS. 2018-10-02 11:12:07 -07:00
Steve Howell 44756a326d tests: Test duplicate default stream/groups.
This also gets us to 100% line coverage
for actions.py.
2018-08-22 16:52:30 -07:00
Steve Howell a6bc3886e6 refactor: Extract send_peer_remove_event().
This prevents leaking some variables into an already
cluttered function.

We also add test coverage for what's now an
early-exit condition in the new function--we exempt
public MIT streams from these events.
2018-08-21 11:23:40 -07:00
Steve Howell 092bb6a728 tests: Refactor test_bulk_subscribe_MIT().
We extract a couple local vars to avoid
repeating ourself.

We also explictly set the stream as a zephyr stream.
2018-08-21 11:23:40 -07:00
zhoufeng1989 d5f752df84 tests: Tests query count when creating stream with subscriptions API.
These test cases are used to test the cost of stream creation.
Three scenarios of stream creation are covered:
1) create a public stream;
2) create a private stream;
3) create a public stream with announce=true when there is a notification stream.

Fix: #4804.
2018-08-17 08:58:38 -07:00
Steve Howell fb283ac672 tests: Test JsonableError in lookup_default_stream_groups(). 2018-08-17 08:14:42 -07:00
Steve Howell 75e297daf2 tests: Get line coverage for empty streams results.
We have defensive code in functions for combinations
of arguments and/or inputs that doesn't happen
in practice, buts this gets us some line coverage.
2018-08-17 08:14:42 -07:00
Steve Howell 96c6af1249 tests: Test include_default option for /json/streams. 2018-08-17 08:14:42 -07:00
Steve Howell 05763dcb1d tests: Cover stream name collisions in deactivation test. 2018-08-11 14:51:26 -07:00
Yashashvi Dave 6e136be975 default stream: Allows admins to remove any default stream.
This fixes a bug where administrators couldn't remove private
unsubscribed streams from the "default streams" list, because
access_stream_by_name didn't give them access to the stream object.
2018-08-07 13:28:30 -07:00
Tim Abbott 6e55342e21 bulk_remove_subscriptions: Pass client object in.
We need the client object to pass on to do_mark_stream_as_read.
2018-08-01 16:48:31 -07:00
Tim Abbott 00f6fc2559 subs: Limit editing subscribers for waiting period users.
Does not let you subscribe other users if you are a guest or a
waiting period user.

Co-authored-by: Shubham Padia <shubhamapadia@gmail.com>
2018-07-30 12:12:51 -07:00
Shubham Padia 1015b2fc44 subs: Refactor and add tests for UserProfile.can_create_streams.
This is a preparatory refactor for adding
UserProfile.can_subscribe_other_users.
Although there existed a test for limiting users from creating
streams at `test_subs.test_user_settings_for_adding_streams`,
it did not test the logic inside can_add_streams, tests have
been added to solve that issue.
2018-07-30 12:12:51 -07:00
Rohitt Vashishtha d83ef30904 notification-bot: @-mention the user subscribing you to a stream. 2018-07-30 09:50:48 -07:00
Rishi Gupta 0573c17819 stream settings: Set weekly traffic to None instead of -1 for new streams.
The only place this gets used seems to be subscription.handlebars, where a
value of None (or null) is probably less broken-seeming than -1 anyway.
2018-07-23 16:43:15 -07:00
Sarah d1cda29fb4 API: Add stream email notification setting plumbing.
This is all the plumbing that makes it possible to enable the
stream_email_notifications setting via the Zulip API.  The flag still
doesn't do anything yet, but this is a nice checkpoint along the way
to implementing this feature.
2018-07-12 13:39:14 +05:30
Eeshan Garg e1e4d523aa Replace remaining user-facing occurences of the term "invite-only".
Fixes #9611.
2018-06-27 12:34:29 -07:00
Rishi Gupta 2de9029a69 stream settings: Add tests for weekly stream traffic calculation. 2018-06-23 12:48:15 -07:00
Rishi Gupta 4f8c44a019 notifications: Simplify notification messages for new subscriptions.
We're adding more stream types, e.g. splitting private streams into
with/without shared history, adding publicly-archived streams, adding
announce-only streams, etc. So maintaining this text is going to get more
complicated over time.

Also, the right place to explain this stuff is in the stream header, or near
the z-in-a-circle.

This commit also adds translation tags to the messages.
2018-06-20 07:53:10 -04:00
Shubham Dhama b0bfb6b153 streams: Hide create stream UI from guest users. 2018-06-16 06:33:14 -07:00
Shubham Dhama 01555e8772 streams: Handle guest user ids for stream settings changes' events. 2018-06-04 11:35:37 -07:00
Shubham Dhama 8e2337509d streams: Hide public streams & subscribers from guest users.
The main change here is making can_access_public_streams
2018-06-02 08:39:39 -07:00
Shubham Dhama ca02143074 test_subs: Fix typos in test_previously_subscribed_private_streams. 2018-06-02 08:06:45 -07:00
Shubham Padia bb8ad15fa9 streams: Set is_announcement_only when creating streams.
Adds is_announcement_only to create_stream_if_needed and
add_subscriptions_backend.
2018-05-30 14:17:33 -07:00
Eeshan Garg 0a1b429d04 settings: Remove PRIVATE_STREAM_HISTORY_FOR_SUBSCRIBERS.
Now that we have a UI for this feature, we don't need this setting
anymore.
2018-05-24 17:18:14 -07:00
Aditya Bansal 8cfb437677 provision: Don't run create_realm_internal_bots management command.
We essentially stop running create_realm_internal_bots during
every provisioing and move its operations to run from populate db.
In fact to speed things up a bit we actually make populate db call the
funcs which create_realm_internal_bots calls behind the scenes.

Fixes: #9467.
2018-05-23 13:34:52 +05:30
Tim Abbott 2609274719 streams: Don't allow adding deactivated users to streams.
This query was incorreclty not checking whether a user was deactivated
before managing their subscriptions.

This isn't an important bug, but should prevent some weird corner
cases (like trying to send a notification PM to a deactivated user,
which fails).
2018-05-20 19:17:15 -07:00
Steve Howell 4332fd64f7 Add submessages to message payloads. 2018-05-16 15:13:33 -07:00
Tim Abbott 495104bd56 mypy: Clean test_subs.py of mypy strict-optional errors.
Most of this is just asserting that the sub_dict return value from
access_stream_by_id is not None in the cases where it shouldn't be,
but additionally, we also need to pass a function into
validate_user_access_to_subscribers_helper (in this case, just `lambda:
True` works fine)
2018-05-16 12:09:52 -07:00
Tim Abbott ee0f1992bf lint: Fix lint errors in recently merged tests. 2018-05-15 20:07:33 -07:00
Baron Chandler 1e4f54560a actions: Ensure validate_user_access_to_subscribers_helper raises on invalid params. 2018-05-15 19:14:43 -07:00
Baron Chandler 52d53f4a81 test_subs: Ensure gather_subscriptions_helper excludes deleted streams. 2018-05-15 10:11:32 -07:00
Shubham Padia 897ed17f0c api: Allow realm_admins to make a stream announcement_only. 2018-05-13 09:11:51 -07:00
Aditya Bansal 5416d137d3 zerver/tests: Change use of typing.Text to str. 2018-05-12 15:22:39 -07:00
Tim Abbott 508dc5b6ed decorators: Add new decorators for guest users.
These decorators will be part of the process for disabling access to
various features for guest users.

Adding this decorator to the subscribe endpoint breaks the guest users
test we'd just added for the subscribe code path; we address this by
adding a more base-level test on filter_stream_authorization.
2018-05-04 10:25:52 -07:00
Tim Abbott 8b26f912af streams: Limit access to public streams for guest users.
With most of the tests tests written by Shubham Dhama.
2018-05-04 09:47:58 -07:00
Tim Abbott 594451707d check_capped_string: Clean up corner case.
We were rejecting strings of length equal to the max.

While we're at it, fix the unnecessary period in the error message,
which doesn't align with similar validators.
2018-05-03 14:30:03 -07:00
Yashashvi Dave 7e9ccead2e stream settings: Fix server error on long stream description.
Add backend validations to check stream description length.
2018-04-30 10:11:23 -07:00
Eeshan Garg 057ff9c91e models: Add Stream.history_public_to_subscribers.
This commit adds a new field history_public_to_subscribers to the
Stream model, which serves a similar function to the old
settings.PRIVATE_STREAM_HISTORY_FOR_SUBSCRIBERS; we still use that
setting as the default value for new streams to avoid breaking
backwards-compatibility for those users before we are ready with an
actual UI for users to choose directly.

This also comes with a migration to set the value of the new field for
existing streams with an algorithm matching that used at runtime.

With significant changes by Tim Abbott.

This is an initial part of our efforts on #9232.
2018-04-28 22:54:04 -07:00
Shubham Dhama 26d2ffa821 populate_db: Add new user of "guest" type.
The purpose of this user is to act as a guest.
(This is a preliminary step in adding the guest type of user
and is a part of #8385.)
2018-04-20 16:20:00 -07:00
Roman Godov d99758129e subs: Notify organization admins when private streams are renamed.
This commit sends the event for renaming of a private stream to
organization admins of the realm, in addition to the obvious list of
subscribers of the private stream.

Normally, admins can manage a private stream (e.g. unsubscribing a
user).  But when the admin tried to unsubscribes a user from a
previously renamed stream, we previously were throwing a JS error, as
the webapp hadn't been notified about the new stream name.

Fixes #9034.
2018-04-19 22:00:18 -07:00
Greg Price e792fc6c07 spelling: Correctly write "cannot".
None of these errors were user-facing; mainly in comments, plus
one bit of internal docs and a developer tool.
2018-04-02 15:36:31 -07:00
Jack Weatherilt d857f26cd3 refactoring: Remove unused assignment on ensure_stream.
There were two instances of `ensure_stream` being called and assigned to
a variable with the variable not being used elsewhere. pyflakes picked
up on this (where it didn't in the previous version likely due to tuple
unpacking), so the the variable assignment has been replaced with a call
to `ensure_stream`.
2018-03-21 16:47:52 -07:00
Jack Weatherilt 3396cfc2ef refactoring: Replaced occurences of create_stream_if_needed.
Issue #2088 asked for a wrapper to be created for
`create_stream_if_needed` (called `ensure_stream`) for the 25 times that
`create_stream_if_needed` is called and ignores whether the stream was
created. This commit replaces relevant occurences of
`create_stream_if_needed` with `ensure_stream`, including imports.

The changes weren't significant enough to add any tests or do any
additional manual testing.

The refactoring intended to make the API easier to use in most cases.
The majority of uses of `create_stream_if_needed` ignored the second
parameter.

Fixes: #2088.
2018-03-21 16:47:36 -07:00
YJDave 0281079a39 stream settings: Send all private streams subs to realm admins on load.
Tweaked by tabbott to simplify the conditionals in actions.py.

Fixes #8695.
2018-03-16 12:26:56 -07:00
YJDave 72a440a86d stream settings: Fix error in real time sync in subs add/remove event.
Currently, when other private stream subscriber add realm admin to
stream, new copy private stream is created in realm admin's streams.
Which resulted in error, cause there are two similar stream element
in stream settings.

If new subscriber is added to private stream, we first send them
stream `create` event, cause private stream are not visible until
user don't get subscribed at least once. But realm admins can now
always access private stream, so when realm admin is subscribed to
stream, realm admin get stream `create` event even if stream already
exist in on realm admin client side.

Fix this by extracting realm admins from stream `create` event on
`add` subscription operation and sending private stream `create`
event to all realm admins on stream creation operation.

Fixes #8695
2018-03-16 12:22:06 -07:00
YJDave 6226a48355 tests: Use iago user in case of admin in `attempt_unsubscribe_of_principal`.
In `attempt_unsubscribe_of_principal` function in `test_subs.py`, use
iago user if `is_admin` is true, instead of making the hamlet user
an admin.
2018-03-14 09:21:14 -07:00
YJDave 93ee0aace7 stream settings: Allow realm admins to remove others from any stream.
This will allow realm admins to remove others from private stream to
which the realm administrator is not subscribed; this is important for
managing those streams, because previously nobody could remove users
from private streams that didn't have any realm administrators
subscribed.
2018-03-13 14:59:09 -07:00
YJDave 2031118545 stream settings: Allow realm admins to access all private stream subs.
This will allow realm admins to access subscribers of unsubscribed
private stream.  This is a preparatory commit for letting realm admins
remove those users.
2018-03-13 14:59:09 -07:00
YJDave 37f9d5c193 stream settings: Allow realm admins to update any stream name & description.
This will allow realm admins to update the names and descriptions of
private streams even if they are not subscribed, which fixes the buggy
behavior that previously nobody could(!).
2018-03-13 14:59:09 -07:00
YJDave 382ac24151 create stream: Fix real time sync bug in private stream creation.
If new private stream is created by realm admin without realm admin
subscribed to it, then it doesn't automatically add created stream to
realm admin's stream list. We have to reload the browser to get newly
created stream in stream list. Cause private stream creation event is
only sent to the subscribed users to private stream, so even if realm
admin is acting user, they don't get creation event.

We should send private stream creation event to realm admin users along
with subscribed user to stream, as realm admins can access unsubscribed
private streams.

Tweaked by tabbott to fix various typos and clean up the code.
2018-03-09 18:35:12 -08:00
Tim Abbott e2a6541133 i18n: Fix use of 'realm administrator' in translated strings.
These are user-facing and thus should refer to being an "organization
administrator".
2018-03-07 17:15:29 -08:00
Archana BS c7650c0d9d streams: send data for recent streams traffic to frontend.
Significantly edited by Tim Abbott and Vishnu Ks.
2018-03-04 13:24:53 -08:00
Steve Howell 46a49777c4 Add stream ids to urls for stream-related narrows.
This commit prefixes stream names in urls with stream ids,
so that the urls don't break when we rename streams.

strean name: foo bar.com%
before: #narrow/stream/foo.20bar.2Ecom.25
after: #narrow/stream/20-foo-bar.2Ecom.25

For new realms, everything is simple under the new scheme, since
we just parse out the stream id every time to figure out where
to narrow.

For old realms, any old URLs will still work under the new scheme,
assuming the stream hasn't been renamed (and of course old urls
wouldn't have survived stream renaming in the first place).  The one
exception is the hopefully rare case of a stream name starting with
something like "99-" and colliding with another stream whose id is 99.

The way that we enocde the stream name portion of the URL is kind
of unimportant now, since we really only look at the stream id, but
we still want a safe encoding of the name that is mostly human
readable, so we now convert spaces to dashes in the stream name.  Also,
we try to ensure more code on both sides (frontend and backend) calls
common functions to do the encoding.

Fixes #4713
2018-02-19 09:03:11 -08:00
Greg Price ca1129dea3 Revert "Streams: Disallow certain markdown characters in stream names."
This reverts commit dd1b14378b.

Deleted a conflicted test entirely.
2018-02-05 16:55:21 -08:00
Shubham Dhama 9a75a10d48 tests: Test invalid "default stream group" name. 2018-02-05 16:33:42 -08:00
Umair Khan 41a867ec45 tests: Fix non-deterministic behavior. 2018-01-31 12:07:36 -08:00
YJDave 8905744bb1 stream settings: Add period at the end of error messages. 2018-01-19 13:05:43 -05:00
Alena Volkova 26eb23afc7 tests: Replace api_auth usages with auth methods in zerver/tests. 2017-12-18 09:24:09 -05:00
Umair Khan 07961611b2 test_create_update_and_remove_default_stream_group: Fix flake. 2017-12-14 05:35:54 -05:00
Umair Khan b98c5c6d45 test_multi_user_subscription: Fix flake. 2017-12-14 05:35:54 -05:00
Rhea Parekh dd1b14378b Streams: Disallow certain markdown characters in stream names. 2017-12-12 10:04:31 -06:00
Tim Abbott b2cb443d24 subs: Fix clearing unread counts when leaving private streams.
Because we use access_stream_by_id here, and that checks for an active
subscription to interact with a private stream, this didn't work.

The correct fix to add an option to active_stream_by_id to accept an
argument indicating whether we need an active subscription; for this
use case, we definitely do not.
2017-11-29 14:40:08 -08:00
Vishnu Ks b9bc1c2b33 Eliminate get_user_profile_by_email from test_classes. 2017-11-26 15:47:56 -08:00
rht 0260ba82ca zerver/tests: Use python 3 syntax for typing (part 4). 2017-11-21 22:01:19 -08:00
Vishnu Ks 766511e519 actions: Mark all messages as read when user unsubscribes from stream.
This fixes a bug where, when a user is unsubscribed from a stream,
they might have unread messages on that stream leak.  While it might
seem to be a minor problem, it can cause significant problems for
computing the `unread_msgs` data structures, since it means we need to
add an extra filter for whether the user is still subscribed, either
in the backend or in the UI.

Fixes #7095.
2017-11-21 20:09:17 -08:00
Tim Abbott 1e334f41ed test_subs: Fix nondeterministic failures in default stream tests.
Here we sort the streams before comparing them.
2017-11-17 15:32:42 -08:00
Tim Abbott 8dc82f97c7 python: Wrap long def lines in test files.
We don't have our linter checking test files due to ultra-long strings
that are often present in test output that we verify.  But it's worth
at least cleaning out all the ultra-long def lines.
2017-11-16 22:00:53 -08:00
rht 4f5b1c0a5a zerver/tests: Use python 3 syntax for typing in most files. 2017-11-16 21:52:01 -08:00
Vishnu Ks d2555e8769 api: Add support to change name of default stream groups. 2017-11-14 14:41:42 -08:00
Vishnu Ks 2af249dd5d api: Add description attribute to default stream group. 2017-11-14 14:41:42 -08:00
Vishnu Ks f45ba7de93 api: Pass group id instead of name to default stream group api. 2017-11-14 14:41:42 -08:00
Vishnu Ks f44b60a150 Implement API for default stream groups. 2017-11-10 16:05:36 -08:00
rht ec5120e807 refactor: Remove six.moves.zip import. 2017-11-07 10:46:42 -08:00
rht 19bd335cbb Change urllib import to be Python 3-specific. 2017-11-07 10:46:42 -08:00
rht dcc831f767 refactor: Replace all __unicode__ method with __str__.
Close #6627.
2017-11-02 11:01:47 -07:00
Steve Howell faba34dae4 Simplify bulk_remove_subscriptions().
We extract get_bulk_stream_subscriber_info() from this
function to remove some of the complexity.  Also, in that
new function we avoid a hop to the database by querying
on stream ids instead of recipient ids.  The query that
gets changed here does require a join to the recipient
table (to get the stream id), so it's a little bit of a
tradeoff.
2017-10-30 16:33:50 -07:00
Steve Howell 2d0daffbc0 tests: Verify query counts for stream deactivation. 2017-10-29 18:36:35 -07:00
Steve Howell 126e14d1de Add zerver/lib/stream_subscription.py.
The first method we extract to this library is
get_active_subscriptions_for_stream_id().

We also move num_subscribers_for_stream_id() to here, which
is slightly annoying (having the method on Stream was nice)
but avoids some circular dependency issues.
2017-10-29 18:36:35 -07:00
Steve Howell bb42004464 tests: Fix send_message calls in test_subs.py. 2017-10-28 10:20:59 -07:00
Steve Howell 635675fe48 Reduce queries needed for sending messages.
In do_send_messages, we only produce one dictionary for
the event queues, instead of different flavors for text
vs. html.  This prevents two unnecessary queries to the
database.

It also means we only put one dictionary on the "message"
event queue instead of two, albeit a wider one that has
some values that won't be sent to the actual clients.

This wider dictionary from MessageDict.wide_dict is also
used for the `feedback_messages` queue and service bot
queues.  Since the extra fields are possibly useful down
the road, and they'll just be ignored for now, we don't
bother to remove them.  Also, those queue processors won't
have access to `content_type`, which they shouldn't need.

Fixes #6947
2017-10-26 16:35:28 -07:00
Steve Howell b851020b1e Excluded topic-muted users from stream push notifications.
Fixes #7059
2017-10-23 17:26:15 -07:00
rht 691598a88b py3: Remove "from six.moves import range".
This is no longer required, since in Python 3, this is what the range
built-in does.
2017-10-17 23:28:14 -07:00
Steve Howell a6ad9a6d7c Add is_zephyr to the Stream model.
Add this field to the Stream model will prevent us from having
to look at realm data for several types of stream operations, which
can be prone to either doing extra database lookups or making
our cached data bloated.

Going forward, we'll set stream.is_zephyr to True whenever the
realm's string id is "zephyr".
2017-10-11 16:15:56 -07:00
Steve Howell 7c726a5e77 Remove sender names from the message cache.
This removes sender names from the message cache, since
they aren't guaranteed to be valid, and they're inexpensive
to add.

This commit will make the message cache entries smaller
by removing sender___full_name and sender__short_name
fields.

Then we add in the sender fields to the message payloads
by doing a query against the unique sender ids of the
messages we are processing.

This change leads to 2 extra database hops for most of
our message-related codepaths.  The reason there are 2 hops
instead of 1 is that we basically re-calculate way too
much data to get a no-markdown dictionary.
2017-10-11 11:37:16 -07:00
Steve Howell 12e65eb21c Use stream ids in various tests.
This commit prepares us to introduce a StreamLite class. For
these tests, we don't care about the actual contents of the
Stream, just the right stream is there.
2017-10-08 20:18:34 -07:00
Steve Howell 3e6bfe1b23 Use user_ids, not emails, for bulk stream operations.
We now return user_ids for subscribers to streams in add-stream
events.  This allows us to eliminate the UserLite class for
both bulk adds and bulk removes.  It also simplifies some JS
code that already wanted to use user_ids, not emails.

Fixes #6898
2017-10-08 12:31:12 -07:00
Tim Abbott d5c2508858 tests: Remove unnecessary @slow decorators.
This is part of addressing #1478.
2017-10-06 15:17:34 -07:00
rht daef6a7dbc zerver/tests: Remove `import six`. 2017-09-27 17:07:40 -07:00
rht 1e87a4b68c zerver/tests: Remove absolute_import. 2017-09-27 10:00:39 -07:00
Steve Howell 428d3027c2 Only require ids for finding DefaultStream objects.
We don't need full Realm objects to find DefaultStream
objects for a realm.  So now a few functions related to
adding/removing default streams use realm_id for lookups.

Similarly, we don't need a full Stream object to find
out if a stream exists in DefaultStream, so we do id
lookups there as well.

This sets us up to use thinner objects in callers.
2017-09-20 10:31:33 -07:00
Steve Howell 8ad7133351 Cache active_user_ids() more directly.
We now have a dedicated cache for active_user_ids() that only
stores a list of user_ids.

Before this commit, active_user_ids() used a cache of UserProfile
dictionaries, so it incurred unnecessary deserialization costs for
all the user fields that it sliced away in a list comprehension.

Because the cache is skinnier here, we also need to invalidate it
less frequently.  Basically, all we care about is new users, realm
deactivations, and user deactivations.

It's hard to measure how much this will improve performance, because
the speedup for any operation here is pretty minor, but we use this
function a lot, so hopefully it will make the overall system more
healthy.
2017-09-20 10:31:33 -07:00
Steve Howell cad3a35b6a Only require realm_id for active_user_ids().
This is mostly a preparatory commit for an upcoming optimization
related to stream data, but it probably does save us an
occasional DB hop to the realm table.
2017-09-20 10:31:33 -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