This is the preferred method as it enforces read-only mode for DB_REPLICA
and handles LoadBalancer::reuseConnection() calls automatically.
Change-Id: Iab9439ba8e0810fa14c302661ed7a3534f6bfc0d
Methods replaced are Linker::link() and ::linkKnown() and ::getDefaultInstance
in SkinFactory with mediawiki services.
Change-Id: Ifc170abc958add28a2fe08aa0c44af83c6f7cad8
Without it, Special:UserRights sometimes fails with a bogus conflict error
just because groups are somehow ordered differently.
Bug: T164211
Change-Id: I9c7f51338e0849d9e134dc780eb13c542960c655
Each expired row has to be fetched from the user_groups table, deleted
from that table and added to the user_former_groups table. Per Jaimes
request, let's not do this for all rows at once but for smaller chunks
and wait for replication to catch up after each chunk has been
processed. In addition the function to purge the expired rows now sets a
lock so that there won't be multiple concurrent runs.
Also, cleaning this table up isn't urgent and thus should be done in a
job and not a deferred update, so let's move it there.
Bug: T176754
Change-Id: I671d4b9d09677a2f474477ba7fea33a44d6318aa
This feature flag was added to comply with WMF's schema change policy.
It is no longer needed now that the feature is enabled on WMF sites.
External MW installations will run update.php or manually do DB updates
as required before upgrading MW.
Bug: T162517
Change-Id: I5b532d79fd1e8b178490cf2617499ae62967de2c
This patch adds an ug_expiry column to the user_groups table, a timestamp
giving a date when the user group expires. A new UserGroupMembership class,
based on the Block class, manages entries in this table.
When the expiry date passes, the row in user_groups is ignored, and will
eventually be purged from the DB when UserGroupMembership::insert is next
called. Old, expired user group memberships are not kept; instead, the log
entries are available to find the history of these memberships, similar
to the way it has always worked for blocks and protections.
Anyone getting user group info through the User object will get correct
information. However, code that reads the user_groups table directly will
now need to skip over rows with ug_expiry < wfTimestampNow(). See
UsersPager for an example of how to do this.
NULL is used to represent infinite (no) expiry, rather than a string
'infinity' or similar (except in the API). This allows existing user group
assignments and log entries, which are all infinite in duration, to be
treated the same as new, infinite-length memberships, without special
casing everything.
The whole thing is behind the temporary feature flag
$wgDisableUserGroupExpiry, in accordance with the WMF schema change policy.
The opportunity has been taken to refactor some static user-group-related
functions out of User into UserGroupMembership, and also to add a primary
key (ug_user, ug_group) to the user_groups table.
There are a few breaking changes:
- UserRightsProxy-like objects are now required to have a
getGroupMemberships() function.
- $user->mGroups (on a User object) is no longer present.
- Some protected functions in UsersPager are altered or removed.
- The UsersPagerDoBatchLookups hook (unused in any Wikimedia Git-hosted
extension) has a change of parameter.
Bug: T12493
Depends-On: Ia9616e1e35184fed9058d2d39afbe1038f56d7fa
Depends-On: I86eb1d5619347ce54a5f33a591417742ebe5d6f8
Change-Id: I93c955dc7a970f78e32aa503c01c67da30971d1a
