Storing the user name or IP in every row in large tables like revision
and logging takes up space and makes operations on these tables slower.
This patch begins the process of moving those into one "actor" table
which other tables can reference with a single integer field.
A subsequent patch will remove the old columns.
Bug: T167246
Depends-On: I9293fd6e0f958d87e52965de925046f1bb8f8a50
Change-Id: I8d825eb02c69cc66d90bd41325133fd3f99f0226
This allows CommentStore to be added to MediaWikiServices
without the need of an aditional Factory.
This change includes a compatability layer to allow the behaviour
from 1.30 to continue to be used while deprecated.
CommentStore::newKey has been deprecated.
Keys are now passed into the public methods of CommentStore
where needed.
The following CommentStore methods have had their signatures changed
to introduced a $key parameter, but when used in conjunction with
CommentStore::newKey behaviour will remain unchanged:
* CommentStore::getFields
* CommentStore::getJoin
* CommentStore::getComment
* CommentStore::getCommentLegacy
* CommentStore::insert
* CommentStore::insertWithTemplate
Change-Id: I3abb62a5cfb0dcd456da9f4eb35583476ae41cfb
