WRITE_NEW mode seems to be working well on Wikimedia sites. Let's change
the default to MIGRATION_NEW so existing installs and Wikimedia CI will
start using the new code rather than the old.
This also fixes some unit tests that were broken with MIGRATION_NEW, and
updates some that were forcing MIGRATION_OLD to force MIGRATION_NEW
instead.
Bug: T166733
Change-Id: I7bf4ad0105dd1f6cc49eba3ddcb7a51badcd5ed3
Depends-On: I30f7cdcc3875f3f7af116c1e41e88f62ab9e91d0
When this was originally written, the plan was to read both the old and
new fields during the transition period, while stopping writes to them
midway through. It turns out that the WHERE conditions to do read-both
correctly are generally not handled well by the database and working
around that would require a lot of complicated code (see what's being
removed from ApiQueryUserContribs here, for example).
We can simplify things greatly by instead having it write both fields
during the transition period, reading from the old for the first part
and the new for the second part, as is being done for MCR.
Bug: T204669
Change-Id: I4764c1c7883dc1003cb12729455c8107319f70b1
Depends-On: I845f6ae462f2539ebd35cbb5f2ca8b5714e2c1fb
Depends-On: I88b31b977543fdbdf69f8c1158e77e448df94e11
During development a lot of classes were placed in MediaWiki\Storage\.
The precedent set would mean that every class relating to something
stored in a database table, plus all related value classes and such,
would go into that namespace.
Let's put them into MediaWiki\Revision\ instead. Then future classes
related to the 'page' table can go into MediaWiki\Page\, future classes
related to the 'user' table can go into MediaWiki\User\, and so on.
Note I didn't move DerivedPageDataUpdater, PageUpdateException,
PageUpdater, or RevisionSlotsUpdate in this patch. If these are kept
long-term, they probably belong in MediaWiki\Page\ or MediaWiki\Edit\
instead.
Bug: T204158
Change-Id: I16bea8927566a3c73c07e4f4afb3537e05aa04a5
Also enable some tests for PostgreSQL that are fixed by the new version.
Bug: T195807
Change-Id: Id0d016f620662836b3a17de5f118715c1cbe3e69
Depends-On: I3bd8df5236600963be89602b2a52d0d95d640d66
So we can make the job voting, preventing other tests from regressing.
These tests can be re-enabled whenever they're made to pass.
Bug: T195807
Change-Id: I58261dd70eea3581803987a4a7739c7d55558f42
