This avoids having two similar fields that have to stay
in sync. Clean up the related error handling for connections.
If a connection handle is unusable, like when essential SET
queries fail, then destroy it.
Also:
* Avoid use of transactions in DatabasePostgres::determineCoreSchema.
* Make sure all subclasses log on connection failure.
* Add schema sanity checks to mysql/sqlite classes.
* Add IDatabase::QUERY_NO_RETRY flag to simplify reasoning about
queries that already run on open() to begin with.
* Remove unused return value of Database::open.
* Remove deprecated Database::reportConnectionError method.
Change-Id: I97beba7ead1523085bda8784234d00c69ef1accc
Change from ResultWrapper to IResultWrapper
Change from mysqli_result to resource
Changed mixed to return hint of interface
Document that fieldInfo returns bool
Change-Id: I5572fd41e0e11a2bc2eb116d0c82327499ecc518
The insert() method calls insertOneRow() method on line 391. It then
passes $fname which defaults to __METHOD__ in its function header and
not using $fname instead of __METHOD__ in insertOneRow() method makes
this parameter unused which of course should be used.
Change-Id: Ic5f5ee878e4f919a96900ba88755641ac85929df
This works similar to that of DatabasePostgres, which uses similar rules.
Fix bogus field access in duplicateTableStructure() as well.
Also, remove a pointless wfDebug() call in DatabaseOracle.
Change-Id: Ia06ff78011dfabc17c525d7a6d2ffad98fe297de
Instead of guessing/assuming input encodings for non-UTF8 fields,
just require that they be valid UTF-8 to begin with.
Also replace MWException use and break some long lines.
Change-Id: Ibb6f841d5d143776eca2a9d0d12cbb74f1e0d23e
Performance-wise, this gives a little boost in performance and also
it's more readable I think. But I could be wrong so please someone
let me know.
See: https://www.php.net/manual/en/function.call-user-func.php
Change-Id: I2f0a00408c29549a786b56792411f88998a5f003
This was inspired by Idbbdb31. Originally, I did a regex search for
code that did string concatenations like `$str = $str . …` and replaced
them all with the .= operator. A duplicate patch was uploaded by another
author. I rebeased this patch on top of the other, which leaves all
the manual optimizations I did.
Change-Id: Iaeb73d9c63302c9409bd1051b91e0d2bd77788a7
This was originally a global search and replace. I manually checked all
replacements and reverted them if (due to the lack of type hints) either
null (that would be 0 when counted) or a Countable object can end in the
variable or property in question.
Now this patch only touches places where I'm sure nothing can break.
For the sanity of the honorable reviewers this patch is exclusively touching
negated counts. You should not find a single `!== []` in this patch, that
would be a mistake.
Change-Id: I5eafd4d8fccdb53a668be8e6f25a566f9c3a0a95
Also improved the atomicity and affected row count logic for
insert/replace with sqlite.
Also remove unused "fileHandle" code from insert().
Change-Id: If7b9148fd44f3a958899885753c7c86ba66bf193
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
LoadBalancer uses Database::getDomainId() for deciding which keys to use
in the foreign connection handle arrays. This method should reflect any
changes made to the DB selection.
If the query fails, then do not change domain field. This is the sort of
approach that LoadBalancer is expects in openForeignConnection(). Also,
throw an exception when selectDB() fails.
The db/schema/prefix fields of Database no longer exist in favor of just
using the newer currentDomain field.
Also:
* Add IDatabase::selectDomain() method and made selectDB() wrap it.
* Extract the DB name from sqlite files if not explicitly provided.
* Fix inconsistent open() return values from Database subclasses.
* Make a relationSchemaQualifier() method to handle the concern of
omitting schema names in queries. The means that getDomainId() can
still return the right value, rather than confusingly omitt the schema.
* Make RevisionStore::checkDatabaseWikiId() account for the domain schema.
Unlike d2a4d614fc, this does not incorrectly assume the storage is
always for the current wiki domain. Also, LBFactorySingle sets the local
domain so it is defined even in install.php.
* Make RevisionStoreDbTestBase actually set the LoadBalancer local domain.
* Make RevisionTest::testLoadFromTitle() account for the domain schema.
Bug: T193565
Change-Id: I6e51cd54c6da78830b38906b8c46789c79498ab5
This is not called externally and there is little reason for that to
change. The current caller pattern is to use factory(), possibly with
initConnection() afterwards, or to use a LoadBalancer to begin with.
Change-Id: Ib1fdd5c960f1ed877fcd17bcb99b999d5d894716
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
Done using the PhpStorm refactor->rename tool.
Also move "defaultBigSelects" declaration to DatabaseMysqlBase
as no other classes uses that.
Change-Id: I424a2d9815de3a5d4cca2522f3db23a5efe6b592
* Update replace()/upsert() to combine the affected row
count for the non-native case
* Also make replace() atomic in the non-native case,
similar to how upsert() already works
Change-Id: I6c9bcba54eca6bcf4a93a9b230aaedf7f36aa877
It's often forgotten because MySQL and Sqlite don't use it, the only
users are PostgreSQL and Oracle. And when used, if inserts to multiple
tables are being done it's easy to get the ordering wrong.
This patch reimplements DatabasePostgres::insertId() in terms of PG's
lastval() function, and adds triggers to the Oracle schema to make it
work the same as the other databases.
Bug: T164900
Change-Id: Ib308190c52673a9266c8495a589ae644f9fbefce
selectField() and selectFieldValues() are trivial, they just need to
pass it through to select(). In fact, selectFieldValues() was already
doing it, just no one ever updated IDatabase.
insertSelect() is a little more work. nativeInsertSelect() was
originally written as largely a copy-paste of select() and has since
gotten well out of sync. Now that we have selectSQLText(), we should be
able to just use that. DatabasePostgres's implementation can wrap the
parent implementation instead of being another copy-paste, but
DatabaseOracle seems to still need to be special.
Change-Id: I0e6a9e6daa510639d3212641606047a5db96c500
Leave \Blob as an alias. Callers can now use the Rdbms\Blob class
for "extends"/"new" and the Rdbms\IBlob interface for type hints.
Change-Id: I983b76f181ac60c1eb92c350cd27ad77ec90a192
Use of &$this doesn't work in PHP 7.1. For callbacks to methods like
array_map() it's completely unnecessary, while for hooks we still need
to pass a reference and so we need to copy $this into a local variable.
Bug: T153505
Change-Id: I8bbb26e248cd6f213fd0e7460d6d6935a3f9e468
Most of these are simply changing annotations to reflect
reality. If a function can return false to indicate failure
the @return should indicate it.
Some are fixing preg_match calls, preg match returns 1, 0 or false,
but the functions all claim to return booleans.
This is far from all the incorrect return types in mediawiki, there
are around 250 detected by phan, but have to start somewhere.
Change-Id: I1bbdfee6190747bde460f8a7084212ccafe169ef
These DatabaseBase methods have no callers are were a mistake to
begin with. They only encouraged code forking and incompatibilities
among different backing DB types.
Also removed stray realTimestamps() method that was left over
from prior removals.
Change-Id: I37bef8585151e2782d2c88b5ae1e6752109c6ac7
The Database class was previously just a short-hand for "Database::",
and such calls should still work. The class now resides in /libs/rdbms.
The subclasses now extend DatabaseBase to avoid breaking type hints
that use that (hints use either IDatabase or DatabaseBase).
Also, use CASCADE with DROP TABLE for MySQL as with other DBs.
Keep SQLite excempt due to lack of support.
Added getDomainID() methods to avoid mentioning the word "wiki".
Change-Id: Ibd05d786cb26c21dcc9cb9601f6b2b52056af9ae
