9use Wikimedia\TestingAccessWrapper;
17 use MediaWikiCoversValidator;
28 $m = Database::NEW_UNCONNECTED;
29 $p = [
'host' =>
'localhost',
'user' =>
'me',
'password' =>
'myself',
'dbname' =>
'i' ];
31 $this->assertInstanceOf( DatabaseMysqli::class, Database::factory(
'mysqli', $p, $m ) );
32 $this->assertInstanceOf( DatabaseMysqli::class, Database::factory(
'MySqli', $p, $m ) );
33 $this->assertInstanceOf( DatabaseMysqli::class, Database::factory(
'MySQLi', $p, $m ) );
34 $this->assertInstanceOf( DatabasePostgres::class, Database::factory(
'postgres', $p, $m ) );
35 $this->assertInstanceOf( DatabasePostgres::class, Database::factory(
'Postgres', $p, $m ) );
37 $x = $p + [
'port' => 10000,
'UseWindowsAuth' =>
false ];
38 $this->assertInstanceOf( DatabaseMssql::class, Database::factory(
'mssql', $x, $m ) );
40 $x = $p + [
'dbFilePath' =>
'some/file.sqlite' ];
41 $this->assertInstanceOf( DatabaseSqlite::class, Database::factory(
'sqlite', $x, $m ) );
42 $x = $p + [
'dbDirectory' =>
'some/file' ];
43 $this->assertInstanceOf( DatabaseSqlite::class, Database::factory(
'sqlite', $x, $m ) );
50 [ 1234.5678,
"'1234.5678'" ],
51 [
'string',
"'string'" ],
52 [
'string\'s cause trouble',
"'string\'s cause trouble'" ],
61 $this->assertEquals( $expected, $this->db->addQuotes(
$input ) );
82 [
'dbname' =>
'sharedb',
'schema' =>
null,
'prefix' =>
'' ],
88 [
'dbname' =>
'sharedb',
'schema' =>
null,
'prefix' =>
'' ],
91 'sharedb.sh_tablename',
94 [
'dbname' =>
'sharedb',
'schema' =>
null,
'prefix' =>
'sh_' ],
96 'shared-prefix-raw' => [
97 'sharedb.sh_tablename',
100 [
'dbname' =>
'sharedb',
'schema' =>
null,
'prefix' =>
'sh_' ],
103 'databasename.tablename',
104 'databasename.tablename',
108 'databasename.tablename',
109 'databasename.tablename',
121 $this->db->setTableAliases( [ $table => $alias ] );
125 $this->db->tableName( $table, $format ?:
'quoted' )
131 'one-element array' => [
132 [
'table' ], [],
'table '
135 [
'table1',
'table2' ], [],
'table1,table2 '
138 [
'table1',
'table2' ],
139 [
'table2' => [
'LEFT JOIN',
't1_id = t2_id' ] ],
140 'table1 LEFT JOIN table2 ON ((t1_id = t2_id))'
142 'real join with multiple conditionals' => [
143 [
'table1',
'table2' ],
144 [
'table2' => [
'LEFT JOIN', [
't1_id = t2_id',
't2_x = \'X\'' ] ] ],
145 'table1 LEFT JOIN table2 ON ((t1_id = t2_id) AND (t2_x = \'X\'))'
147 'join with parenthesized group' => [
148 [
'table1',
'n' => [
'table2',
'table3' ] ],
150 'table3' => [
'JOIN',
't2_id = t3_id' ],
151 'n' => [
'LEFT JOIN',
't1_id = t2_id' ],
153 'table1 LEFT JOIN (table2 JOIN table3 ON ((t2_id = t3_id))) ON ((t1_id = t2_id))'
155 'join with degenerate parenthesized group' => [
156 [
'table1',
'n' => [
't2' =>
'table2' ] ],
158 'n' => [
'LEFT JOIN',
't1_id = t2_id' ],
160 'table1 LEFT JOIN table2 t2 ON ((t1_id = t2_id))'
170 $clause = TestingAccessWrapper::newFromObject( $this->db )
171 ->tableNamesWithIndexClauseOrJOIN(
$tables, [], [], $join_conds );
172 $this->assertSame( $expect, $clause );
185 $callback =
function ( $trigger,
IDatabase $db )
use ( &$flagSet, &$called ) {
187 $flagSet = $db->getFlag(
DBO_TRX );
190 $db->onTransactionCommitOrIdle( $callback, __METHOD__ );
191 $this->assertTrue( $called,
'Callback reached' );
192 $this->assertFalse( $flagSet,
'DBO_TRX off in callback' );
193 $this->assertFalse( $db->getFlag(
DBO_TRX ),
'DBO_TRX still default' );
197 $db->startAtomic( __METHOD__ );
198 $db->onTransactionCommitOrIdle( $callback, __METHOD__ );
199 $this->assertFalse( $called,
'Callback not reached during TRX' );
200 $db->endAtomic( __METHOD__ );
202 $this->assertTrue( $called,
'Callback reached after COMMIT' );
203 $this->assertFalse( $flagSet,
'DBO_TRX off in callback' );
204 $this->assertFalse( $db->getFlag(
DBO_TRX ),
'DBO_TRX restored to default' );
207 $db->onTransactionCommitOrIdle(
213 $this->assertFalse( $db->
getFlag(
DBO_TRX ),
'DBO_TRX restored to default' );
221 $db = $this->
getMockDB( [
'isOpen',
'ping',
'getDBname' ] );
222 $db->method(
'isOpen' )->willReturn(
true );
223 $db->method(
'ping' )->willReturn(
true );
224 $db->method(
'getDBname' )->willReturn(
'' );
227 $lbFactory = LBFactorySingle::newFromConnection( $db );
230 $lb = $lbFactory->getMainLB();
231 $conn = $lb->openConnection( $lb->getWriterIndex() );
232 $this->assertSame( $db, $conn,
'Same DB instance' );
233 $this->assertTrue( $db->getFlag(
DBO_TRX ),
'DBO_TRX is set' );
237 $callback =
function ()
use ( $db, &$flagSet, &$called ) {
239 $flagSet = $db->getFlag(
DBO_TRX );
242 $db->onTransactionCommitOrIdle( $callback, __METHOD__ );
243 $this->assertTrue( $called,
'Called when idle if DBO_TRX is set' );
244 $this->assertFalse( $flagSet,
'DBO_TRX off in callback' );
245 $this->assertTrue( $db->getFlag(
DBO_TRX ),
'DBO_TRX still default' );
248 $lbFactory->beginMasterChanges( __METHOD__ );
249 $db->onTransactionCommitOrIdle( $callback, __METHOD__ );
250 $this->assertFalse( $called,
'Not called when lb-transaction is active' );
252 $lbFactory->commitMasterChanges( __METHOD__ );
253 $this->assertTrue( $called,
'Called when lb-transaction is committed' );
256 $lbFactory->beginMasterChanges( __METHOD__ );
257 $db->onTransactionCommitOrIdle( $callback, __METHOD__ );
258 $this->assertFalse( $called,
'Not called when lb-transaction is active' );
260 $lbFactory->rollbackMasterChanges( __METHOD__ );
261 $this->assertFalse( $called,
'Not called when lb-transaction is rolled back' );
263 $lbFactory->commitMasterChanges( __METHOD__ );
264 $this->assertFalse( $called,
'Not called in next round commit' );
268 $db->onTransactionCommitOrIdle(
function () {
269 throw new RuntimeException(
'test' );
271 $this->fail(
"Exception not thrown" );
272 }
catch ( RuntimeException
$e ) {
273 $this->assertTrue( $db->getFlag(
DBO_TRX ) );
283 $db->method(
'isOpen' )->willReturn(
true );
286 $this->assertFalse( $db->getFlag(
DBO_TRX ),
'DBO_TRX is not set' );
289 $db->onTransactionPreCommitOrIdle(
295 $this->assertTrue( $called,
'Called when idle' );
297 $db->
begin( __METHOD__ );
305 $this->assertFalse( $called,
'Not called when transaction is active' );
306 $db->
commit( __METHOD__ );
307 $this->assertTrue( $called,
'Called when transaction is committed' );
315 $db = $this->
getMockDB( [
'isOpen',
'ping',
'getDBname' ] );
316 $db->method(
'isOpen' )->willReturn(
true );
317 $db->method(
'ping' )->willReturn(
true );
318 $db->method(
'getDBname' )->willReturn(
'unittest' );
321 $lbFactory = LBFactorySingle::newFromConnection( $db );
324 $lb = $lbFactory->getMainLB();
325 $conn = $lb->openConnection( $lb->getWriterIndex() );
326 $this->assertSame( $db, $conn,
'Same DB instance' );
328 $this->assertFalse( $lb->hasMasterChanges() );
329 $this->assertTrue( $db->getFlag(
DBO_TRX ),
'DBO_TRX is set' );
331 $callback =
function (
IDatabase $db )
use ( &$called ) {
334 $db->onTransactionPreCommitOrIdle( $callback, __METHOD__ );
335 $this->assertTrue( $called,
'Called when idle if DBO_TRX is set' );
337 $lbFactory->commitMasterChanges();
338 $this->assertFalse( $called );
341 $lbFactory->beginMasterChanges( __METHOD__ );
342 $db->onTransactionPreCommitOrIdle( $callback, __METHOD__ );
343 $this->assertFalse( $called,
'Not called when lb-transaction is active' );
344 $lbFactory->commitMasterChanges( __METHOD__ );
345 $this->assertTrue( $called,
'Called when lb-transaction is committed' );
348 $lbFactory->beginMasterChanges( __METHOD__ );
349 $db->onTransactionPreCommitOrIdle( $callback, __METHOD__ );
350 $this->assertFalse( $called,
'Not called when lb-transaction is active' );
352 $lbFactory->rollbackMasterChanges( __METHOD__ );
353 $this->assertFalse( $called,
'Not called when lb-transaction is rolled back' );
355 $lbFactory->commitMasterChanges( __METHOD__ );
356 $this->assertFalse( $called,
'Not called in next round commit' );
367 $db->begin( __METHOD__ );
369 $db->onTransactionResolution(
function ( $trigger,
IDatabase $db )
use ( &$called ) {
373 $db->
commit( __METHOD__ );
374 $this->assertFalse( $db->
getFlag(
DBO_TRX ),
'DBO_TRX restored to default' );
375 $this->assertTrue( $called,
'Callback reached' );
378 $db->
begin( __METHOD__ );
385 $this->assertFalse( $db->
getFlag(
DBO_TRX ),
'DBO_TRX restored to default' );
386 $this->assertTrue( $called,
'Callback reached' );
395 $db->setTransactionListener(
'ping',
function ()
use ( $db, &$called ) {
400 $db->begin( __METHOD__ );
401 $db->commit( __METHOD__ );
402 $this->assertTrue( $called,
'Callback reached' );
405 $db->begin( __METHOD__ );
406 $db->commit( __METHOD__ );
407 $this->assertTrue( $called,
'Callback still reached' );
410 $db->begin( __METHOD__ );
411 $db->rollback( __METHOD__ );
412 $this->assertTrue( $called,
'Callback reached' );
414 $db->setTransactionListener(
'ping',
null );
416 $db->begin( __METHOD__ );
417 $db->commit( __METHOD__ );
418 $this->assertFalse( $called,
'Callback not reached' );
431 static $abstractMethods = [
432 'fetchAffectedRowCount',
436 'fetchObject',
'fetchRow',
437 'fieldInfo',
'fieldName',
438 'getSoftwareLink',
'getServerVersion',
442 'lastError',
'lastErrno',
443 'numFields',
'numRows',
448 $db = $this->getMockBuilder( Database::class )
449 ->disableOriginalConstructor()
450 ->setMethods( array_values( array_unique( array_merge(
455 $wdb = TestingAccessWrapper::newFromObject( $db );
457 $wdb->connLogger = new \Psr\Log\NullLogger();
458 $wdb->queryLogger = new \Psr\Log\NullLogger();
459 $wdb->currentDomain = DatabaseDomain::newUnspecified();
468 $db->method(
'isOpen' )->willReturn(
true );
470 $db->flushSnapshot( __METHOD__ );
471 $db->flushSnapshot( __METHOD__ );
473 $db->setFlag(
DBO_TRX, $db::REMEMBER_PRIOR );
474 $db->query(
'SELECT 1', __METHOD__ );
475 $this->assertTrue( (
bool)$db->trxLevel(),
"Transaction started." );
476 $db->flushSnapshot( __METHOD__ );
477 $db->restoreFlags( $db::RESTORE_PRIOR );
479 $this->assertFalse( (
bool)$db->trxLevel(),
"Transaction cleared." );
489 $db = $this->
getMockDB( [
'isOpen',
'getDBname' ] );
490 $db->method(
'isOpen' )->willReturn(
true );
491 $db->method(
'getDBname' )->willReturn(
'unittest' );
493 $this->assertEquals( 0, $db->trxLevel() );
494 $this->assertEquals(
true, $db->lockIsFree(
'x', __METHOD__ ) );
495 $this->assertEquals(
true, $db->lock(
'x', __METHOD__ ) );
496 $this->assertEquals(
false, $db->lockIsFree(
'x', __METHOD__ ) );
497 $this->assertEquals(
true, $db->unlock(
'x', __METHOD__ ) );
498 $this->assertEquals(
true, $db->lockIsFree(
'x', __METHOD__ ) );
499 $this->assertEquals( 0, $db->trxLevel() );
502 $this->assertEquals(
true, $db->lockIsFree(
'x', __METHOD__ ) );
503 $this->assertEquals(
true, $db->lock(
'x', __METHOD__ ) );
504 $this->assertEquals(
false, $db->lockIsFree(
'x', __METHOD__ ) );
505 $this->assertEquals(
true, $db->unlock(
'x', __METHOD__ ) );
506 $this->assertEquals(
true, $db->lockIsFree(
'x', __METHOD__ ) );
510 $this->assertEquals( 0, $db->trxLevel() );
511 $this->assertTrue( $db->lockIsFree(
'meow', __METHOD__ ) );
513 $db->query(
"DELETE FROM test WHERE t = 1" );
515 $lock = $db->getScopedLockAndFlush(
'meow', __METHOD__, 1 );
516 $this->fail(
"Exception not reached" );
518 $this->assertEquals( 1, $db->trxLevel(),
"Transaction not committed." );
519 $this->assertTrue( $db->lockIsFree(
'meow', __METHOD__ ),
'Lock not acquired' );
521 $db->rollback( __METHOD__, IDatabase::FLUSHING_ALL_PEERS );
524 $this->assertEquals( 0, $db->trxLevel() );
525 $this->assertTrue( $db->lockIsFree(
'meow2', __METHOD__ ) );
526 $db->begin( __METHOD__ );
527 $db->query(
"DELETE FROM test WHERE t = 1" );
529 $lock = $db->getScopedLockAndFlush(
'meow2', __METHOD__, 1 );
530 $this->fail(
"Exception not reached" );
532 $this->assertEquals( 1, $db->trxLevel(),
"Transaction not committed." );
533 $this->assertTrue( $db->lockIsFree(
'meow2', __METHOD__ ),
'Lock not acquired' );
535 $db->rollback( __METHOD__ );
538 $this->assertEquals( 0, $db->trxLevel() );
539 $this->assertTrue( $db->lockIsFree(
'wuff', __METHOD__ ) );
540 $db->query(
"SELECT 1", __METHOD__ );
541 $this->assertEquals( 1, $db->trxLevel() );
542 $lock = $db->getScopedLockAndFlush(
'wuff', __METHOD__, 1 );
543 $this->assertEquals( 0, $db->trxLevel() );
544 $this->assertFalse( $db->lockIsFree(
'wuff', __METHOD__ ),
'Lock already acquired' );
545 $db->rollback( __METHOD__, IDatabase::FLUSHING_ALL_PEERS );
548 $this->assertEquals( 0, $db->trxLevel() );
549 $this->assertTrue( $db->lockIsFree(
'wuff2', __METHOD__ ) );
550 $db->begin( __METHOD__ );
552 $lock = $db->getScopedLockAndFlush(
'wuff2', __METHOD__, 1 );
553 $this->fail(
"Exception not reached" );
555 $this->assertEquals( 1, $db->trxLevel(),
"Transaction not committed." );
556 $this->assertFalse( $db->lockIsFree(
'wuff2', __METHOD__ ),
'Lock not acquired' );
558 $db->rollback( __METHOD__ );
568 $origTrx = $db->getFlag(
DBO_TRX );
569 $origSsl = $db->getFlag(
DBO_SSL );
572 ? $db->clearFlag(
DBO_TRX, $db::REMEMBER_PRIOR )
573 : $db->setFlag(
DBO_TRX, $db::REMEMBER_PRIOR );
574 $this->assertEquals( !$origTrx, $db->getFlag(
DBO_TRX ) );
577 ? $db->clearFlag(
DBO_SSL, $db::REMEMBER_PRIOR )
578 : $db->setFlag(
DBO_SSL, $db::REMEMBER_PRIOR );
579 $this->assertEquals( !$origSsl, $db->getFlag(
DBO_SSL ) );
581 $db->restoreFlags( $db::RESTORE_INITIAL );
582 $this->assertEquals( $origTrx, $db->getFlag(
DBO_TRX ) );
583 $this->assertEquals( $origSsl, $db->getFlag(
DBO_SSL ) );
586 ? $db->clearFlag(
DBO_TRX, $db::REMEMBER_PRIOR )
587 : $db->setFlag(
DBO_TRX, $db::REMEMBER_PRIOR );
589 ? $db->clearFlag(
DBO_SSL, $db::REMEMBER_PRIOR )
590 : $db->setFlag(
DBO_SSL, $db::REMEMBER_PRIOR );
593 $this->assertEquals( $origSsl, $db->getFlag(
DBO_SSL ) );
594 $this->assertEquals( !$origTrx, $db->getFlag(
DBO_TRX ) );
597 $this->assertEquals( $origSsl, $db->getFlag(
DBO_SSL ) );
598 $this->assertEquals( $origTrx, $db->getFlag(
DBO_TRX ) );
606 $db = $this->getMockBuilder( DatabaseMysqli::class )
607 ->disableOriginalConstructor()
611 $db->setFlag( Database::DBO_IGNORE );
619 $db = $this->getMockBuilder( DatabaseMysqli::class )
620 ->disableOriginalConstructor()
624 $db->clearFlag( Database::DBO_IGNORE );
632 $old = $this->db->tablePrefix();
633 $oldDomain = $this->db->getDomainId();
634 $this->assertInternalType(
'string', $old,
'Prefix is string' );
635 $this->assertSame( $old, $this->db->tablePrefix(),
"Prefix unchanged" );
636 $this->assertSame( $old, $this->db->tablePrefix(
'xxx' ) );
637 $this->assertSame(
'xxx', $this->db->tablePrefix(),
"Prefix set" );
638 $this->db->tablePrefix( $old );
639 $this->assertNotEquals(
'xxx', $this->db->tablePrefix() );
640 $this->assertSame( $oldDomain, $this->db->getDomainId() );
642 $old = $this->db->dbSchema();
643 $oldDomain = $this->db->getDomainId();
644 $this->assertInternalType(
'string', $old,
'Schema is string' );
645 $this->assertSame( $old, $this->db->dbSchema(),
"Schema unchanged" );
646 $this->assertSame( $old, $this->db->dbSchema(
'xxx' ) );
647 $this->assertSame(
'xxx', $this->db->dbSchema(),
"Schema set" );
648 $this->db->dbSchema( $old );
649 $this->assertNotEquals(
'xxx', $this->db->dbSchema() );
650 $this->assertSame( $oldDomain, $this->db->getDomainId() );
657 $oldDomain = $this->db->getDomainId();
658 $oldDatabase = $this->db->getDBname();
659 $oldSchema = $this->db->dbSchema();
660 $oldPrefix = $this->db->tablePrefix();
662 $this->db->selectDomain(
'testselectdb-xxx' );
663 $this->assertSame(
'testselectdb', $this->db->getDBname() );
664 $this->assertSame(
'', $this->db->dbSchema() );
665 $this->assertSame(
'xxx', $this->db->tablePrefix() );
667 $this->db->selectDomain( $oldDomain );
668 $this->assertSame( $oldDatabase, $this->db->getDBname() );
669 $this->assertSame( $oldSchema, $this->db->dbSchema() );
670 $this->assertSame( $oldPrefix, $this->db->tablePrefix() );
671 $this->assertSame( $oldDomain, $this->db->getDomainId() );
673 $this->db->selectDomain(
'testselectdb-schema-xxx' );
674 $this->assertSame(
'testselectdb', $this->db->getDBname() );
675 $this->assertSame(
'schema', $this->db->dbSchema() );
676 $this->assertSame(
'xxx', $this->db->tablePrefix() );
678 $this->db->selectDomain( $oldDomain );
679 $this->assertSame( $oldDatabase, $this->db->getDBname() );
680 $this->assertSame( $oldSchema, $this->db->dbSchema() );
681 $this->assertSame( $oldPrefix, $this->db->tablePrefix() );
682 $this->assertSame( $oldDomain, $this->db->getDomainId() );
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
Helper for testing the methods from the Database class.
testTransactionPreCommitOrIdle_TRX()
Wikimedia\Rdbms\Database::onTransactionPreCommitOrIdle Wikimedia\Rdbms\Database::runOnTransactionPreC...
testTransactionIdle()
Wikimedia\Rdbms\Database::onTransactionCommitOrIdle Wikimedia\Rdbms\Database::runOnTransactionIdleCal...
testTableName( $expected, $table, $format, array $alias=null)
provideTableName Wikimedia\Rdbms\Database::tableName
testSelectDomain()
Wikimedia\Rdbms\Database::selectDomain.
provideTableNamesWithIndexClauseOrJOIN()
testTransactionListener()
Wikimedia\Rdbms\Database::setTransactionListener.
testFlagSetting()
Wikimedia\Rdbms\Database::getFlag Wikimedia\Rdbms\Database::setFlag Wikimedia\Rdbms\Database::restore...
testTableNamesWithIndexClauseOrJOIN( $tables, $join_conds, $expect)
provideTableNamesWithIndexClauseOrJOIN Wikimedia\Rdbms\Database::tableNamesWithIndexClauseOrJOIN
testGetScopedLock()
Wikimedia\Rdbms\Database::getScopedLockAndFlush Wikimedia\Rdbms\Database::lock Wikimedia\Rdbms\Databa...
static provideAddQuotes()
testFlushSnapshot()
Wikimedia\Rdbms\Database::flushSnapshot.
testTransactionResolution()
Wikimedia\Rdbms\Database::onTransactionResolution Wikimedia\Rdbms\Database::runOnTransactionIdleCallb...
testSchemaAndPrefixMutators()
Wikimedia\Rdbms\Database::tablePrefix Wikimedia\Rdbms\Database::dbSchema.
static provideTableName()
testTransactionPreCommitOrIdle()
Wikimedia\Rdbms\Database::onTransactionPreCommitOrIdle Wikimedia\Rdbms\Database::runOnTransactionPreC...
testDBOIgnoreClear()
UnexpectedValueException Wikimedia\Rdbms\Database::clearFlag.
testAddQuotes( $input, $expected)
provideAddQuotes Wikimedia\Rdbms\Database::addQuotes
getMockDB( $methods=[])
Use this mock instead of DatabaseTestHelper for cases where DatabaseTestHelper is too inflexibile due...
testDBOIgnoreSet()
UnexpectedValueException Wikimedia\Rdbms\Database::setFlag.
testTransactionIdle_TRX()
Wikimedia\Rdbms\Database::onTransactionCommitOrIdle Wikimedia\Rdbms\Database::runOnTransactionIdleCal...
testFactory()
provideAddQuotes Wikimedia\Rdbms\Database::factory
Class to handle database/prefix specification for IDatabase domains.
this hook is for auditing only RecentChangesLinked and Watchlist Do not use this to implement individual filters if they are compatible with the ChangesListFilter and ChangesListFilterGroup structure use sub classes of those in conjunction with the ChangesListSpecialPageStructuredFilters hook This hook can be used to implement filters that do not implement that or custom behavior that is not an individual filter e g Watchlist & $tables
processing should stop and the error should be shown to the user * false
returning false will NOT prevent logging $e
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))
if(is_array($mode)) switch( $mode) $input