Go to the documentation of this file.
78 foreach ( $this->tablesToClone
as $tbl ) {
82 throw new RuntimeException(
"Cannot clone shared table $tbl." );
84 # Clean up from previous aborted run. So that table escaping
85 # works correctly across DB engines, we need to change the pre-
86 # fix back and forth so tableName() works right.
89 $oldTableName = $this->db->tableName( $tbl,
'raw' );
92 $newTableName = $this->db->tableName( $tbl,
'raw' );
96 if ( $this->dropCurrentTables
97 && !in_array( $this->db->getType(), [
'oracle' ] )
99 if ( $oldTableName === $newTableName ) {
101 throw new LogicException(
"Not dropping new table, as '$newTableName'"
102 .
" is name of both the old and the new table." );
104 $this->db->dropTable( $tbl, __METHOD__ );
105 wfDebug( __METHOD__ .
" dropping {$newTableName}\n" );
110 wfDebug( __METHOD__ .
" duplicating $oldTableName to $newTableName\n" );
111 $this->db->duplicateTableStructure(
120 public function destroy( $dropTables =
false ) {
123 foreach ( $this->tablesToClone
as $tbl ) {
124 $this->db->dropTable( $tbl );
139 $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
140 $lbFactory->setDomainPrefix( $prefix );
cloneTableStructure()
Clone the table structure.
$wgSharedDB
Shared database for multiple wikis.
as see the revision history and available at free of to any person obtaining a copy of this software and associated documentation to deal in the Software without including without limitation the rights to use
bool $useTemporaryTables
Whether to use temporary tables or not.
$wgDBprefix
Table name prefix.
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
array $tablesToClone
List of tables to be cloned.
string $oldTablePrefix
Current table prefix.
when a variable name is used in a it is silently declared as a new masking the global
wfDebug( $text, $dest='all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
destroy( $dropTables=false)
Change the prefix back to the original.
useTemporaryTables( $u=true)
Set whether to use temporary tables or not.
static changePrefix( $prefix)
Change the table prefix on all open DB connections/.
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
IMaintainableDatabase $db
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 MediaWikiServices
bool $dropCurrentTables
Should we DROP tables containing the new names?
Advanced database interface for IDatabase handles that include maintenance methods.
string $newTablePrefix
Table prefix for cloning.
__construct(IMaintainableDatabase $db, array $tablesToClone, $newTablePrefix, $oldTablePrefix='', $dropCurrentTables=true)
the array() calling protocol came about after MediaWiki 1.4rc1.