56 throw new InvalidArgumentException(
'Empty list of tables to clone' );
75 foreach ( $this->tablesToClone as $tbl ) {
79 throw new RuntimeException(
"Cannot clone shared table $tbl." );
81 # Clean up from previous aborted run. So that table escaping
82 # works correctly across DB engines, we need to change the pre-
83 # fix back and forth so tableName() works right.
85 $this->db->tablePrefix( $this->oldTablePrefix );
86 $oldTableName = $this->db->tableName( $tbl,
'raw' );
88 $this->db->tablePrefix( $this->newTablePrefix );
89 $newTableName = $this->db->tableName( $tbl,
'raw' );
93 if ( $this->dropCurrentTables ) {
94 if ( $oldTableName === $newTableName ) {
96 throw new LogicException(
"Not dropping new table, as '$newTableName'"
97 .
" is name of both the old and the new table." );
99 $this->db->dropTable( $tbl, __METHOD__ );
100 wfDebug( __METHOD__ .
" dropping {$newTableName}" );
105 wfDebug( __METHOD__ .
" duplicating $oldTableName to $newTableName" );
106 $this->db->duplicateTableStructure(
115 public function destroy( $dropTables =
false ) {
117 $this->db->tablePrefix( $this->newTablePrefix );
118 foreach ( $this->tablesToClone as $tbl ) {
119 $this->db->dropTable( $tbl, __METHOD__ );
122 $this->db->tablePrefix( $this->oldTablePrefix );
134 $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
135 $lbFactory->setLocalDomainPrefix( $prefix );
138 $wgDBname => $lbFactory->getLocalDomainID()
140 $lbFactory->setDomainAliases( $aliases );
141 foreach ( $lbFactory->getAllLBs() as $lb ) {
142 $lb->setDomainAliases( $aliases );
wfDebug( $text, $dest='all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
bool $useTemporaryTables
Whether to use temporary tables or not.
bool $dropCurrentTables
Should we DROP tables containing the new names?
IMaintainableDatabase $db
static changePrefix( $prefix)
Change the table prefix on all open DB connections.
string $newTablePrefix
Table prefix for cloning.
__construct(IMaintainableDatabase $db, array $tablesToClone, $newTablePrefix, $oldTablePrefix=null, $dropCurrentTables=true)
destroy( $dropTables=false)
Change the prefix back to the original.
array $tablesToClone
List of tables to be cloned.
useTemporaryTables( $u=true)
Set whether to use temporary tables or not.
string $oldTablePrefix
Current table prefix.
$wgDBprefix
Config variable stub for the DBprefix setting, for use by phpdoc and IDEs.
$wgSharedTables
Config variable stub for the SharedTables setting, for use by phpdoc and IDEs.
$wgDBname
Config variable stub for the DBname setting, for use by phpdoc and IDEs.
$wgSharedDB
Config variable stub for the SharedDB setting, for use by phpdoc and IDEs.
Advanced database interface for IDatabase handles that include maintenance methods.