MysqlUpdater.php
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MysqlUpdater.php
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	<?php

	/**
	* MySQL-specific updater.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License as published by
	* the Free Software Foundation; either version 2 of the License, or
	* (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License along
	* with this program; if not, write to the Free Software Foundation, Inc.,
	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	* http://www.gnu.org/copyleft/gpl.html
	*
	* @file
	* @ingroup Installer
	*/

	namespace MediaWiki\Installer;

	use FixInconsistentRedirects;
	use MediaWiki\Maintenance\FixAutoblockLogTitles;
	use MigrateExternallinks;
	use MigrateRevisionActorTemp;
	use MigrateRevisionCommentTemp;
	use PopulateUserIsTemp;
	use UpdateRestrictions;

	/**
	* Mysql update list and mysql-specific update functions.
	*
	* @ingroup Installer
	* @since 1.17
	* @property \Wikimedia\Rdbms\DatabaseMySQL $db
	*/
	class MysqlUpdater extends DatabaseUpdater {
	protected function getCoreUpdateList() {
	return [
	// 1.36
	[ 'modifyField', 'redirect', 'rd_title', 'patch-redirect-rd_title-varbinary.sql' ],
	[ 'modifyField', 'pagelinks', 'pl_title', 'patch-pagelinks-pl_title-varbinary.sql' ],
	[ 'modifyField', 'templatelinks', 'tl_title', 'patch-templatelinks-tl_title-varbinary.sql' ],
	[ 'modifyField', 'imagelinks', 'il_to', 'patch-imagelinks-il_to-varbinary.sql' ],
	[ 'modifyField', 'langlinks', 'll_title', 'patch-langlinks-ll_title-varbinary.sql' ],
	[ 'modifyField', 'iwlinks', 'iwl_title', 'patch-iwlinks-iwl_title-varbinary.sql' ],
	[ 'modifyField', 'category', 'cat_title', 'patch-category-cat_title-varbinary.sql' ],
	[ 'modifyField', 'querycache', 'qc_title', 'patch-querycache-qc_title-varbinary.sql' ],
	[ 'modifyField', 'querycachetwo', 'qcc_title', 'patch-querycachetwo-qcc_title-varbinary.sql' ],
	[ 'modifyField', 'watchlist', 'wl_title', 'patch-watchlist-wl_title-varbinary.sql' ],
	[ 'modifyField', 'user_newtalk', 'user_last_timestamp',
	'patch-user_newtalk-user_last_timestamp-binary.sql'
	],
	[ 'modifyField', 'protected_titles', 'pt_title', 'patch-protected_titles-pt_title-varbinary.sql' ],
	[ 'dropDefault', 'protected_titles', 'pt_expiry' ],
	[ 'dropDefault', 'ip_changes', 'ipc_rev_timestamp' ],
	[ 'modifyField', 'ipblocks_restrictions', 'ir_type', 'patch-ipblocks_restrictions-ir_type.sql' ],
	[ 'renameIndex', 'watchlist', 'namespace_title', 'wl_namespace_title', false,
	'patch-watchlist-namespace_title-rename-index.sql' ],
	[ 'modifyField', 'job', 'job_title', 'patch-job-job_title-varbinary.sql' ],
	[ 'modifyField', 'job', 'job_timestamp', 'patch-job_job_timestamp.sql' ],
	[ 'modifyField', 'job', 'job_token_timestamp', 'patch-job_job_token_timestamp.sql' ],
	[ 'modifyField', 'watchlist', 'wl_notificationtimestamp', 'patch-watchlist-wl_notificationtimestamp.sql' ],
	[ 'modifyField', 'slot_roles', 'role_id', 'patch-slot_roles-role_id.sql' ],
	[ 'modifyField', 'content_models', 'model_id', 'patch-content_models-model_id.sql' ],
	[ 'modifyField', 'categorylinks', 'cl_to', 'patch-categorylinks-cl_to-varbinary.sql' ],
	[ 'modifyField', 'logging', 'log_title', 'patch-logging-log_title-varbinary.sql' ],
	[ 'modifyField', 'uploadstash', 'us_timestamp', 'patch-uploadstash-us_timestamp.sql' ],
	[ 'renameIndex', 'user_properties', 'user_properties_property', 'up_property', false,
	'patch-user_properties-rename-index.sql' ],
	[ 'renameIndex', 'sites', 'sites_global_key', 'site_global_key', false, 'patch-sites-rename-indexes.sql' ],
	[ 'renameIndex', 'logging', 'type_time', 'log_type_time', false, 'patch-logging-rename-indexes.sql' ],
	[ 'modifyField', 'filearchive', 'fa_name', 'patch-filearchive-fa_name.sql' ],
	[ 'dropDefault', 'filearchive', 'fa_deleted_timestamp' ],
	[ 'dropDefault', 'filearchive', 'fa_timestamp' ],
	[ 'modifyField', 'oldimage', 'oi_name', 'patch-oldimage-oi_name-varbinary.sql' ],
	[ 'dropDefault', 'oldimage', 'oi_timestamp' ],
	[ 'modifyField', 'objectcache', 'exptime', 'patch-objectcache-exptime-notnull.sql' ],
	[ 'dropDefault', 'ipblocks', 'ipb_timestamp' ],
	[ 'dropDefault', 'ipblocks', 'ipb_expiry' ],
	[ 'renameIndex', 'archive', 'name_title_timestamp', 'ar_name_title_timestamp', false,
	'patch-archive-rename-name_title_timestamp-index.sql' ],
	[ 'modifyField', 'image', 'img_name', 'patch-image-img_name-varbinary.sql' ],
	[ 'dropDefault', 'image', 'img_timestamp' ],
	[ 'modifyField', 'image', 'img_timestamp', 'patch-image-img_timestamp.sql' ],
	[ 'renameIndex', 'site_identifiers', 'site_ids_key', 'si_key', false,
	'patch-site_identifiers-rename-indexes.sql' ],
	[ 'modifyField', 'recentchanges', 'rc_title', 'patch-recentchanges-rc_title-varbinary.sql' ],
	[ 'dropDefault', 'recentchanges', 'rc_timestamp' ],
	[ 'modifyField', 'recentchanges', 'rc_timestamp', 'patch-recentchanges-rc_timestamp.sql' ],
	[ 'modifyField', 'recentchanges', 'rc_id', 'patch-recentchanges-rc_id.sql' ],
	[ 'renameIndex', 'recentchanges', 'new_name_timestamp', 'rc_new_name_timestamp', false,
	'patch-recentchanges-rc_new_name_timestamp.sql' ],
	[ 'dropDefault', 'archive', 'ar_timestamp' ],
	[ 'modifyField', 'archive', 'ar_title', 'patch-archive-ar_title-varbinary.sql' ],
	[ 'modifyField', 'page', 'page_title', 'patch-page-page_title-varbinary.sql' ],
	[ 'dropDefault', 'page', 'page_touched' ],
	[ 'modifyField', 'user', 'user_name', 'patch-user_table-updates.sql' ],

	// 1.37
	[ 'renameIndex', 'revision', 'page_timestamp', 'rev_page_timestamp', false,
	'patch-revision-rename-index.sql' ],
	[ 'addField', 'objectcache', 'modtoken', 'patch-objectcache-modtoken.sql' ],
	[ 'dropDefault', 'revision', 'rev_timestamp' ],
	[ 'addIndex', 'oldimage', 'oi_timestamp', 'patch-oldimage-oi_timestamp.sql' ],
	[ 'renameIndex', 'page', 'name_title', 'page_name_title', false, 'patch-page-rename-name_title-index.sql' ],
	[ 'renameIndex', 'change_tag', 'change_tag_rc_tag_id', 'ct_rc_tag_id', false,
	'patch-change_tag-rename-indexes.sql' ],

	// 1.38
	[ 'doConvertDjvuMetadata' ],
	[ 'dropField', 'page_restrictions', 'pr_user', 'patch-drop-page_restrictions-pr_user.sql' ],
	[ 'modifyField', 'filearchive', 'fa_id', 'patch-filearchive-fa_id.sql' ],
	[ 'modifyField', 'image', 'img_major_mime', 'patch-image-img_major_mime-default.sql' ],
	[ 'addTable', 'linktarget', 'patch-linktarget.sql' ],
	[ 'dropIndex', 'revision', 'rev_page_id', 'patch-drop-rev_page_id.sql' ],
	[ 'modifyField', 'page_restrictions', 'pr_page', 'patch-page_restrictions-pr_page.sql' ],
	[ 'modifyField', 'page_props', 'pp_page', 'patch-page_props-pp_page.sql' ],
	[ 'modifyField', 'ipblocks_restrictions', 'ir_value', 'patch-ipblocks_restrictions-ir_value.sql' ],
	[ 'addField', 'templatelinks', 'tl_target_id', 'patch-templatelinks-target_id.sql' ],

	// 1.39
	[ 'addTable', 'user_autocreate_serial', 'patch-user_autocreate_serial.sql' ],
	[ 'modifyField', 'ipblocks_restrictions', 'ir_ipb_id', 'patch-ipblocks_restrictions-ir_ipb_id.sql' ],
	[ 'modifyField', 'ipblocks', 'ipb_id', 'patch-ipblocks-ipb_id.sql' ],
	[ 'modifyField', 'user', 'user_editcount', 'patch-user-user_editcount.sql' ],
	[ 'runMaintenance', MigrateRevisionActorTemp::class ],
	[ 'dropTable', 'revision_actor_temp' ],
	[ 'runMaintenance', UpdateRestrictions::class ],
	[ 'dropField', 'page', 'page_restrictions', 'patch-page-drop-page_restrictions.sql' ],
	[ 'migrateTemplatelinks' ],
	[ 'modifyField', 'templatelinks', 'tl_namespace', 'patch-templatelinks-tl_title-nullable.sql' ],
	[ 'dropField', 'templatelinks', 'tl_title', 'patch-templatelinks-drop-tl_title.sql' ],

	// 1.40
	[ 'addField', 'externallinks', 'el_to_path', 'patch-externallinks-el_to_path.sql' ],

	// 1.41
	[ 'addField', 'user', 'user_is_temp', 'patch-user-user_is_temp.sql' ],
	[ 'runMaintenance', MigrateRevisionCommentTemp::class ],
	[ 'dropTable', 'revision_comment_temp' ],
	[ 'runMaintenance', MigrateExternallinks::class ],
	[ 'modifyField', 'externallinks', 'el_to', 'patch-externallinks-el_to_default.sql' ],
	[ 'addField', 'pagelinks', 'pl_target_id', 'patch-pagelinks-target_id.sql' ],
	[ 'dropField', 'externallinks', 'el_to', 'patch-externallinks-drop-el_to.sql' ],
	[ 'runMaintenance', FixInconsistentRedirects::class ],
	[ 'modifyField', 'image', 'img_size', 'patch-image-img_size_to_bigint.sql' ],
	[ 'modifyField', 'filearchive', 'fa_size', 'patch-filearchive-fa_size_to_bigint.sql' ],
	[ 'modifyField', 'oldimage', 'oi_size', 'patch-oldimage-oi_size_to_bigint.sql' ],
	[ 'modifyField', 'uploadstash', 'us_size', 'patch-uploadstash-us_size_to_bigint.sql' ],

	// 1.42
	[ 'addField', 'user_autocreate_serial', 'uas_year', 'patch-user_autocreate_serial-uas_year.sql' ],
	[ 'addTable', 'block_target', 'patch-block_target.sql' ],
	[ 'dropIndex', 'categorylinks', 'cl_collation_ext', 'patch-drop-cl_collation_ext.sql' ],
	[ 'runMaintenance', PopulateUserIsTemp::class ],
	[ 'dropIndex', 'sites', 'site_type', 'patch-sites-drop_indexes.sql' ],
	[ 'dropIndex', 'iwlinks', 'iwl_prefix_from_title', 'patch-iwlinks-drop-iwl_prefix_from_title.sql' ],

	// 1.43
	[ 'migratePagelinks' ],
	[ 'modifyField', 'revision', 'rev_id', 'patch-revision-cleanup.sql' ],
	[ 'modifyField', 'recentchanges', 'rc_id', 'patch-recentchanges-rc_id-bigint.sql' ],
	[ 'modifyField', 'change_tag', 'ct_rc_id', 'patch-change_tag-ct_rc_id.sql' ],
	[ 'runMaintenance', \MigrateBlocks::class ],
	[ 'dropTable', 'ipblocks' ],
	[ 'dropField', 'pagelinks', 'pl_title', 'patch-pagelinks-drop-pl_title.sql' ],
	[ 'modifyField', 'page', 'page_links_updated', 'patch-page-page_links_updated-noinfinite.sql' ],
	[ 'addPostDatabaseUpdateMaintenance', FixAutoblockLogTitles::class ],
	[ 'changeTableOption', 'searchindex', 'CONVERT TO CHARACTER SET utf8mb4', 'utf8mb4' ],
	[ 'migrateSearchindex' ],
	];
	}

	protected function getInitialUpdateKeys() {
	return [
	'filearchive-fa_major_mime-patch-fa_major_mime-chemical.sql',
	'image-img_major_mime-patch-img_major_mime-chemical.sql',
	'oldimage-oi_major_mime-patch-oi_major_mime-chemical.sql',
	'user_groups-ug_group-patch-ug_group-length-increase-255.sql',
	'user_former_groups-ufg_group-patch-ufg_group-length-increase-255.sql',
	'user_properties-up_property-patch-up_property.sql',
	];
	}

	public function getSchemaVars() {
	global $wgDBTableOptions;

	$vars = [];
	$vars['wgDBTableOptions'] = str_replace( 'TYPE', 'ENGINE', $wgDBTableOptions );
	$vars['wgDBTableOptions'] = str_replace(
	'CHARSET=mysql4',
	'CHARSET=binary',
	$vars['wgDBTableOptions']
	);

	return $vars;
	}

	/**
	* Drops the default value from a field
	*
	* @since 1.36
	* @param string $table
	* @param string $field
	*/
	protected function dropDefault( $table, $field ) {
	$updateKey = "$table-$field-dropDefault";

	if ( $this->updateRowExists( $updateKey ) ) {
	return;
	}

	$info = $this->db->fieldInfo( $table, $field );
	if ( $info && $info->defaultValue() !== false ) {
	$this->output( "Removing '$table.$field' default value.\n" );
	$table = $this->db->tableName( $table );
	$ret = $this->db->query( "ALTER TABLE $table ALTER COLUMN $field DROP DEFAULT", __METHOD__ );

	if ( $ret ) {
	$this->insertUpdateRow( $updateKey );
	}
	}
	}

	/**
	* Set a default value for a field
	*
	* @since 1.36
	* @param string $table
	* @param string $field
	* @param mixed $default
	*/
	protected function setDefault( $table, $field, $default ) {
	$info = $this->db->fieldInfo( $table, $field );
	if ( $info && $info->defaultValue() !== $default ) {
	$this->output( "Changing '$table.$field' default value.\n" );
	$table = $this->db->tableName( $table );
	$this->db->query(
	"ALTER TABLE $table ALTER COLUMN $field SET DEFAULT "
	. $this->db->addQuotes( $default ), __METHOD__
	);
	}
	}

	/**
	* Change the table options of a table
	*
	* @since 1.43
	* @param string $table
	* @param string $tableOption Raw table option that should already have been escaped !!!!
	* @param string $updateName
	*/
	protected function changeTableOption( string $table, string $tableOption, string $updateName ) {
	$updateKey = "$table-tableoption-$updateName";
	if ( $this->updateRowExists( $updateKey ) ) {
	return;
	}

	$this->output( "Changing table options of '$table'.\n" );
	$table = $this->db->tableName( $table );
	$ret = $this->db->query(
	"ALTER TABLE $table $tableOption",
	__METHOD__
	);

	if ( $ret ) {
	$this->insertUpdateRow( $updateKey );
	}
	}

	protected function migrateSearchindex() {
	$updateKey = 'searchindex-pk-titlelength';
	if ( !$this->tableExists( 'searchindex' ) ) {
	return;
	}

	$primaryIndexExists = $this->db->indexExists( 'searchindex', 'PRIMARY' );
	if ( $this->updateRowExists( $updateKey ) \|\| $primaryIndexExists ) {
	$this->output( "...searchindex table has already been migrated.\n" );
	if ( !$this->updateRowExists( $updateKey ) ) {
	$this->insertUpdateRow( $updateKey );
	}
	return;
	}

	$apply = $this->applyPatch( 'patch-searchindex-pk-titlelength.sql', false, '...migrating searchindex table' );

	if ( $apply ) {
	$this->insertUpdateRow( $updateKey );
	}
	}
	}

	/** @deprecated class alias since 1.42 */
	class_alias( MysqlUpdater::class, 'MysqlUpdater' );

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