e4c7272976
Update cases where one of the IConnectionProvider methods is called
immediately.
This doesn't really change anything, but I hope it helps promote
getConnectionProvider() as the common way to do this.
Follow-up to 8604c384f6.
Change-Id: Id0e7d02bab0c570343c2b1f03c70b44ee39db112
72 lines
2.2 KiB
PHP
72 lines
2.2 KiB
PHP
<?php
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/**
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* Efficient concatenated text storage.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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use MediaWiki\MediaWikiServices;
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/**
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* To speed up conversion from 1.4 to 1.5 schema, text rows can refer to the
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* leftover cur table as the backend. This avoids expensively copying hundreds
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* of megabytes of data during the conversion downtime.
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*/
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class HistoryBlobCurStub {
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/** @var int */
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public $mCurId;
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/**
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* @param int $curid The cur_id pointed to
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*/
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public function __construct( $curid = 0 ) {
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$this->mCurId = $curid;
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}
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/**
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* Sets the location (cur_id) of the main object to which this object
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* points
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*
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* @param int $id
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*/
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public function setLocation( $id ) {
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$this->mCurId = $id;
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}
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/**
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* @return string|false
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*/
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public function getText() {
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$dbr = MediaWikiServices::getInstance()->getConnectionProvider()->getReplicaDatabase();
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$row = $dbr->newSelectQueryBuilder()
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->select( [ 'cur_text' ] )
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->from( 'cur' )
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->where( [ 'cur_id' => $this->mCurId ] )
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->caller( __METHOD__ )->fetchRow();
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return $row ? $row->cur_text : false;
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}
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}
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// Blobs generated by MediaWiki < 1.5 on PHP 4 were serialized with the
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// class name coerced to lowercase. We can improve efficiency by adding
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// autoload entries for the lowercase variants of these classes (T166759).
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// The code below is never executed, but it is picked up by the AutoloadGenerator
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// parser, which scans for class_alias() calls.
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/*
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class_alias( HistoryBlobCurStub::class, 'historyblobcurstub' );
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*/
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