fd3a695230
This causes Title to no longer look up fields in the database individually, but use LinkCache instead to load an entire row from the page table at once. This patch also causes Title to use in-process caching for some getters that did not use caching before, such as isNewPage() and getTouched(). These methods do not appear to be used on critical code paths that involve database updates. Note that getTouched() used to take an options $db parametr. This appears to be unused, and has been deprecated in favor of a $flags parameter, for consistency with other getters on the class. DEPLOY: Risky! This re-implements the internal caching logic of Title and slightly modifies caching semantics in some cases. This may have unforeseen consequences. Bug: T285389 Depends-On: I103b9e1d2bf594bfc1b0ea12b980dd20bb911c3a Change-Id: I2df81df7186025e001520f24fd498623c7184772
143 lines
3.5 KiB
PHP
143 lines
3.5 KiB
PHP
<?php
|
|
/**
|
|
* 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
|
|
*/
|
|
|
|
namespace MediaWiki\Page;
|
|
|
|
use MWTimestamp;
|
|
use stdClass;
|
|
use Wikimedia\Assert\Assert;
|
|
|
|
/**
|
|
* Immutable data record representing an editable page on a wiki.
|
|
* Corresponds to a row in the page table.
|
|
*
|
|
* @since 1.36
|
|
*/
|
|
class PageStoreRecord extends PageIdentityValue implements ExistingPageRecord {
|
|
|
|
/**
|
|
* Fields that must be present in the row object passed to the constructor.
|
|
* Note that page_lang is optional, so it is not included here.
|
|
*
|
|
* @since 1.37
|
|
*/
|
|
public const REQUIRED_FIELDS = [
|
|
'page_id',
|
|
'page_namespace',
|
|
'page_title',
|
|
'page_is_redirect',
|
|
'page_is_new',
|
|
'page_latest',
|
|
'page_touched',
|
|
];
|
|
|
|
/**
|
|
* Fields from the page table.
|
|
*
|
|
* @var stdClass
|
|
*/
|
|
private $row;
|
|
|
|
/**
|
|
* The $row object must provide all fields listed in PageStoreRecord::REQUIRED_FIELDS.
|
|
*
|
|
* @param stdClass $row A row from the page table
|
|
* @param string|bool $wikiId The Id of the wiki this page belongs to,
|
|
* or self::LOCAL for the local wiki.
|
|
*/
|
|
public function __construct( stdClass $row, $wikiId ) {
|
|
foreach ( self::REQUIRED_FIELDS as $field ) {
|
|
Assert::parameter( isset( $row->$field ), '$row->' . $field, 'is required' );
|
|
}
|
|
|
|
Assert::parameter( $row->page_id > 0, '$pageId', 'must be greater than zero (page must exist)' );
|
|
|
|
parent::__construct( $row->page_id, $row->page_namespace, $row->page_title, $wikiId );
|
|
|
|
$this->row = $row;
|
|
}
|
|
|
|
/**
|
|
* False if the page has had more than one edit.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isNew(): bool {
|
|
return (bool)$this->row->page_is_new;
|
|
}
|
|
|
|
/**
|
|
* True if the page is a redirect.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isRedirect(): bool {
|
|
return (bool)$this->row->page_is_redirect;
|
|
}
|
|
|
|
/**
|
|
* The ID of the page'S latest revision.
|
|
*
|
|
* @param bool $wikiId
|
|
*
|
|
* @return int
|
|
*/
|
|
public function getLatest( $wikiId = self::LOCAL ): int {
|
|
$this->assertWiki( $wikiId );
|
|
return (int)$this->row->page_latest;
|
|
}
|
|
|
|
/**
|
|
* Timestamp at which the page was last rerendered.
|
|
*
|
|
* @return string
|
|
*/
|
|
public function getTouched(): string {
|
|
return MWTimestamp::convert( TS_MW, $this->row->page_touched );
|
|
}
|
|
|
|
/**
|
|
* Language in which the page is written.
|
|
*
|
|
* @return ?string
|
|
*/
|
|
public function getLanguage(): ?string {
|
|
return $this->getField( 'page_lang' );
|
|
}
|
|
|
|
/**
|
|
* Return the raw value for the given field as returned by the database query.
|
|
*
|
|
* Numeric values may be encoded as strings.
|
|
* Boolean values may be represented as integers (or numeric strings).
|
|
* Timestamps will use the database's native format.
|
|
*
|
|
* @internal
|
|
*
|
|
* @param string $field
|
|
*
|
|
* @return string|int|bool|null
|
|
*/
|
|
public function getField( string $field ) {
|
|
// Field may be missing entirely.
|
|
return $this->row->$field ?? null;
|
|
}
|
|
|
|
}
|