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<?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 MediaWiki\Utils\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.
*
* @see https://www.mediawiki.org/wiki/Manual:Modeling_pages
*
* @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|false $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 = $row;
}
/**
* False if the page has had more than one edit.
*/
public function isNew(): bool {
return (bool)$this->row->page_is_new;
}
/**
* True if the page is a redirect.
*/
public function isRedirect(): bool {
return (bool)$this->row->page_is_redirect;
}
/**
* The ID of the page'S latest revision.
*
* @param string|false $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.
*/
public function getTouched(): string {
return MWTimestamp::convert( TS_MW, $this->row->page_touched );
}
/**
* Language in which the page is written.
*/
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;
}
}