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<?php
namespace Mediawiki\DataModel;
use InvalidArgumentException;
use RuntimeException;
/**
* Represents a collection or Page classes
* @author Addshore
*/
class Pages {
/**
* @var Page[]
*/
private $pages;
/**
* @param Page[] $pages
*/
public function __construct( $pages = array() ) {
$this->pages = array();
$this->addPages( $pages );
}
/**
* @param Page[]|Pages $pages
*
* @throws InvalidArgumentException
*/
public function addPages( $pages ) {
if( !is_array( $pages ) && !$pages instanceof Pages ) {
throw new InvalidArgumentException( '$pages needs to either be an array or a Pages object' );
}
if( $pages instanceof Pages ) {
$pages = $pages->toArray();
}
foreach( $pages as $page ) {
$this->addPage( $page );
}
}
/**
* @param Page $page
*/
public function addPage( Page $page ) {
$this->pages[$page->getId()] = $page;
}
/**
* @param int $id
*
* @return bool
*/
public function hasPageWithId( $id ){
return array_key_exists( $id, $this->pages );
}
/**
* @param Page $page
*
* @return bool
*/
public function hasPage( Page $page ){
return array_key_exists( $page->getId(), $this->pages );
}
/**
* @return Page|null Page or null if there is no page
*/
public function getLatest() {
if( empty( $this->pages ) ) {
return null;
}
return $this->pages[ max( array_keys( $this->pages ) ) ];
}
/**
* @param int $pageid
*
* @throws RuntimeException
* @return Page
*/
public function get( $pageid ){
if( $this->hasPageWithId( $pageid ) ){
return $this->pages[$pageid];
}
throw new RuntimeException( 'No such page loaded in Pages object' );
}
/**
* @return Page[]
*/
public function toArray() {
return $this->pages;
}
}
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