<?php
/**
* @brief Background Task
* @author <a href='https://www.invisioncommunity.com'>Invision Power Services, Inc.</a>
* @copyright (c) Invision Power Services, Inc.
* @license https://www.invisioncommunity.com/legal/standards/
* @package Invision Community
* @subpackage Gallery
* @since 04 Dec 2017
*/
namespace IPS\gallery\extensions\core\Queue;
/* To prevent PHP errors (extending class does not exist) revealing path */
if ( !defined( '\IPS\SUITE_UNIQUE_KEY' ) )
{
header( ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' ) . ' 403 Forbidden' );
exit;
}
/**
* Background Task
*/
class _RebuildGalleryImages
{
/**
* @brief Number of content items to rebuild per cycle
*/
public $rebuild = 20;
/**
* Parse data before queuing
*
* @param array $data
* @return array
*/
public function preQueueData( $data )
{
try
{
$data['count'] = \IPS\Db::i()->select( 'COUNT(*)', 'gallery_images', array( 'image_media=?', 0 ) )->first();
}
catch( \Exception $ex )
{
throw new \OutOfRangeException;
}
if( $data['count'] == 0 )
{
return null;
}
$data['indexed'] = 0;
return $data;
}
/**
* Run Background Task
*
* @param mixed $data Data as it was passed to \IPS\Task::queue()
* @param int $offset Offset
* @return int New offset
* @throws \IPS\Task\Queue\OutOfRangeException Indicates offset doesn't exist and thus task is complete
*/
public function run( &$data, $offset )
{
if ( !\IPS\Application::appIsEnabled( 'gallery' ) )
{
throw new \IPS\Task\Queue\OutOfRangeException;
}
$iterator = new \IPS\Patterns\ActiveRecordIterator( \IPS\Db::i()->select( '*', 'gallery_images', array( array( 'image_media=? AND image_id>?', 0, $offset ) ), 'image_id ASC', array( 0, $this->rebuild ) ), 'IPS\\gallery\\Image' );
$last = NULL;
foreach( $iterator as $image )
{
try
{
$image->deleteThumbnails();
$image->buildThumbnails();
$image->save();
}
catch ( \Exception $e ) {}
$last = $image->id;
$data['indexed']++;
}
if( $last === NULL )
{
throw new \IPS\Task\Queue\OutOfRangeException;
}
return $last;
}
/**
* Get Progress
*
* @param mixed $data Data as it was passed to \IPS\Task::queue()
* @param int $offset Offset
* @return array( 'text' => 'Doing something...', 'complete' => 50 ) Text explaining task and percentage complete
* @throws \OutOfRangeException Indicates offset doesn't exist and thus task is complete
*/
public function getProgress( $data, $offset )
{
return array( 'text' => \IPS\Member::loggedIn()->language()->addToStack('rebuilding_gallery_images' ), 'complete' => $data['count'] ? ( round( 100 / $data['count'] * $data['indexed'], 2 ) ) : 100 );
}
}