class.ilShopNewsItemList.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */
 
class ilShopNewsItemList implements Iterator
{
        const TYPE_NEWS = 1;
        const TYPE_ARCHIVE = 2;
        
        private static $instance = null;
        
        private $news = array();
        private $mode = self::TYPE_NEWS;
        private $archive_date = null;
        private $public_section = false;        
        
        private function __construct()
        {
        }
        
        private function __clone()
        {
        }
        
        public function hasItems()
        {
                return (bool)count($this->news);
        }
        
        public function rewind()
        {
                return reset($this->news);
        }
        
        public function valid()
        {
                return (bool)current($this->news);
        }
 
        public function current()
        {
                return current($this->news);
        }
 
        public function key()
        {
                return key($this->news);
        }
 
        public function next()
        {
                return next($this->news);
        }
        
        public function _getInstance()
        {
                if(!isset(self::$instance))
                {
                        self::$instance = new ilShopNewsItemList();
                }
                
                return self::$instance;
        }
        
        public function read()
        {
                global $ilDB;
                
                $this->news = array();
                
                $types = array();
                $data = array();
 
                $query = 'SELECT * FROM payment_news WHERE 1 = 1 ';             
                if($this->isPublicSection())
                {
                        $query .= "AND visibility = %s ";
                        $types[] = 'text';
                        $data[] = 'public';
                }               
                if($this->getArchiveDate() !== null && $this->getArchiveDate() > 0)
                {
                        switch($this->getMode())
                        {
                                case self::TYPE_NEWS:
                                        $query .= "AND creation_date >= %s ";
                                        $types[] = 'timestamp';
                                        $data[] = date('Y-m-d H:i:s', $this->getArchiveDate());
                                        break;
                                        
                                case self::TYPE_ARCHIVE:
                                        $query .= "AND creation_date < %s ";
                                        $types[] = 'timestamp';
                                        $data[] = date('Y-m-d H:i:s', $this->getArchiveDate());
                                        break;
                        }                       
                }               
                $query .= 'ORDER BY update_date DESC ';         
 
                $result = $ilDB->queryF($query, $types, $data);
                
                while($record = $ilDB->fetchAssoc($result))
                {
                   $oNewsItem = new ilShopNewsItem();
                   $oNewsItem->setId($record['news_id']);
                   $oNewsItem->setCreationDate($record['creation_date']);
                   $oNewsItem->setUpdateDate($record['update_date']);
                   $oNewsItem->setTitle($record['news_title']);
                   $oNewsItem->setContent($record['news_content']);
                   $oNewsItem->setVisibility($record['visibility']);
                   $oNewsItem->setUserId($record['user_id']);
                   
                   $this->news[] = $oNewsItem;                     
                }
                
                return $this;
        }
        
        public function reload()
        {
                $this->read();
                
                return $this;
        }
                
        public function setArchiveDate($a_archive_date)
        {
                $this->archive_date = $a_archive_date;
                
                return $this;
        }       
        public function getArchiveDate()
        {
                return $this->archive_date;
        }
        public function setPublicSection($a_public_section)
        {
                $this->public_section = $a_public_section;
                
                return $this;
        }       
        public function isPublicSection()
        {
                return $this->public_section;
        }
        public function setMode($a_mode)
        {
                $this->mode = $a_mode;
                
                return $this;
        }       
        public function getMode()
        {
                return $this->mode;
        }
}
?>