StringIterator.php

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<?php
/***************************************************************************
 *   Copyright (C) 2005-2020 by Ferenc Veres                                                       *
 *   lion@netngine.hu                                                                                                      *
 *                                                                         *
 *   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 3 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, see <http://www.gnu.org/licenses/>. *
 ***************************************************************************/
 include_once('TranslationString.php');

class StringIterator implements Iterator
{
        private $ProjectID;             
        private $ProjectStrings = [];   
        private $Current;               
        private $IsValid;               
        public function __construct($projectID)
        {
                $DB =& GetDbConn();
                $Tables =& GetTables();

                $this->ProjectID = $projectID;

                // Fetch all strings of the project from the DB.
                $rs = $DB->Execute("SELECT ID, Original, LocaleID, Translation, SentenceID, LastSeen, RowOrder FROM ".$Tables["Strings"]." WHERE ProjectID=? ORDER BY RowOrder", array($this->ProjectID));

                while($row = $rs->FetchRow())
                {
                        // Add fully initializes strings to the array.
                        $this->ProjectStrings[] = new TranslationString(
                                $row["ID"],
                                $this->ProjectID,
                                $row["Original"],
                                $row["LocaleID"],
                                $row["Translation"],
                                $row["SentenceID"],
                                $row["LastSeen"],
                                $row["RowOrder"]);
                }
                $this->rewind();
        }

        /* Iterator interface */

        public function rewind()
        {
                $this->Current = 0;
        }
        
        public function hasMore()
        {
                return (count($this->ProjectStrings) > $this->Current);
        }
        
        public function key()
        {
                return $this->Current;
        }
        
        public function current()
        {
                return $this->ProjectStrings[$this->Current];
        }
        
        public function next()
        {
                $this->Current++;
        }
        
        public function valid()
        {
                return (count($this->ProjectStrings) > $this->Current);
        }
}