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<?php
/**
 * Borland Interbase driver.
 *
 * Support Borland Interbase 6.5 and later
 *
 * This file is part of ADOdb, a Database Abstraction Layer library for PHP.
 *
 * @package ADOdb
 * @link https://adodb.org Project's web site and documentation
 * @link https://github.com/ADOdb/ADOdb Source code and issue tracker
 *
 * The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
 * and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
 * any later version. This means you can use it in proprietary products.
 * See the LICENSE.md file distributed with this source code for details.
 * @license BSD-3-Clause
 * @license LGPL-2.1-or-later
 *
 * @copyright 2000-2013 John Lim
 * @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
 */

// security - hide paths
if (!defined('ADODB_DIR')) die();

include_once(ADODB_DIR."/drivers/adodb-ibase.inc.php");

class ADODB_borland_ibase extends ADODB_ibase {
        var $databaseType = "borland_ibase";

        function BeginTrans()
        {
                if ($this->transOff) return true;
                $this->transCnt += 1;
                $this->autoCommit = false;
                $this->_transactionID = ibase_trans($this->ibasetrans, $this->_connectionID);
                return $this->_transactionID;
        }

        function ServerInfo()
        {
                $arr['dialect'] = $this->dialect;
                switch($arr['dialect']) {
                case '':
                case '1': $s = 'Interbase 6.5, Dialect 1'; break;
                case '2': $s = 'Interbase 6.5, Dialect 2'; break;
                default:
                case '3': $s = 'Interbase 6.5, Dialect 3'; break;
                }
                $arr['version'] = '6.5';
                $arr['description'] = $s;
                return $arr;
        }

        // Note that Interbase 6.5 uses ROWS instead - don't you love forking wars!
        //              SELECT col1, col2 FROM table ROWS 5 -- get 5 rows
        //              SELECT col1, col2 FROM TABLE ORDER BY col1 ROWS 3 TO 7 -- first 5 skip 2
        // Firebird uses
        //              SELECT FIRST 5 SKIP 2 col1, col2 FROM TABLE
        function SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs2cache=0)
        {
                $nrows = (int) $nrows;
                $offset = (int) $offset;
                if ($nrows > 0) {
                        if ($offset <= 0) $str = " ROWS $nrows ";
                        else {
                                $a = $offset+1;
                                $b = $offset+$nrows;
                                $str = " ROWS $a TO $b";
                        }
                } else {
                        // ok, skip
                        $a = $offset + 1;
                        $str = " ROWS $a TO 999999999"; // 999 million
                }
                $sql .= $str;

                return ($secs2cache) ?
                                $this->CacheExecute($secs2cache,$sql,$inputarr)
                        :
                                $this->Execute($sql,$inputarr);
        }

};


class  ADORecordSet_borland_ibase extends ADORecordSet_ibase {

        var $databaseType = "borland_ibase";

}