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efrain |
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<?php
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/**
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* Data Dictionary for SAP DB.
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*
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* This file is part of ADOdb, a Database Abstraction Layer library for PHP.
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*
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* @package ADOdb
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* @link https://adodb.org Project's web site and documentation
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* @link https://github.com/ADOdb/ADOdb Source code and issue tracker
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*
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* The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
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* and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
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* any later version. This means you can use it in proprietary products.
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* See the LICENSE.md file distributed with this source code for details.
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* @license BSD-3-Clause
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* @license LGPL-2.1-or-later
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*
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* @copyright 2000-2013 John Lim
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* @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
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*/
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// security - hide paths
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if (!defined('ADODB_DIR')) die();
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class ADODB2_sapdb extends ADODB_DataDict {
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var $databaseType = 'sapdb';
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var $seqField = false;
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var $renameColumn = 'RENAME COLUMN %s.%s TO %s';
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function ActualType($meta)
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{
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$meta = strtoupper($meta);
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/*
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* Add support for custom meta types. We do this
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* first, that allows us to override existing types
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*/
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if (isset($this->connection->customMetaTypes[$meta]))
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return $this->connection->customMetaTypes[$meta]['actual'];
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switch($meta) {
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case 'C': return 'VARCHAR';
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case 'XL':
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case 'X': return 'LONG';
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case 'C2': return 'VARCHAR UNICODE';
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case 'X2': return 'LONG UNICODE';
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case 'B': return 'LONG';
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case 'D': return 'DATE';
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case 'TS':
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case 'T': return 'TIMESTAMP';
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case 'L': return 'BOOLEAN';
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case 'I': return 'INTEGER';
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case 'I1': return 'FIXED(3)';
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case 'I2': return 'SMALLINT';
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case 'I4': return 'INTEGER';
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case 'I8': return 'FIXED(20)';
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case 'F': return 'FLOAT(38)';
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case 'N': return 'FIXED';
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default:
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return $meta;
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}
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}
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function MetaType($t,$len=-1,$fieldobj=false)
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{
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if (is_object($t)) {
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$fieldobj = $t;
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$t = $fieldobj->type;
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$len = $fieldobj->max_length;
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}
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$t = strtoupper($t);
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if (array_key_exists($t,$this->connection->customActualTypes))
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return $this->connection->customActualTypes[$t];
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static $maxdb_type2adodb = array(
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'VARCHAR' => 'C',
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'CHARACTER' => 'C',
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'LONG' => 'X', // no way to differ between 'X' and 'B' :-(
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'DATE' => 'D',
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'TIMESTAMP' => 'T',
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'BOOLEAN' => 'L',
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'INTEGER' => 'I4',
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'SMALLINT' => 'I2',
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'FLOAT' => 'F',
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'FIXED' => 'N',
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);
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$type = isset($maxdb_type2adodb[$t]) ? $maxdb_type2adodb[$t] : ADODB_DEFAULT_METATYPE;
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// convert integer-types simulated with fixed back to integer
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if ($t == 'FIXED' && !$fieldobj->scale && ($len == 20 || $len == 3)) {
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$type = $len == 20 ? 'I8' : 'I1';
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}
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if ($fieldobj->auto_increment) $type = 'R';
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return $type;
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}
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// return string must begin with space
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function _CreateSuffix($fname,&$ftype,$fnotnull,$fdefault,$fautoinc,$fconstraint,$funsigned)
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{
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$suffix = '';
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if ($funsigned) $suffix .= ' UNSIGNED';
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if ($fnotnull) $suffix .= ' NOT NULL';
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if ($fautoinc) $suffix .= ' DEFAULT SERIAL';
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elseif (strlen($fdefault)) $suffix .= " DEFAULT $fdefault";
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if ($fconstraint) $suffix .= ' '.$fconstraint;
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return $suffix;
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}
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function AddColumnSQL($tabname, $flds)
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{
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$tabname = $this->TableName ($tabname);
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$sql = array();
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list($lines,$pkey) = $this->_GenFields($flds);
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return array( 'ALTER TABLE ' . $tabname . ' ADD (' . implode(', ',$lines) . ')' );
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}
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function AlterColumnSQL($tabname, $flds, $tableflds='', $tableoptions='')
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{
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$tabname = $this->TableName ($tabname);
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$sql = array();
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list($lines,$pkey) = $this->_GenFields($flds);
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return array( 'ALTER TABLE ' . $tabname . ' MODIFY (' . implode(', ',$lines) . ')' );
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}
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function DropColumnSQL($tabname, $flds, $tableflds='',$tableoptions='')
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{
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$tabname = $this->TableName ($tabname);
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if (!is_array($flds)) $flds = explode(',',$flds);
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foreach($flds as $k => $v) {
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$flds[$k] = $this->NameQuote($v);
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}
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return array( 'ALTER TABLE ' . $tabname . ' DROP (' . implode(', ',$flds) . ')' );
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}
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}
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