egroupware_official/setup/inc/class.schema_proc_array.inc.php

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2001-07-30 17:59:25 +02:00
<?php
/**************************************************************************\
* phpGroupWare - Setup *
* http://www.phpgroupware.org *
* -------------------------------------------- *
* 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 2 of the License, or (at your *
* option) any later version. *
\**************************************************************************/
/* $Id$ */
class schema_proc_array
{
var $m_sStatementTerminator;
function schema_proc_array()
{
$this->m_sStatementTerminator = ";";
}
// Return a type suitable for DDL abstracted array
function TranslateType($sType, $iPrecision = 0, $iScale = 0, &$sTranslated)
{
$sTranslated = $sType;
return (strlen($sTranslated) > 0);
}
function TranslateDefault($sDefault)
{
return $sDefault;
}
function GetPKSQL($sFields)
{
return "";
}
function GetUCSQL($sFields)
{
return "";
}
function _GetColumns($oProc, &$aTables, $sTableName, &$sColumns, $sDropColumn = "")
{
$sColumns = "";
while (list($sName, $aJunk) = each($aTables[$sTableName]["fd"]))
{
if ($sColumns != "")
{
$sColumns .= ",";
}
$sColumns .= $sName;
}
return true;
}
function DropTable($oProc, &$aTables, $sTableName)
{
if (IsSet($aTables[$sTableName]))
{
UnSet($aTables[$sTableName]);
}
return true;
}
function DropColumn($oProc, &$aTables, $sTableName, $aNewTableDef, $sColumnName, $bCopyData = true)
{
if (IsSet($aTables[$sTableName]))
{
if (IsSet($aTables[$sTableName]["fd"][$sColumnName]))
{
UnSet($aTables[$sTableName]["fd"][$sColumnName]);
}
}
return true;
}
function RenameTable($oProc, &$aTables, $sOldTableName, $sNewTableName)
{
$aNewTables = array();
while (list($sTableName, $aTableDef) = each($aTables))
{
if ($sTableName == $sOldTableName)
{
$aNewTables[$sNewTableName] = $aTableDef;
}
else
{
$aNewTables[$sTableName] = $aTableDef;
}
}
$aTables = $aNewTables;
return true;
}
function RenameColumn($oProc, &$aTables, $sTableName, $sOldColumnName, $sNewColumnName, $bCopyData = true)
{
if (IsSet($aTables[$sTableName]))
{
$aNewTableDef = array();
reset($aTables[$sTableName]["fd"]);
while (list($sColumnName, $aColumnDef) = each($aTables[$sTableName]["fd"]))
{
if ($sColumnName == $sOldColumnName)
{
$aNewTableDef[$sNewColumnName] = $aColumnDef;
}
else
{
$aNewTableDef[$sColumnName] = $aColumnDef;
}
}
$aTables[$sTableName]["fd"] = $aNewTableDef;
reset($aTables[$sTableName]["pk"]);
while (list($key, $sColumnName) = each($aTables[$sTableName]["pk"]))
{
if ($sColumnName == $sOldColumnName)
{
$aTables[$sTableName]["pk"][$key] = $sNewColumnName;
}
}
reset($aTables[$sTableName]["uc"]);
while (list($key, $sColumnName) = each($aTables[$sTableName]["uc"]))
{
if ($sColumnName == $sOldColumnName)
{
$aTables[$sTableName]["uc"][$key] = $sNewColumnName;
}
}
}
return true;
}
function AlterColumn($oProc, &$aTables, $sTableName, $sColumnName, &$aColumnDef, $bCopyData = true)
{
if (IsSet($aTables[$sTableName]))
{
if (IsSet($aTables[$sTableName]["fd"][$sColumnName]))
{
$aTables[$sTableName]["fd"][$sColumnName] = $aColumnDef;
}
}
return true;
}
function AddColumn($oProc, &$aTables, $sTableName, $sColumnName, &$aColumnDef)
{
if (IsSet($aTables[$sTableName]))
{
if (!IsSet($aTables[$sTableName]["fd"][$sColumnName]))
{
$aTables[$sTableName]["fd"][$sColumnName] = $aColumnDef;
}
}
return true;
}
function CreateTable($oProc, &$aTables, $sTableName, $aTableDef)
{
if (!IsSet($aTables[$sTableName]))
{
$aTables[$sTableName] = $aTableDef;
}
return true;
}
}
?>