forked from extern/egroupware
456 lines
10 KiB
PHP
456 lines
10 KiB
PHP
<?php
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/**************************************************************************\
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* phpGroupWare - Setup *
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* http://www.phpgroupware.org *
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* -------------------------------------------- *
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* This file written by Michael Dean<mdean@users.sourceforge.net> *
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* and Miles Lott<milosch@phpgroupware.org> *
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* -------------------------------------------- *
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* This program is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation; either version 2 of the License, or (at your *
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* option) any later version. *
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\**************************************************************************/
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/* $Id$ */
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class schema_proc
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{
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var $m_oTranslator;
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var $m_oDeltaProc;
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var $m_odb;
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var $m_aTables;
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var $m_bDeltaOnly;
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function schema_proc($dbms)
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{
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$this->m_oTranslator = CreateObject('phpgwapi.schema_proc_' . $dbms);
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$this->m_oDeltaProc = CreateObject('phpgwapi.schema_proc_array');
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$this->m_aTables = array();
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$this->m_bDeltaOnly = False; // Default to false here in case it's just a CreateTable script
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}
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function GenerateScripts($aTables, $bOutputHTML=False)
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{
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if (!is_array($aTables))
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{
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return False;
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}
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$this->m_aTables = $aTables;
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reset($this->m_aTables);
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$sAllTableSQL = '';
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while (list($sTableName, $aTableDef) = each($this->m_aTables))
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{
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$sSequenceSQL = '';
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if($this->_GetTableSQL($sTableName, $aTableDef, $sTableSQL, $sSequenceSQL))
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{
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$sTableSQL = "CREATE TABLE $sTableName (\n$sTableSQL\n)"
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. $this->m_oTranslator->m_sStatementTerminator;
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if($sSequenceSQL != '')
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{
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$sAllTableSQL .= $sSequenceSQL . "\n";
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}
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$sAllTableSQL .= $sTableSQL . "\n\n";
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}
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else
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{
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if($bOutputHTML)
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{
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print('<br>Failed generating script for <b>' . $sTableName . '</b><br>');
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}
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return false;
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}
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}
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if($bOutputHTML)
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{
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print('<pre>' . $sAllTableSQL . '</pre><br><br>');
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}
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return True;
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}
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function ExecuteScripts($aTables, $bOutputHTML=False)
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{
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if(!is_array($aTables) || !IsSet($this->m_odb))
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{
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return False;
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}
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reset($aTables);
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$this->m_aTables = $aTables;
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while(list($sTableName, $aTableDef) = each($aTables))
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{
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if($this->CreateTable($sTableName, $aTableDef))
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{
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if($bOutputHTML)
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{
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echo '<br>Create Table <b>' . $sTableName . '</b>';
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}
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}
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else
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{
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if($bOutputHTML)
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{
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echo '<br>Create Table Failed For <b>' . $sTableName . '</b>';
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}
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return False;
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}
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}
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return True;
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}
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function DropAllTables($aTables, $bOutputHTML=False)
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{
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if(!is_array($aTables) || !isset($this->m_odb))
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{
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return False;
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}
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$this->m_aTables = $aTables;
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reset($this->m_aTables);
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while(list($sTableName, $aTableDef) = each($this->m_aTables))
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{
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if($this->DropTable($sTableName))
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{
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if($bOutputHTML)
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{
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echo '<br>Drop Table <b>' . $sTableSQL . '</b>';
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}
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}
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else
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{
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return False;
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}
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}
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return True;
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}
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function DropTable($sTableName)
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{
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$retVal = $this->m_oDeltaProc->DropTable($this, $this->m_aTables, $sTableName);
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if($this->m_bDeltaOnly)
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{
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return $retVal;
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}
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return $retVal && $this->m_oTranslator->DropTable($this, $this->m_aTables, $sTableName);
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}
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function DropColumn($sTableName, $aTableDef, $sColumnName, $bCopyData = true)
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{
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$retVal = $this->m_oDeltaProc->DropColumn($this, $this->m_aTables, $sTableName, $aTableDef, $sColumnName, $bCopyData);
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if($this->m_bDeltaOnly)
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{
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return $retVal;
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}
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return $retVal && $this->m_oTranslator->DropColumn($this, $this->m_aTables, $sTableName, $aTableDef, $sColumnName, $bCopyData);
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}
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function RenameTable($sOldTableName, $sNewTableName)
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{
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$retVal = $this->m_oDeltaProc->RenameTable($this, $this->m_aTables, $sOldTableName, $sNewTableName);
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if($this->m_bDeltaOnly)
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{
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return $retVal;
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}
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return $retVal && $this->m_oTranslator->RenameTable($this, $this->m_aTables, $sOldTableName, $sNewTableName);
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}
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function RenameColumn($sTableName, $sOldColumnName, $sNewColumnName, $bCopyData=True)
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{
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$retVal = $this->m_oDeltaProc->RenameColumn($this, $this->m_aTables, $sTableName, $sOldColumnName, $sNewColumnName, $bCopyData);
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if($this->m_bDeltaOnly)
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{
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return $retVal;
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}
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return $retVal && $this->m_oTranslator->RenameColumn($this, $this->m_aTables, $sTableName, $sOldColumnName, $sNewColumnName, $bCopyData);
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}
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function AlterColumn($sTableName, $sColumnName, $aColumnDef, $bCopyData=True)
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{
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$retVal = $this->m_oDeltaProc->AlterColumn($this, $this->m_aTables, $sTableName, $sColumnName, $aColumnDef, $bCopyData);
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if($this->m_bDeltaOnly)
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{
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return $retVal;
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}
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return $retVal && $this->m_oTranslator->AlterColumn($this, $this->m_aTables, $sTableName, $sColumnName, $aColumnDef, $bCopyData);
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}
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function AddColumn($sTableName, $sColumnName, $aColumnDef)
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{
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$retVal = $this->m_oDeltaProc->AddColumn($this, $this->m_aTables, $sTableName, $sColumnName, $aColumnDef);
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if($this->m_bDeltaOnly)
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{
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return $retVal;
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}
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return $retVal && $this->m_oTranslator->AddColumn($this, $this->m_aTables, $sTableName, $sColumnName, $aColumnDef);
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}
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function CreateTable($sTableName, $aTableDef)
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{
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$retVal = $this->m_oDeltaProc->CreateTable($this, $this->m_aTables, $sTableName, $aTableDef);
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if($this->m_bDeltaOnly)
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{
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return $retVal;
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}
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return $retVal && $this->m_oTranslator->CreateTable($this, $this->m_aTables, $sTableName, $aTableDef);
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}
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function f($value)
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{
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if($this->m_bDeltaOnly)
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{
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// Don't care, since we are processing deltas only
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return False;
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}
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return $this->m_odb->f($value);
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}
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function num_rows()
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{
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if($this->m_bDeltaOnly)
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{
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// If not False, we will cause while loops calling us to hang
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return False;
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}
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return $this->m_odb->num_rows();
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}
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function next_record()
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{
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if($this->m_bDeltaOnly)
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{
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// If not False, we will cause while loops calling us to hang
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return False;
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}
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return $this->m_odb->next_record();
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}
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function query($sQuery, $line='', $file='')
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{
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if($this->m_bDeltaOnly)
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{
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// Don't run this query, since we are processing deltas only
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return True;
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}
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return $this->m_odb->query($sQuery, $line, $file);
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}
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function _GetTableSQL($sTableName, $aTableDef, &$sTableSQL, &$sSequenceSQL)
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{
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global $DEBUG;
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if(!is_array($aTableDef))
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{
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return False;
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}
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$sTableSQL = '';
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reset($aTableDef['fd']);
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while(list($sFieldName, $aFieldAttr) = each($aTableDef['fd']))
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{
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$sFieldSQL = '';
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if($this->_GetFieldSQL($aFieldAttr, $sFieldSQL))
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{
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if($sTableSQL != '')
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{
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$sTableSQL .= ",\n";
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}
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$sTableSQL .= "$sFieldName $sFieldSQL";
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if($aFieldAttr['type'] == 'auto')
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{
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$this->m_oTranslator->GetSequenceSQL($sTableName, $sSequenceSQL);
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if($sSequenceSQL != '')
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{
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$sTableSQL .= sprintf(" DEFAULT nextval('seq_%s')", $sTableName);
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}
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}
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}
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else
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{
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if($DEBUG) { echo 'GetFieldSQL failed for ' . $sFieldName; }
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return False;
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}
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}
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$sUCSQL = '';
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$sPKSQL = '';
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if(count($aTableDef['pk']) > 0)
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{
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if(!$this->_GetPK($aTableDef['pk'], $sPKSQL))
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{
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if($bOutputHTML)
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{
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print('<br>Failed getting primary key<br>');
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}
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return False;
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}
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}
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if(count($aTableDef['uc']) > 0)
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{
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if(!$this->_GetUC($aTableDef['uc'], $sUCSQL))
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{
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if($bOutputHTML)
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{
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print('<br>Failed getting unique constraint<br>');
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}
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return False;
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}
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}
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if($sPKSQL != '')
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{
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$sTableSQL .= ",\n" . $sPKSQL;
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}
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if($sUCSQL != '')
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{
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$sTableSQL .= ",\n" . $sUCSQL;
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}
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return True;
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}
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// Get field DDL
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function _GetFieldSQL($aField, &$sFieldSQL)
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{
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global $DEBUG;
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if($DEBUG) { echo'<br>_GetFieldSQL(): Incoming ARRAY: '; var_dump($aField); }
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if(!is_array($aField))
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{
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return false;
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}
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$sType = '';
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$iPrecision = 0;
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$iScale = 0;
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$sDefault = '';
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$bNullable = true;
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reset($aField);
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while(list($sAttr, $vAttrVal) = each($aField))
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{
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switch ($sAttr)
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{
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case 'type':
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$sType = $vAttrVal;
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break;
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case 'precision':
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$iPrecision = (int)$vAttrVal;
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break;
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case 'scale':
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$iScale = (int)$vAttrVal;
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break;
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case 'default':
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$sDefault = $vAttrVal;
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if($DEBUG) { echo'<br>_GetFieldSQL(): Default="' . $sDefault . '"'; }
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break;
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case 'nullable':
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$bNullable = $vAttrVal;
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break;
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}
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}
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// Translate the type for the DBMS
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if($this->m_oTranslator->TranslateType($sType, $iPrecision, $iScale, $sFieldSQL))
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{
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if($bNullable == False)
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{
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$sFieldSQL .= ' NOT NULL';
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}
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if($sDefault != '')
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{
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if($DEBUG) { echo'<br>_GetFieldSQL(): Calling TranslateDefault for "' . $sDefault . '"'; }
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// Get default DDL - useful for differences in date defaults (eg, now() vs. getdate())
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$sTranslatedDefault = $this->m_oTranslator->TranslateDefault($sDefault);
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$sFieldSQL .= " DEFAULT '$sTranslatedDefault'";
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}
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elseif($sDefault == '0')
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{
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$sFieldSQL .= " DEFAULT '0'";
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}
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if($DEBUG) { echo'<br>_GetFieldSQL(): Outgoing SQL: ' . $sFieldSQL; }
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return true;
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}
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if($DEBUG) { echo '<br>Failed to translate field: type[' . $sType . '] precision[' . $iPrecision . '] scale[' . $iScale . ']<br>'; }
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return False;
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}
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function _GetPK($aFields, &$sPKSQL)
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{
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$sPKSQL = '';
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if(count($aFields) < 1)
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{
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return True;
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}
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$sFields = '';
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reset($aFields);
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while(list($key, $sField) = each($aFields))
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{
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if($sFields != '')
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{
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$sFields .= ',';
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}
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$sFields .= $sField;
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}
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$sPKSQL = $this->m_oTranslator->GetPKSQL($sFields);
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return True;
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}
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function _GetUC($aFields, &$sUCSQL)
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{
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$sUCSQL = '';
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if(count($aFields) < 1)
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{
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return True;
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}
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$sFields = '';
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reset($aFields);
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while(list($key,$sField) = each($aFields))
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{
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if($sFields != '')
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{
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$sFields .= ',';
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}
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$sFields .= $sField;
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}
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$sUCSQL = $this->m_oTranslator->GetUCSQL($sFields);
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return True;
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}
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}
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?>
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