mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-20 06:53:34 +01:00
582 lines
14 KiB
PHP
582 lines
14 KiB
PHP
<?php
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/**************************************************************************\
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* eGroupWare - Setup *
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* http://www.egroupware.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@groupwhere.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->sType = $dbms;
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$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 = $aTables;
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$sAllTableSQL = '';
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foreach ($this->m_aTables as $sTableName => $aTableDef)
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{
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$sSequenceSQL = '';
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$append_ix = False;
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if($this->_GetTableSQL($sTableName, $aTableDef, $sTableSQL, $sSequenceSQL,$append_ix))
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{
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if($append_ix)
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{
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$sTableSQL = "CREATE TABLE $sTableName (\n$sTableSQL\n"
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. $this->m_oTranslator->m_sStatementTerminator;
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}
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else
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{
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$sTableSQL = "CREATE TABLE $sTableName (\n$sTableSQL\n)"
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. $this->m_oTranslator->m_sStatementTerminator;
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}
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if($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>' . $sTableName . '</b><br>');
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echo '<pre style="text-align: left;">'.$sTableName.' = '; print_r($aTableDef); echo "</pre>\n";
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}
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return false;
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}
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}
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if($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, $aTableDef);
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}
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function UpdateSequence($sTableName,$sColumnName)
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{
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if (method_exists($this->m_oTranslator,'UpdateSequence'))
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{
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return $this->m_oTranslator->UpdateSequence($this->m_odb,$sTableName,$sColumnName);
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}
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return True;
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}
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// This function manually re-created the table incl. primary key and all other indices
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// It is meant to use if the primary key, existing indices or column-order changes or
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// columns are not longer used or new columns need to be created (with there default value or NULL)
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// Beside the default-value in the schema, one can give extra defaults via $aDefaults to eg. use an
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// other colum or function to set the value of a new or changed column
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function RefreshTable($sTableName, $aTableDef, $aDefaults=False)
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{
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if($GLOBALS['DEBUG']) { echo "<p>schema_proc::RefreshTable('$sTableName',"._debug_array($aTableDef,False).")<p>m_aTables[$sTableName]="._debug_array($this->m_aTables[$sTableName],False)."\n"; }
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$old_fd = $this->m_aTables[$sTableName]['fd'];
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$Ok = $this->m_oDeltaProc->RefreshTable($this, $this->m_aTables, $sTableName, $aTableDef);
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if(!$Ok || $this->m_bDeltaOnly)
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{
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return $Ok; // nothing else to do
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}
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$tmp_name = 'tmp_'.$sTableName;
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$this->m_odb->transaction_begin();
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$select = array();
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foreach($aTableDef['fd'] as $name => $data)
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{
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if ($aDefaults && isset($aDefaults[$name])) // use given default
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{
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$value = $aDefaults[$name];
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}
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elseif (isset($old_fd[$name])) // existing column, use its value => column-name in query
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{
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$value = $name;
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}
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else // new column => use default value or NULL
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{
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if (!isset($data['default']) && (!isset($data['nullable']) || $data['nullable']))
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{
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$value = 'NULL';
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}
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else
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{
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$value = $this->m_odb->quote(isset($data['default']) ? $data['default'] : '',$data['type']);
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// fix for postgres error "no '<' operator for type 'unknown'"
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if ($this->sType == 'pgsql')
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{
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$type_translated = $this->m_oTranslator->TranslateType($data['type']);
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$value = "CAST($value AS $type_translated)";
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}
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}
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}
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$select[] = $value;
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}
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$select = implode(',',$select);
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$Ok = $this->RenameTable($sTableName,$tmp_name) &&
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$this->CreateTable($sTableName,$aTableDef) &&
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$this->m_odb->query("INSERT INTO $sTableName SELECT DISTINCT $select FROM $tmp_name",__LINE__,__FILE__);
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if (!$Ok)
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{
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$this->m_odb->transaction_abort();
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return False;
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}
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// do we need to update the new sequences value ?
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if (count($aTableDef['pk']) == 1 && $aTableDef['fd'][$aTableDef['pk'][0]]['type'] == 'auto')
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{
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$this->UpdateSequence($sTableName,$aTableDef['pk'][0]);
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}
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$this->DropTable($tmp_name);
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$this->m_odb->transaction_commit();
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return True;
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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, &$sSequenceSQL,&$append_ix)
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{
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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')", $sTableName);
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}
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}
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}
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else
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{
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if($GLOBALS['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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$sPKSQL = '';
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$sIXSQL = '';
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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(count($aTableDef['ix']) > 0)
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{
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$append_ix = False;
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if(!$this->_GetIX($aTableDef['ix'], $sIXSQL,$append_ix,$sTableName))
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{
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if($bOutputHTML)
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{
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print('<br>Failed getting index<br>');
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}
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return False;
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}
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// print('<br>HELLO!: ' . $sIXSQL);
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}
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if($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" . $sUCSQL;
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}
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if($sIXSQL != '')
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{
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if($append_ix)
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{
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$sTableSQL .= ");\n" . $sIXSQL;
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//pg: CREATE INDEX test1_id_index ON test1 (id);
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}
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else
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{
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$sTableSQL .= ",\n" . $sIXSQL;
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}
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}
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return True;
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}
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// Get field DDL
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function _GetFieldSQL($aField, &$sFieldSQL)
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{
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if($GLOBALS['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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$iScale = 0;
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$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)$vAttrVal;
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break;
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case 'nullable':
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$bNullable = $vAttrVal;
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break;
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default:
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break;
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}
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}
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// Translate the type for the DBMS
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if($sFieldSQL = $this->m_oTranslator->TranslateType($sType, $iPrecision, $iScale))
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{
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if(!$bNullable)
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{
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if(strpos(strtolower($sFieldSQL),' not null')===false)
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{
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$sFieldSQL .= ' NOT NULL';
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}
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}
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if(isset($aField['default']))
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{
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if($GLOBALS['DEBUG']) { echo'<br>_GetFieldSQL(): Calling TranslateDefault for "' . $aField['default'] . '"'; }
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// Get default DDL - useful for differences in date defaults (eg, now() vs. getdate())
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$sTranslatedDefault = $aField['default'] == '0' ? $aField['default'] : $this->m_oTranslator->TranslateDefault($aField['default']);
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$sFieldSQL .= " DEFAULT '$sTranslatedDefault'";
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}
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if($GLOBALS['DEBUG']) { echo'<br>_GetFieldSQL(): Outgoing SQL: ' . $sFieldSQL; }
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return true;
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}
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if($GLOBALS['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($aFields) < 1)
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{
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return True;
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}
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$sPKSQL = $this->m_oTranslator->GetPKSQL(implode(',',$aFields));
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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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return True;
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}
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|
foreach($aFields as $mFields)
|
|
{
|
|
$aUCSQL[] = $this->m_oTranslator->GetUCSQL(
|
|
is_array($mFields) ? implode(',',$mFields) : $mFields);
|
|
}
|
|
$sUCSQL = implode(",\n",$aUCSQL);
|
|
|
|
return True;
|
|
}
|
|
|
|
function _GetIX($aFields, &$sIXSQL, &$append, $sTableName)
|
|
{
|
|
$sUCSQL = '';
|
|
if(count($aFields) < 1)
|
|
{
|
|
return True;
|
|
}
|
|
foreach($aFields as $mFields)
|
|
{
|
|
$options = False;
|
|
if (is_array($mFields))
|
|
{
|
|
if (isset($mFields['options'])) // array sets additional options
|
|
{
|
|
$options = @$mFields['options'][$this->sType]; // db-specific options, eg. index-type
|
|
unset($mFields['options']);
|
|
}
|
|
$mFields = implode(',',$mFields);
|
|
}
|
|
$aIXSQL[] = $this->m_oTranslator->GetIXSQL($mFields,$append,$options,$sTableName);
|
|
}
|
|
if($append)
|
|
{
|
|
$sIXSQL = implode("\n",$aIXSQL);
|
|
}
|
|
else
|
|
{
|
|
$sIXSQL = implode(",\n",$aIXSQL);
|
|
}
|
|
|
|
return True;
|
|
}
|
|
}
|
|
?>
|