mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-12-04 22:01:05 +01:00
342 lines
8.8 KiB
PHP
342 lines
8.8 KiB
PHP
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<?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_mssql
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{
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var $m_sStatementTerminator;
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/* Following added to convert sql to array */
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var $sCol = array();
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var $pk = array();
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var $fk = array();
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var $ix = array();
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var $uc = array();
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function schema_proc_mssql()
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{
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$this->m_sStatementTerminator = ';';
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}
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/* Return a type suitable for DDL */
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function TranslateType($sType, $iPrecision = 0, $iScale = 0)
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{
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$sTranslated = '';
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switch($sType)
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{
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case 'auto':
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$sTranslated = 'int identity(1,1)';
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break;
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case 'blob':
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$sTranslated = 'image'; /* wonder how well PHP will support this??? */
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break;
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case 'char':
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if ($iPrecision > 0 && $iPrecision < 256)
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{
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$sTranslated = sprintf("char(%d)", $iPrecision);
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}
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if ($iPrecision > 255)
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{
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$sTranslated = 'text';
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}
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break;
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case 'date':
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$sTranslated = 'smalldatetime';
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break;
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case 'decimal':
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$sTranslated = sprintf("decimal(%d,%d)", $iPrecision, $iScale);
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break;
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case 'float':
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switch ($iPrecision)
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{
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case 4:
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$sTranslated = 'float';
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break;
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case 8:
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$sTranslated = 'real';
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break;
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}
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break;
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case 'int':
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switch ($iPrecision)
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{
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case 2:
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$sTranslated = 'smallint';
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break;
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case 4:
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case 8:
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$sTranslated = 'int';
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break;
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}
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break;
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case 'longtext':
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case 'text':
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$sTranslated = 'text';
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break;
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case 'timestamp':
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$sTranslated = 'datetime';
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break;
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case 'varchar':
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if ($iPrecision > 0 && $iPrecision < 256)
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{
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$sTranslated = sprintf("varchar(%d)", $iPrecision);
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}
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if ($iPrecision > 255)
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{
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$sTranslated = 'text';
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}
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break;
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}
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return $sTranslated;
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}
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function TranslateDefault($sDefault)
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{
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switch ($sDefault)
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{
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case 'current_date':
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case 'current_timestamp':
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return 'GetDate()';
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}
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return $sDefault;
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}
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// Inverse of above, convert sql column types to array info
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function rTranslateType($sType, $iPrecision = 0, $iScale = 0)
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{
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$sTranslated = '';
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if ($sType == 'int' || $sType == 'tinyint' || $sType == 'smallint')
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{
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if ($iPrecision > 8)
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{
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$iPrecision = 8;
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}
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elseif($iPrecision > 4)
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{
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$iPrecision = 4;
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}
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else
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{
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$iPrecision = 2;
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}
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}
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switch($sType)
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{
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case 'tinyint':
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case 'smallint':
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$sTranslated = "'type' => 'int', 'precision' => 2";
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break;
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case 'int':
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$sTranslated = "'type' => 'int', 'precision' => 4";
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break;
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case 'char':
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if ($iPrecision > 0 && $iPrecision < 256)
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{
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$sTranslated = "'type' => 'char', 'precision' => $iPrecision";
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}
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if ($iPrecision > 255)
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{
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$sTranslated = "'type' => 'text'";
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}
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break;
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case 'decimal':
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$sTranslated = "'type' => 'decimal', 'precision' => $iPrecision, 'scale' => $iScale";
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break;
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case 'float':
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case 'double':
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$sTranslated = "'type' => 'float', 'precision' => $iPrecision";
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break;
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case 'smalldatetime':
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$sTranslated = "'type' => 'date'";
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break;
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case 'datetime':
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$sTranslated = "'type' => 'timestamp'";
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break;
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case 'varchar':
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if ($iPrecision > 0 && $iPrecision < 256)
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{
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$sTranslated = "'type' => 'varchar', 'precision' => $iPrecision";
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}
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if ($iPrecision > 255)
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{
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$sTranslated = "'type' => 'text'";
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}
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break;
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case 'image':
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$sTranslated = "'type' => 'blob'";
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break;
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case 'text':
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$sTranslated = "'type' => '$sType'";
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break;
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}
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return $sTranslated;
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}
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function GetPKSQL($sFields)
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{
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return "PRIMARY KEY($sFields)";
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}
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function GetUCSQL($sFields)
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{
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return "UNIQUE($sFields)";
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}
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function _GetColumns($oProc, $sTableName, &$sColumns, $sDropColumn = '')
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{
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$sColumns = '';
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$this->pk = array();
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$this->fk = array();
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$this->ix = array();
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$this->uc = array();
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// Field, Type, Null, Key, Default, Extra
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$oProc->m_odb->query("exec sp_columns '$sTableName'");
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while ($oProc->m_odb->next_record())
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{
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$type = $default = $null = $nullcomma = $prec = $scale = $ret = $colinfo = $scales = '';
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if ($sColumns != '')
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{
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$sColumns .= ',';
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}
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$sColumns .= $oProc->m_odb->f(0);
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// The rest of this is used only for SQL->array
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$colinfo = explode('(',$oProc->m_odb->f(1));
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$prec = ereg_replace(')','',$colinfo[1]);
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$scales = explode(',',$prec);
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if ($scales[1])
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{
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$prec = $scales[0];
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$scale = $scales[1];
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}
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$type = $this->rTranslateType($colinfo[0], $prec, $scale);
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if ($oProc->m_odb->f(2) == 'YES')
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{
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$null = "'nullable' => True";
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}
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else
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{
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$null = "'nullable' => False";
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}
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if ($oProc->m_odb->f(4))
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{
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$default = "'default' => '".$oProc->m_odb->f(4)."'";
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$nullcomma = ',';
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}
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else
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{
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$default = '';
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$nullcomma = '';
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}
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if ($oProc->m_odb->f(5))
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{
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$type = "'type' => 'auto'";
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}
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$this->sCol[] = "\t\t\t\t'" . $oProc->m_odb->f(0)."' => array(" . $type . ',' . $null . $nullcomma . $default . '),' . "\n";
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if ($oProc->m_odb->f(3) == 'PRI')
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{
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$this->pk[] = $oProc->m_odb->f(0);
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}
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if ($oProc->m_odb->f(3) == 'UNI')
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{
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$this->uc[] = $oProc->m_odb->f(0);
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}
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/* Hmmm, MUL could also mean unique, or not... */
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if ($oProc->m_odb->f(3) == 'MUL')
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{
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$this->ix[] = $oProc->m_odb->f(0);
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}
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}
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/* ugly as heck, but is here to chop the trailing comma on the last element (for php3) */
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$this->sCol[count($this->sCol) - 1] = substr($this->sCol[count($this->sCol) - 1],0,-2) . "\n";
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return false;
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}
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function DropTable($oProc, &$aTables, $sTableName)
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{
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return !!($oProc->m_odb->query("DROP TABLE " . $sTableName));
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}
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function DropColumn($oProc, &$aTables, $sTableName, $aNewTableDef, $sColumnName, $bCopyData = true)
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{
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return !!($oProc->m_odb->query("ALTER TABLE $sTableName DROP COLUMN $sColumnName"));
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}
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function RenameTable($oProc, &$aTables, $sOldTableName, $sNewTableName)
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{
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return !!($oProc->m_odb->query("EXEC sp_rename '$sOldTableName', '$sNewTableName'"));
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}
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function RenameColumn($oProc, &$aTables, $sTableName, $sOldColumnName, $sNewColumnName, $bCopyData = true)
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{
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// This really needs testing - it can affect primary keys, and other table-related objects
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// like sequences and such
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global $DEBUG;
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if ($DEBUG) { echo '<br>RenameColumn: calling _GetFieldSQL for ' . $sNewColumnName; }
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if ($oProc->_GetFieldSQL($aTables[$sTableName]["fd"][$sNewColumnName], $sNewColumnSQL))
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{
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return !!($oProc->m_odb->query("EXEC sp_rename '$sTableName.$sOldColumnName', '$sNewColumnName'"));
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}
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return false;
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}
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function AlterColumn($oProc, &$aTables, $sTableName, $sColumnName, &$aColumnDef, $bCopyData = true)
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{
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global $DEBUG;
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if ($DEBUG) { echo '<br>AlterColumn: calling _GetFieldSQL for ' . $sNewColumnName; }
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if ($oProc->_GetFieldSQL($aTables[$sTableName]["fd"][$sColumnName], $sNewColumnSQL))
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{
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return !!($oProc->m_odb->query("ALTER TABLE $sTableName ALTER COLUMN $sColumnName " . $sNewColumnSQL));
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}
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return false;
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}
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function AddColumn($oProc, &$aTables, $sTableName, $sColumnName, &$aColumnDef)
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{
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$oProc->_GetFieldSQL($aColumnDef, $sFieldSQL);
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$query = "ALTER TABLE $sTableName ADD $sColumnName $sFieldSQL";
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return !!($oProc->m_odb->query($query));
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}
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function GetSequenceSQL($sTableName, &$sSequenceSQL)
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{
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$sSequenceSQL = '';
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return true;
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}
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function CreateTable($oProc, &$aTables, $sTableName, $aTableDef)
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{
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if ($oProc->_GetTableSQL($sTableName, $aTableDef, $sTableSQL, $sSequenceSQL))
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{
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// create sequence first since it will be needed for default
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if ($sSequenceSQL != '')
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{
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$oProc->m_odb->query($sSequenceSQL);
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}
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$query = "CREATE TABLE $sTableName ($sTableSQL)";
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return !!($oProc->m_odb->query($query));
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}
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return false;
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}
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}
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?>
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