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Current File : /var/www/html/suk_discontinued/libs/adodb5/drivers/adodb-pdo_mysql.inc.php

<?php


/*
V5.04a 25 Mar 2008   (c) 2000-2008 John Lim (jlim#natsoft.com.my). All rights reserved.
  Released under both BSD license and Lesser GPL library license. 
  Whenever there is any discrepancy between the two licenses, 
  the BSD license will take precedence.
  Set tabs to 8.
 
*/ 

class ADODB_pdo_mysql extends ADODB_pdo {
	var $metaTablesSQL = "SHOW TABLES";	
	var $metaColumnsSQL = "SHOW COLUMNS FROM `%s`";
	var $sysDate = 'CURDATE()';
	var $sysTimeStamp = 'NOW()';
	var $hasGenID = true;
	var $_genIDSQL = "update %s set id=LAST_INSERT_ID(id+1);";
	var $_dropSeqSQL = "drop table %s";

	var $nameQuote = '`';

	function _init($parentDriver)
	{
	
		$parentDriver->hasTransactions = false;
		$parentDriver->_bindInputArray = false;
		$parentDriver->hasInsertID = true;
		$parentDriver->_connectionID->setAttribute(PDO::MYSQL_ATTR_USE_BUFFERED_QUERY,true);
	}
	
		// dayFraction is a day in floating point
	function OffsetDate($dayFraction,$date=false)
	{		
		if (!$date) $date = $this->sysDate;
		
		$fraction = $dayFraction * 24 * 3600;
		return $date . ' + INTERVAL ' .	 $fraction.' SECOND';
		
//		return "from_unixtime(unix_timestamp($date)+$fraction)";
	}
	
	function ServerInfo()
	{
		$arr['description'] = ADOConnection::GetOne("select version()");
		$arr['version'] = ADOConnection::_findvers($arr['description']);
		return $arr;
	}
	
	function MetaTables($ttype=false,$showSchema=false,$mask=false) 
	{	
		$save = $this->metaTablesSQL;
		if ($showSchema && is_string($showSchema)) {
			$this->metaTablesSQL .= " from $showSchema";
		}
		
		if ($mask) {
			$mask = $this->qstr($mask);
			$this->metaTablesSQL .= " like $mask";
		}
		$ret = ADOConnection::MetaTables($ttype,$showSchema);
		
		$this->metaTablesSQL = $save;
		return $ret;
	}
	
	function SetTransactionMode( $transaction_mode ) 
	{
		$this->_transmode  = $transaction_mode;
		if (empty($transaction_mode)) {
			$this->Execute('SET TRANSACTION ISOLATION LEVEL REPEATABLE READ');
			return;
		}
		if (!stristr($transaction_mode,'isolation')) $transaction_mode = 'ISOLATION LEVEL '.$transaction_mode;
		$this->Execute("SET SESSION TRANSACTION ".$transaction_mode);
	}
	
 	function MetaColumns($table) 
	{
		$this->_findschema($table,$schema);
		if ($schema) {
			$dbName = $this->database;
			$this->SelectDB($schema);
		}
		global $ADODB_FETCH_MODE;
		$save = $ADODB_FETCH_MODE;
		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
		
		if ($this->fetchMode !== false) $savem = $this->SetFetchMode(false);
		$rs = $this->Execute(sprintf($this->metaColumnsSQL,$table));
		
		if ($schema) {
			$this->SelectDB($dbName);
		}
		
		if (isset($savem)) $this->SetFetchMode($savem);
		$ADODB_FETCH_MODE = $save;
		if (!is_object($rs)) {
			$false = false;
			return $false;
		}
			
		$retarr = array();
		while (!$rs->EOF){
			$fld = new ADOFieldObject();
			$fld->name = $rs->fields[0];
			$type = $rs->fields[1];
			
			// split type into type(length):
			$fld->scale = null;
			if (preg_match("/^(.+)\((\d+),(\d+)/", $type, $query_array)) {
				$fld->type = $query_array[1];
				$fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1;
				$fld->scale = is_numeric($query_array[3]) ? $query_array[3] : -1;
			} elseif (preg_match("/^(.+)\((\d+)/", $type, $query_array)) {
				$fld->type = $query_array[1];
				$fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1;
			} elseif (preg_match("/^(enum)\((.*)\)$/i", $type, $query_array)) {
				$fld->type = $query_array[1];
				$arr = explode(",",$query_array[2]);
				$fld->enums = $arr;
				$zlen = max(array_map("strlen",$arr)) - 2; // PHP >= 4.0.6
				$fld->max_length = ($zlen > 0) ? $zlen : 1;
			} else {
				$fld->type = $type;
				$fld->max_length = -1;
			}
			$fld->not_null = ($rs->fields[2] != 'YES');
			$fld->primary_key = ($rs->fields[3] == 'PRI');
			$fld->auto_increment = (strpos($rs->fields[5], 'auto_increment') !== false);
			$fld->binary = (strpos($type,'blob') !== false);
			$fld->unsigned = (strpos($type,'unsigned') !== false);
				
			if (!$fld->binary) {
				$d = $rs->fields[4];
				if ($d != '' && $d != 'NULL') {
					$fld->has_default = true;
					$fld->default_value = $d;
				} else {
					$fld->has_default = false;
				}
			}
			
			if ($save == ADODB_FETCH_NUM) {
				$retarr[] = $fld;
			} else {
				$retarr[strtoupper($fld->name)] = $fld;
			}
				$rs->MoveNext();
			}
		
			$rs->Close();
			return $retarr;	
	}
		
	
	// parameters use PostgreSQL convention, not MySQL
	function SelectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs=0)
	{
		$offsetStr =($offset>=0) ? "$offset," : '';
		// jason judge, see http://phplens.com/lens/lensforum/msgs.php?id=9220
		if ($nrows < 0) $nrows = '18446744073709551615'; 
		
		if ($secs)
			$rs = $this->CacheExecute($secs,$sql." LIMIT $offsetStr$nrows",$inputarr);
		else
			$rs = $this->Execute($sql." LIMIT $offsetStr$nrows",$inputarr);
		return $rs;
	}
}
?>