TimeTrex/classes/adodb/drivers/adodb-mysql.inc.php

<?php
/**
 * MySQL driver
 *
 * @deprecated
 *
 * This driver only supports the original non-transactional MySQL driver,
 * which was deprecated in PHP version 5.5 and removed in PHP version 7.
 * It is deprecated as of ADOdb version 5.20.0, use the mysqli driver
 * instead, which supports both transactional and non-transactional updates.
 *
 * This file is part of ADOdb, a Database Abstraction Layer library for PHP.
 *
 * @package ADOdb
 * @link https://adodb.org Project's web site and documentation
 * @link https://github.com/ADOdb/ADOdb Source code and issue tracker
 *
 * The ADOdb Library is dual-licensed, released under both the BSD 3-Clause
 * and the GNU Lesser General Public Licence (LGPL) v2.1 or, at your option,
 * any later version. This means you can use it in proprietary products.
 * See the LICENSE.md file distributed with this source code for details.
 * @license BSD-3-Clause
 * @license LGPL-2.1-or-later
 *
 * @copyright 2000-2013 John Lim
 * @copyright 2014 Damien Regad, Mark Newnham and the ADOdb community
 */

// security - hide paths
if (!defined('ADODB_DIR')) die();

if (! defined("_ADODB_MYSQL_LAYER")) {
	define("_ADODB_MYSQL_LAYER", 1 );

class ADODB_mysql extends ADOConnection {
	var $databaseType = 'mysql';
	var $dataProvider = 'mysql';
	var $hasInsertID = true;
	var $hasAffectedRows = true;
	var $metaTablesSQL = "SELECT
			TABLE_NAME,
			CASE WHEN TABLE_TYPE = 'VIEW' THEN 'V' ELSE 'T' END
		FROM INFORMATION_SCHEMA.TABLES
		WHERE TABLE_SCHEMA=";
	var $metaColumnsSQL = "SHOW COLUMNS FROM `%s`";
	var $fmtTimeStamp = "'Y-m-d H:i:s'";
	var $hasLimit = true;
	var $hasMoveFirst = true;
	var $hasGenID = true;
	var $isoDates = true; // accepts dates in ISO format
	var $sysDate = 'CURDATE()';
	var $sysTimeStamp = 'NOW()';
	var $hasTransactions = false;
	var $forceNewConnect = false;
	var $poorAffectedRows = true;
	var $clientFlags = 0;
	var $charSet = '';
	var $substr = "substring";
	var $nameQuote = '`';		/// string to use to quote identifiers and names
	var $compat323 = false; 		// true if compat with mysql 3.23

	/**
	 * ADODB_mysql constructor.
	 */
	public function __construct() {
		if(version_compare(PHP_VERSION, '7.0.0', '>=')) {
			$this->outp_throw(
				'mysql extension is not supported since PHP 7.0.0, use mysqli instead',
				__METHOD__
			);
			die(1); // Stop execution even if not using Exceptions
		} elseif(version_compare(PHP_VERSION, '5.5.0', '>=')) {
			// If mysql extension is available just print a warning,
			// otherwise die with an error message
			if(function_exists('mysql_connect')) {
				$this->outp('mysql extension is deprecated since PHP 5.5.0, consider using mysqli');
			} else {
				$this->outp_throw(
					'mysql extension is not available, use mysqli instead',
					__METHOD__
				);
				die(1); // Stop execution even if not using Exceptions
			}
		}
	}

	function setCharSet($charset)
	{
		if (!function_exists('mysql_set_charset')) {
			return false;
		}

		if ($this->charSet !== $charset) {
			$ok = @mysql_set_charset($charset,$this->_connectionID);
			if ($ok) {
				$this->charSet = $charset;
				return true;
			}
			return false;
		}
		return true;
	}

	function serverInfo()
	{
		$arr['description'] = ADOConnection::GetOne("select version()");
		$arr['version'] = ADOConnection::_findvers($arr['description']);
		return $arr;
	}

	function ifNull( $field, $ifNull )
	{
		return " IFNULL($field, $ifNull) "; // if MySQL
	}

	function metaProcedures($NamePattern = false, $catalog = null, $schemaPattern = null)
	{
		// save old fetch mode
		global $ADODB_FETCH_MODE;

		$false = false;
		$save = $ADODB_FETCH_MODE;
		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;

		if ($this->fetchMode !== FALSE) {
			$savem = $this->SetFetchMode(FALSE);
		}

		$procedures = array ();

		// get index details

		$likepattern = '';
		if ($NamePattern) {
			$likepattern = " LIKE '".$NamePattern."'";
		}
		$rs = $this->Execute('SHOW PROCEDURE STATUS'.$likepattern);
		if (is_object($rs)) {

			// parse index data into array
			while ($row = $rs->FetchRow()) {
				$procedures[$row[1]] = array(
					'type' => 'PROCEDURE',
					'catalog' => '',
					'schema' => '',
					'remarks' => $row[7],
				);
			}
		}

		$rs = $this->Execute('SHOW FUNCTION STATUS'.$likepattern);
		if (is_object($rs)) {
			// parse index data into array
			while ($row = $rs->FetchRow()) {
				$procedures[$row[1]] = array(
					'type' => 'FUNCTION',
					'catalog' => '',
					'schema' => '',
					'remarks' => $row[7]
				);
			}
		}

		// restore fetchmode
		if (isset($savem)) {
			$this->SetFetchMode($savem);
		}
		$ADODB_FETCH_MODE = $save;

		return $procedures;
	}

	/**
	 * Retrieves a list of tables based on given criteria
	 *
	 * @param string $ttype Table type = 'TABLE', 'VIEW' or false=both (default)
	 * @param string $showSchema schema name, false = current schema (default)
	 * @param string $mask filters the table by name
	 *
	 * @return array list of tables
	 */
	function metaTables($ttype=false,$showSchema=false,$mask=false)
	{
		$save = $this->metaTablesSQL;
		if ($showSchema && is_string($showSchema)) {
			$this->metaTablesSQL .= $this->qstr($showSchema);
		} else {
			$this->metaTablesSQL .= "schema()";
		}

		if ($mask) {
			$mask = $this->qstr($mask);
			$this->metaTablesSQL .= " AND table_name LIKE $mask";
		}
		$ret = ADOConnection::MetaTables($ttype,$showSchema);

		$this->metaTablesSQL = $save;
		return $ret;
	}


	function metaIndexes ($table, $primary = FALSE, $owner=false)
	{
		// save old fetch mode
		global $ADODB_FETCH_MODE;

		$false = false;
		$save = $ADODB_FETCH_MODE;
		$ADODB_FETCH_MODE = ADODB_FETCH_NUM;
		if ($this->fetchMode !== FALSE) {
			$savem = $this->SetFetchMode(FALSE);
		}

		// get index details
		$rs = $this->Execute(sprintf('SHOW INDEX FROM %s',$table));

		// restore fetchmode
		if (isset($savem)) {
			$this->SetFetchMode($savem);
		}
		$ADODB_FETCH_MODE = $save;

		if (!is_object($rs)) {
			return $false;
		}

		$indexes = array ();

		// parse index data into array
		while ($row = $rs->FetchRow()) {
			if ($primary == FALSE AND $row[2] == 'PRIMARY') {
				continue;
			}

			if (!isset($indexes[$row[2]])) {
				$indexes[$row[2]] = array(
					'unique' => ($row[1] == 0),
					'columns' => array()
				);
			}

			$indexes[$row[2]]['columns'][$row[3] - 1] = $row[4];
		}

		// sort columns by order in the index
		foreach ( array_keys ($indexes) as $index )
		{
			ksort ($indexes[$index]['columns']);
		}

		return $indexes;
	}


	/**
	 * Appropriately quotes strings with ' characters for insertion into the database.
	 *
	 * Relies on mysql_real_escape_string()
	 * @link https://adodb.org/dokuwiki/doku.php?id=v5:reference:connection:qstr
	 *
	 * @param string $s            The string to quote
	 * @param bool   $magic_quotes This param is not used since 5.21.0.
	 *                             It remains for backwards compatibility.
	 *
	 * @return string Quoted string
	 */
	function qStr($s, $magic_quotes=false)
	{
		if (is_null($s)) {
			return 'NULL';
		}

		if (is_resource($this->_connectionID)) {
			return "'" . mysql_real_escape_string($s, $this->_connectionID) . "'";
		}

		if ($this->replaceQuote[0] == '\\') {
			$s = str_replace(array('\\', "\0"), array('\\\\', "\\\0"), $s);
		}
		return "'" . str_replace("'", $this->replaceQuote, $s) . "'";
	}

	protected function _insertID($table = '', $column = '')
	{
		return ADOConnection::GetOne('SELECT LAST_INSERT_ID()');
		//return mysql_insert_id($this->_connectionID);
	}

	function getOne($sql,$inputarr=false)
	{
	global $ADODB_GETONE_EOF;
		if ($this->compat323 == false && strncasecmp($sql,'sele',4) == 0) {
			$rs = $this->SelectLimit($sql,1,-1,$inputarr);
			if ($rs) {
				$rs->Close();
				if ($rs->EOF) return $ADODB_GETONE_EOF;
				return reset($rs->fields);
			}
		} else {
			return ADOConnection::GetOne($sql,$inputarr);
		}
		return false;
	}

	function beginTrans()
	{
		if ($this->debug) ADOConnection::outp("Transactions not supported in 'mysql' driver. Use 'mysqlt' or 'mysqli' driver");
	}

	function _affectedrows()
	{
			return mysql_affected_rows($this->_connectionID);
	}

	 // See http://www.mysql.com/doc/M/i/Miscellaneous_functions.html
	// Reference on Last_Insert_ID on the recommended way to simulate sequences
	var $_genIDSQL = "update %s set id=LAST_INSERT_ID(id+1);";
	var $_genSeqSQL = "create table if not exists %s (id int not null)";
	var $_genSeqCountSQL = "select count(*) from %s";
	var $_genSeq2SQL = "insert into %s values (%s)";
	var $_dropSeqSQL = "drop table if exists %s";

	function createSequence($seqname='adodbseq',$startID=1)
	{
		if (empty($this->_genSeqSQL)) return false;
		$u = strtoupper($seqname);

		$ok = $this->Execute(sprintf($this->_genSeqSQL,$seqname));
		if (!$ok) return false;
		return $this->Execute(sprintf($this->_genSeq2SQL,$seqname,$startID-1));
	}


	function genID($seqname='adodbseq',$startID=1)
	{
		// post-nuke sets hasGenID to false
		if (!$this->hasGenID) return false;

		$savelog = $this->_logsql;
		$this->_logsql = false;
		$getnext = sprintf($this->_genIDSQL,$seqname);
		$holdtransOK = $this->_transOK; // save the current status
		$rs = @$this->Execute($getnext);
		if (!$rs) {
			if ($holdtransOK) $this->_transOK = true; //if the status was ok before reset
			$u = strtoupper($seqname);
			$this->Execute(sprintf($this->_genSeqSQL,$seqname));
			$cnt = $this->GetOne(sprintf($this->_genSeqCountSQL,$seqname));
			if (!$cnt) $this->Execute(sprintf($this->_genSeq2SQL,$seqname,$startID-1));
			$rs = $this->Execute($getnext);
		}

		if ($rs) {
			$this->genID = mysql_insert_id($this->_connectionID);
			$rs->Close();
		} else
			$this->genID = 0;

		$this->_logsql = $savelog;
		return $this->genID;
	}

	function metaDatabases()
	{
		$qid = mysql_list_dbs($this->_connectionID);
		$arr = array();
		$i = 0;
		$max = mysql_num_rows($qid);
		while ($i < $max) {
			$db = mysql_tablename($qid,$i);
			if ($db != 'mysql') $arr[] = $db;
			$i += 1;
		}
		return $arr;
	}


	// Format date column in sql string given an input format that understands Y M D
	function sqlDate($fmt, $col=false)
	{
		if (!$col) $col = $this->sysTimeStamp;
		$s = 'DATE_FORMAT('.$col.",'";
		$concat = false;
		$len = strlen($fmt);
		for ($i=0; $i < $len; $i++) {
			$ch = $fmt[$i];
			switch($ch) {

			default:
				if ($ch == '\\') {
					$i++;
					$ch = substr($fmt,$i,1);
				}
				/** FALL THROUGH */
			case '-':
			case '/':
				$s .= $ch;
				break;

			case 'Y':
			case 'y':
				$s .= '%Y';
				break;
			case 'M':
				$s .= '%b';
				break;

			case 'm':
				$s .= '%m';
				break;
			case 'D':
			case 'd':
				$s .= '%d';
				break;

			case 'Q':
			case 'q':
				$s .= "'),Quarter($col)";

				if ($len > $i+1) $s .= ",DATE_FORMAT($col,'";
				else $s .= ",('";
				$concat = true;
				break;

			case 'H':
				$s .= '%H';
				break;

			case 'h':
				$s .= '%I';
				break;

			case 'i':
				$s .= '%i';
				break;

			case 's':
				$s .= '%s';
				break;

			case 'a':
			case 'A':
				$s .= '%p';
				break;

			case 'w':
				$s .= '%w';
				break;

			 case 'W':
				$s .= '%U';
				break;

			case 'l':
				$s .= '%W';
				break;
			}
		}
		$s.="')";
		if ($concat) $s = "CONCAT($s)";
		return $s;
	}


	// returns concatenated string
	// much easier to run "mysqld --ansi" or "mysqld --sql-mode=PIPES_AS_CONCAT" and use || operator
	function concat()
	{
		$s = "";
		$arr = func_get_args();

		// suggestion by andrew005@mnogo.ru
		$s = implode(',',$arr);
		if (strlen($s) > 0) return "CONCAT($s)";
		else return '';
	}

	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)";
	}

	// returns true or false
	function _connect($argHostname, $argUsername, $argPassword, $argDatabasename)
	{
		if (!empty($this->port))
			$argHostname .= ":".$this->port;

		$this->_connectionID =
			mysql_connect($argHostname,
						  $argUsername,
						  $argPassword,
						  $this->forceNewConnect,
						  $this->clientFlags
						  );


		if ($this->_connectionID === false)
			return false;
		if ($argDatabasename)
			return $this->SelectDB($argDatabasename);

		return true;
	}

	// returns true or false
	function _pconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
	{
		if (!empty($this->port)) $argHostname .= ":".$this->port;

		$this->_connectionID =
			mysql_pconnect($argHostname,
						   $argUsername,
						   $argPassword,
						   $this->clientFlags);

		if ($this->_connectionID === false)
			return false;
		if ($this->autoRollback)
			$this->RollbackTrans();
		if ($argDatabasename)
			return $this->SelectDB($argDatabasename);
		return true;
	}

	function _nconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
	{
		$this->forceNewConnect = true;
		return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename);
	}

	function metaColumns($table, $normalize=true)
	{
		$this->_findschema($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 || strpos($type,'binary') !== false);
			$fld->unsigned = (strpos($type,'unsigned') !== false);
			$fld->zerofill = (strpos($type,'zerofill') !== 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;
	}

	// returns true or false
	function selectDB($dbName)
	{
		$this->database = $dbName;
		$this->databaseName = $dbName; # obsolete, retained for compat with older adodb versions
		if ($this->_connectionID) {
			return @mysql_select_db($dbName,$this->_connectionID);
		}
		else return false;
	}

	// parameters use PostgreSQL convention, not MySQL
	function selectLimit($sql,$nrows=-1,$offset=-1,$inputarr=false,$secs=0)
	{
		$nrows = (int) $nrows;
		$offset = (int) $offset;
		$offsetStr =($offset>=0) ? ((integer)$offset)."," : '';
		// jason judge, see PHPLens Issue No: 9220
		if ($nrows < 0) $nrows = '18446744073709551615';

		if ($secs)
			$rs = $this->CacheExecute($secs,$sql." LIMIT $offsetStr".((integer)$nrows),$inputarr);
		else
			$rs = $this->Execute($sql." LIMIT $offsetStr".((integer)$nrows),$inputarr);
		return $rs;
	}

	// returns queryID or false
	function _query($sql,$inputarr=false)
	{

	return mysql_query($sql,$this->_connectionID);
	/*
	global $ADODB_COUNTRECS;
		if($ADODB_COUNTRECS)
			return mysql_query($sql,$this->_connectionID);
		else
			return @mysql_unbuffered_query($sql,$this->_connectionID); // requires PHP >= 4.0.6
	*/
	}

	/*	Returns: the last error message from previous database operation	*/
	function errorMsg()
	{

		if ($this->_logsql) return $this->_errorMsg;
		if (empty($this->_connectionID)) $this->_errorMsg = @mysql_error();
		else $this->_errorMsg = @mysql_error($this->_connectionID);
		return $this->_errorMsg;
	}

	/*	Returns: the last error number from previous database operation	*/
	function errorNo()
	{
		if ($this->_logsql) return $this->_errorCode;
		if (empty($this->_connectionID)) return @mysql_errno();
		else return @mysql_errno($this->_connectionID);
	}

	// returns true or false
	function _close()
	{
		@mysql_close($this->_connectionID);

		$this->charSet = '';
		$this->_connectionID = false;
	}


	/*
	* Maximum size of C field
	*/
	function charMax()
	{
		return 255;
	}

	/*
	* Maximum size of X field
	*/
	function textMax()
	{
		return 4294967295;
	}

	public function metaForeignKeys($table, $owner = '', $upper =  false, $associativee =  false)
	{
	 global $ADODB_FETCH_MODE;
		if ($ADODB_FETCH_MODE == ADODB_FETCH_ASSOC || $this->fetchMode == ADODB_FETCH_ASSOC) $associative = true;

		if ( !empty($owner) ) {
			$table = "$owner.$table";
		}
		$a_create_table = $this->getRow(sprintf('SHOW CREATE TABLE %s', $table));
		if ($associative) {
			$create_sql = isset($a_create_table["Create Table"]) ? $a_create_table["Create Table"] : $a_create_table["Create View"];
		} else {
			$create_sql = $a_create_table[1];
		}

		$matches = array();

		if (!preg_match_all("/FOREIGN KEY \(`(.*?)`\) REFERENCES `(.*?)` \(`(.*?)`\)/", $create_sql, $matches)) return false;
		$foreign_keys = array();
		$num_keys = count($matches[0]);
		for ( $i = 0; $i < $num_keys; $i ++ ) {
			$my_field  = explode('`, `', $matches[1][$i]);
			$ref_table = $matches[2][$i];
			$ref_field = explode('`, `', $matches[3][$i]);

			if ( $upper ) {
				$ref_table = strtoupper($ref_table);
			}

			// see https://sourceforge.net/p/adodb/bugs/100/
			if (!isset($foreign_keys[$ref_table])) {
				$foreign_keys[$ref_table] = array();
			}
			$num_fields = count($my_field);
			for ( $j = 0; $j < $num_fields; $j ++ ) {
				if ( $associative ) {
					$foreign_keys[$ref_table][$ref_field[$j]] = $my_field[$j];
				} else {
					$foreign_keys[$ref_table][] = "{$my_field[$j]}={$ref_field[$j]}";
				}
			}
		}

		return $foreign_keys;
	}


}

/*--------------------------------------------------------------------------------------
	 Class Name: Recordset
--------------------------------------------------------------------------------------*/


class ADORecordSet_mysql extends ADORecordSet{

	var $databaseType = "mysql";
	var $canSeek = true;

	function __construct($queryID,$mode=false)
	{
		if ($mode === false) {
			global $ADODB_FETCH_MODE;
			$mode = $ADODB_FETCH_MODE;
		}
		switch ($mode)
		{
		case ADODB_FETCH_NUM: $this->fetchMode = MYSQL_NUM; break;
		case ADODB_FETCH_ASSOC:$this->fetchMode = MYSQL_ASSOC; break;
		case ADODB_FETCH_DEFAULT:
		case ADODB_FETCH_BOTH:
		default:
			$this->fetchMode = MYSQL_BOTH; break;
		}
		$this->adodbFetchMode = $mode;
		parent::__construct($queryID);
	}

	function _initrs()
	{
	//GLOBAL $ADODB_COUNTRECS;
	//	$this->_numOfRows = ($ADODB_COUNTRECS) ? @mysql_num_rows($this->_queryID):-1;
		$this->_numOfRows = @mysql_num_rows($this->_queryID);
		$this->_numOfFields = @mysql_num_fields($this->_queryID);
	}

	function fetchField($fieldOffset = -1)
	{
		if ($fieldOffset != -1) {
			$o = @mysql_fetch_field($this->_queryID, $fieldOffset);
			$f = @mysql_field_flags($this->_queryID,$fieldOffset);
			if ($o) $o->max_length = @mysql_field_len($this->_queryID,$fieldOffset); // suggested by: Jim Nicholson (jnich#att.com)
			//$o->max_length = -1; // mysql returns the max length less spaces -- so it is unrealiable
			if ($o) $o->binary = (strpos($f,'binary')!== false);
		}
		else {	/*	The $fieldOffset argument is not provided thus its -1 	*/
			$o = @mysql_fetch_field($this->_queryID);
			//if ($o) $o->max_length = @mysql_field_len($this->_queryID); // suggested by: Jim Nicholson (jnich#att.com)
			$o->max_length = -1; // mysql returns the max length less spaces -- so it is unrealiable
		}

		return $o;
	}

	function getRowAssoc($upper = ADODB_ASSOC_CASE)
	{
		if ($this->fetchMode == MYSQL_ASSOC && $upper == ADODB_ASSOC_CASE_LOWER) {
			$row = $this->fields;
		}
		else {
			$row = ADORecordSet::GetRowAssoc($upper);
		}
		return $row;
	}

	/* Use associative array to get fields array */
	function fields($colname)
	{
		// added @ by "Michael William Miller" <mille562@pilot.msu.edu>
		if ($this->fetchMode != MYSQL_NUM) return @$this->fields[$colname];

		if (!$this->bind) {
			$this->bind = array();
			for ($i=0; $i < $this->_numOfFields; $i++) {
				$o = $this->FetchField($i);
				$this->bind[strtoupper($o->name)] = $i;
			}
		}
		 return $this->fields[$this->bind[strtoupper($colname)]];
	}

	function _seek($row)
	{
		if ($this->_numOfRows == 0) return false;
		return @mysql_data_seek($this->_queryID,$row);
	}

	function moveNext()
	{
		if (@$this->fields = mysql_fetch_array($this->_queryID,$this->fetchMode)) {
			$this->_updatefields();
			$this->_currentRow += 1;
			return true;
		}
		if (!$this->EOF) {
			$this->_currentRow += 1;
			$this->EOF = true;
		}
		return false;
	}

	function _fetch()
	{
		$this->fields = @mysql_fetch_array($this->_queryID,$this->fetchMode);
		$this->_updatefields();
		return is_array($this->fields);
	}

	function _close() {
		@mysql_free_result($this->_queryID);
		$this->_queryID = false;
	}

	function metaType($t,$len=-1,$fieldobj=false)
	{
		if (is_object($t)) {
			$fieldobj = $t;
			$t = $fieldobj->type;
			$len = $fieldobj->max_length;
		}

		$t = strtoupper($t);

		if (array_key_exists($t,$this->connection->customActualTypes))
			return  $this->connection->customActualTypes[$t];

		$len = -1; // mysql max_length is not accurate

		switch ($t) {
		case 'STRING':
		case 'CHAR':
		case 'VARCHAR':
		case 'TINYBLOB':
		case 'TINYTEXT':
		case 'ENUM':
		case 'SET':
			if ($len <= $this->blobSize) return 'C';

		case 'TEXT':
		case 'LONGTEXT':
		case 'MEDIUMTEXT':
			return 'X';

		// php_mysql extension always returns 'blob' even if 'text'
		// so we have to check whether binary...
		case 'IMAGE':
		case 'LONGBLOB':
		case 'BLOB':
		case 'MEDIUMBLOB':
		case 'BINARY':
			return !empty($fieldobj->binary) ? 'B' : 'X';

		case 'YEAR':
		case 'DATE': return 'D';

		case 'TIME':
		case 'DATETIME':
		case 'TIMESTAMP': return 'T';

		case 'INT':
		case 'INTEGER':
		case 'BIGINT':
		case 'TINYINT':
		case 'MEDIUMINT':
		case 'SMALLINT':

			if (!empty($fieldobj->primary_key)) return 'R';
			else return 'I';

		default: return ADODB_DEFAULT_METATYPE;
		}
	}

}

/**
 * Class ADORecordSet_ext_mysql
 */
class ADORecordSet_ext_mysql extends ADORecordSet_mysql {

	function moveNext()
	{
		return @adodb_movenext($this);
	}
}

}