adodb-mysql.inc.php

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		return true;	
	}
	
	function _nconnect($argHostname, $argUsername, $argPassword, $argDatabasename)
	{
		$this->forceNewConnect = true;
		return $this->_connect($argHostname, $argUsername, $argPassword, $argDatabasename);
	}
	
 	function &MetaColumns($table) 
	{
	
		if ($this->metaColumnsSQL) {
		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 (isset($savem)) $this->SetFetchMode($savem);
			$ADODB_FETCH_MODE = $save;
			
			if ($rs === 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):
				$fld->scale = null;
				if (strpos($type,',') && 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;
				} else {
					$fld->max_length = -1;
					$fld->type = $type;
				}
				/*
				// split type into type(length):
				if (preg_match("/^(.+)\((\d+)/", $type, $query_array)) {
					$fld->type = $query_array[1];
					$fld->max_length = is_numeric($query_array[2]) ? $query_array[2] : -1;
				} else {
					$fld->max_length = -1;
					$fld->type = $type;
				}*/
				$fld->not_null = ($rs->fields[2] != 'YES');
				$fld->primary_key = ($rs->fields[3] == 'PRI');
				$fld->auto_increment = (strpos($rs->fields[5], 'auto_increment') !== false);
				$fld->binary = (strpos($fld->type,'blob') !== 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;	
		}
		return false;
	}
		
	// returns true or false
	function SelectDB($dbName) 
	{
		$this->databaseName = $dbName;
		if ($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)
	{
		$offsetStr =($offset>=0) ? "$offset," : '';
		
		if ($secs)
			$rs =& $this->CacheExecute($secs,$sql." LIMIT $offsetStr$nrows",$inputarr);
		else
			$rs =& $this->Execute($sql." LIMIT $offsetStr$nrows",$inputarr);
		return $rs;
	}
	
	
	// returns queryID or false
	function _query($sql,$inputarr)
	{
	//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->_connectionID = false;
	}

	
	/*
	* Maximum size of C field
	*/
	function CharMax()
	{
		return 255; 
	}
	
	/*
	* Maximum size of X field
	*/
	function TextMax()
	{
		return 4294967295; 
	}
	
}
	
/*--------------------------------------------------------------------------------------
	 Class Name: Recordset
--------------------------------------------------------------------------------------*/

class ADORecordSet_mysql extends ADORecordSet{	
	
	var $databaseType = "mysql";
	var $canSeek = true;
	
	function ADORecordSet_mysql($queryID,$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;
		default:
		case ADODB_FETCH_DEFAULT:
		case ADODB_FETCH_BOTH:$this->fetchMode = MYSQL_BOTH; break;
		}
	
		$this->ADORecordSet($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);
			$o->max_length = @mysql_field_len($this->_queryID,$fieldOffset); // suggested by: Jim Nicholson ([e-mail])
			//$o->max_length = -1; // mysql returns the max length less spaces -- so it is unrealiable
			$o->binary = (strpos($f,'binary')!== false);
		}
		else if ($fieldOffset == -1) {	/*	The $fieldOffset argument is not provided thus its -1 	*/
			$o = @mysql_fetch_field($this->_queryID);
			$o->max_length = @mysql_field_len($this->_queryID); // suggested by: Jim Nicholson ([e-mail])
			//$o->max_length = -1; // mysql returns the max length less spaces -- so it is unrealiable
		}
			
		return $o;
	}

	function &GetRowAssoc($upper=true)
	{
		if ($this->fetchMode == MYSQL_ASSOC && !$upper) return $this->fields;
		$row =& ADORecordSet::GetRowAssoc($upper);
		return $row;
	}
	
	/* Use associative array to get fields array */
	function Fields($colname)
	{	
		// added @ by "Michael William Miller" <[e-mail]>
		if ($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);
	}
	
	
	// 10% speedup to move MoveNext to child class
	function MoveNext() 
	{
	//global $ADODB_EXTENSION;if ($ADODB_EXTENSION) return adodb_movenext($this);
	
		if ($this->EOF) return false;
				
		$this->_currentRow++;
		$this->fields = @mysql_fetch_array($this->_queryID,$this->fetchMode);
		if (is_array($this->fields)) return true;
		
		$this->EOF = true;
		
		/* -- tested raising an error -- appears pointless
		$conn = $this->connection;
		if ($conn && $conn->raiseErrorFn && ($errno = $conn->ErrorNo())) {
			$fn = $conn->raiseErrorFn;
			$fn($conn->databaseType,'MOVENEXT',$errno,$conn->ErrorMsg().' ('.$this->sql.')',$conn->host,$conn->database);
		}
		*/
		return false;
	}	
	
	function _fetch()
	{
		$this->fields =  @mysql_fetch_array($this->_queryID,$this->fetchMode);
		return is_array($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;
		}
		
		$len = -1; // mysql max_length is not accurate
		switch (strtoupper($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':
			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 'N';
		}
	}

}
}

// (c-file-style: "gnu")
// Local Variables:
// mode: php
// tab-width: 8
// c-basic-offset: 4
// c-hanging-comment-ender-p: nil
// indent-tabs-mode: nil
// End:   
?>