<?php

DEFINE ('DOLPHIN_VERSION', $site['ver'] );

class BxDolDatabaseBackup extends  BxDolDb {
//class BxDolDatabaseBackup extends  CMySQL {

   var $sCharset,  $sCollate;
   var $sInputs; 

   function BxDolDatabaseBackup($sCharset = 'utf8',  $sCollate = 'utf8_unicode_ci') {
   
	 $this -> sCharset = $sCharset;
	 $this -> sCollate = $sCollate;
	 $this -> sInputs  =
'-- 
-- Database Dump For Dolphin: ' . DOLPHIN_VERSION . '
-- 

';
   
   }

	function _getTableStruct($name, $data = 0) {
		if ($data != 1) { ## 1 only data 
			##Read table structure
			$Query = "SHOW CREATE TABLE {$name}";
			$Result =  db_res($Query);	
			
			$this -> sInputs .=
"
-- 
-- Table structure for table `{$name}`
-- 

DROP TABLE IF EXISTS `{$name}`;
";
			
			while($Row = @mysql_fetch_row($Result))
				$this -> sInputs .= preg_replace("/ENGINE=.*/",  "ENGINE=MyISAM DEFAULT CHARSET={$this -> sCharset};\n",  $Row[1]); 
		}
		
		
		###	Read data from table 
		if ($data != 0)	{ ##Only strucure 
		
			$this -> sInputs .= 
"
-- 
-- Dumping data for table `{$name}`
--

";
			
			$Query = "SELECT *  FROM {$name} ";
			$Result =  db_res($Query);	
			
			while($Row = @mysql_fetch_row($Result)) {
				$this -> sInputs .= "INSERT INTO `{$name}` VALUES (";
			
				for ($j = 0; $j < count($Row); $j++ ) {
					if( is_null( $Row[$j] ) )
							$this -> sInputs .= "NULL, ";
					else //string or numeric
							$this -> sInputs .= "'" . my_escape_string($Row[$j]) . "', ";
				}
				
				$this -> sInputs = substr ($this -> sInputs, 0, strrpos($this -> sInputs, ',')); //delete last ,
				$this -> sInputs .= ");\n";
			}
			$this -> sInputs .= "\n-- --------------------------------------------------------\n";
		}
	}

	function _getAllTables($data = false) {
		$Query = "SHOW TABLES";
		$Result =  db_res($Query);	
		while($Row = mysql_fetch_row($Result))
			$this -> _getTableStruct($Row[0], $data);
	}
	
	function _restoreFromDumpFile($file) {
		return execSqlFile( $file );
	}
	
}

function my_escape_string( $text )
{
	$text = str_replace( '\\', '\\\\', $text );
	$text = str_replace( '\'', '\'\'', $text );
	$text = str_replace( "\n", '\\n', $text );
	$text = str_replace( "\r", '\\r', $text );
	return $text;
}

?>
