DB.php
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<? include $_SERVER["DOCUMENT_ROOT"] . '/common/classes/comm/Constants.php'; ?>
<?
/**
최종버전 : 2.0
표시자 : nukiboy
수정자 : dev.lee
**/
if(! class_exists("DB") )
{
// 데이터 베이스 접속 및 쿼리 처리 class
class DB extends Constants
{
var $db; //db connection
var $result ; //result set
var $debug = true ; //is debug??
var $charset = "UTF8" ;
function __construct ()
{
$this->connect_db($this->dbHost, $this->dbUser, $this->dbPass,$this->dbName,$this->charset) ;
}
/*
터이터 베이스에 접속하는 함수
*/
function connect_db($db_host, $db_user, $db_pass, $db_name,$db_connection_set)
{
$this->db = new mysqli($db_host, $db_user, $db_pass, $db_name);
// 20091222 added by nukiboy
$this->db->set_charset( $db_connection_set ) ;
//접속실패시 메시지
$this->check_connect() ;
}
/*
db에서 select 쿼리를 실행하는 함수
*/
function query($query)
{
if( $this->check_connect() == false )
return ;
$this->result = @mysqli_query($this->db,$query) or die( ( $this->debug ) ? mysqli_error( $this->db ) : "Error : excute query" ) ;
}
/*
db에 다중 쿼리를 실행한다
*/
function multi_query($query)
{
return @mysqli_multi_query($this->db,$query) or die( ( $this->debug ) ? mysqli_error( $this->db ) : "Error : excute multi query" ) ;
}
/*
데이터 베이스 접속 체크
*/
function check_connect()
{
if( mysqli_connect_errno() )
{
$this->trace_error("Connect failed. db 접속이 유효하지 않습니다.");
return false ;
}
return true ;
}
/*
db 에서 insert, delect, update 쿼리를 실행하는 함수
return : 적용된 rows 수, 에러가 있다면, -1를 반환
*/
function update($query)
{
try
{
$this->query($query) ;
return mysqli_affected_rows($this->db) ;
}
catch(Exception $e)
{
throw new Exception("update error") ;
}
}
/*
결과셋의 다음 행 반환
*/
function next_row()
{
$assoc = $this->result->fetch_assoc() ;
return $assoc ;
}
// 20091222 added by nukiboy
function getNum()
{
return mysqli_num_rows($this->result) ;
}
function next_result()
{
if(mysqli_more_results($this->db))
return $this->db->next_result () ;
else
false;
}
function mysql_insert_id()
{
return mysqli_insert_id($this->db) ;
}
/*
에러 메세지를 출력한다.
*/
function trace_error($msg)
{
if( $this->debug )
{
echo "</UL></DL></OL>\n";
echo "</TABLE></SCRIPT>\n";
$text = "<FONT COLOR=\"#ff0000\"><P>Error: $msg : </p>";
$text .= mysql_error();
$text .= "</FONT>\n";
die($text);
}
}
/*
db 와 연결된 자원을 반납한다.
페이지 output이 끝나면 자동적으로 접속이 끊기지만, 명시적으로
db접속이 끊기는걸 넣어주는게 좋습니다.
*/
function destroy()
{
if(is_resource($this->result)) mysql_free_result($this->result);
mysql_close($this->db);
}
/*
destroy()라는 이름보다 close()를 선호하실거 같아 넣었습니다.
*/
function close()
{
$this->destroy();
}
function getValue($sql,$col)
{
$row = $this->getRow($sql) ;
// added by nukiboy 2012.02.25
if( $row == null )
return 0 ;
else
return $row[$col] ;
}
function getRow($sql)
{
$this->query($sql) ;
$row = null ;
if( 1 <= $this->getNum())
$row = $this->next_row() ;
$this->result->close();
return $row ;
}
function getMultiRow($sql)
{
$this->multi_query($sql) ;
return $this->next_row() ;
}
//배열 가져오기
function getArray($sql)
{
$this->query($sql) ;
$arrResult = Array() ;
$i = 0 ;
while($row = $this->next_row()){
$arrResult[$i] = $row ;
$i ++ ;
}
$this->result->close();
return $arrResult ;
}
//배열 가져오기
function getMultiArray($sql)
{
$isResult = $this->multi_query($sql) ;
if( $isResult )
{
$pack = Array() ;
$multiNum = 0 ;
do
{
if ($this->result = $this->db->store_result())
{
$set = Array() ;
$i = 0 ;
while( $row = $this->next_row() )
{
$set[$i] = $row ;
$i ++ ;
}
$this->result->close();
$pack[$multiNum] = $set ;
$multiNum ++ ;
}
}
while( $this->next_result() );
}
// $this->db->close();
return $pack ;
}
//업데이트
function techOfUpdate($sno,$dynaT,$data)
{
$dynaSQL = "" ;
$len = sizeof($data) ;
$i = 1 ;
foreach($data as $key => $value)
{
if( $value == "" )
{
$tmp = explode("+",$value) ;
$dynaSQL .= (sizeof($tmp) >= 1) ? "`$key` = '$value'" : "`$key` = '$value'" ;
}
else if( $value == "now()" || $value == "NOW()" )
$dynaSQL .= "`$key` = now()" ;
else
{
$tmp = explode("+",$value) ;
$dynaSQL .= (sizeof($tmp) >= 1) ? "`$key` = '$value'" : "`$key` = '$value'" ;
}
$dynaSQL .= ( $i != $len ) ? "," : "" ;
$i++ ;
}
$this->pkName = ($this->pkName == "") ? "no" : $this->pkName ;
$sql = "UPDATE
$dynaT
SET
$dynaSQL
WHERE
{$this->pkName} = '$sno'
" ;
return $this->update($sql) ;
}
// add by dev.lee
function techOfInsertForUpdate($dynaT,$data)
{
$dynaSQL1 = "" ;
$dynaSQL2 = "" ;
$len = sizeof($data) ;
$i = 1 ;
while (list ($key, $val) = each ($data)) {
$dynaSQL1 .= "`" . $key . "`" ;
$dynaSQL1 .= ( $i != $len ) ? "," : "" ;
if( $val == "" )
{
$dynaSQL2 .= "'" . $val . "'" ;
}
else if( $val == "now()" ) {
$dynaSQL2 .= "now()" ;
}
else {
$dynaSQL2 .= "'" . $val . "'" ;
}
$dynaSQL2 .= ( $i != $len ) ? "," : "" ;
$i++ ;
}
$sql = "INSERT INTO
$dynaT
($dynaSQL1)
VALUES
($dynaSQL2)
" ;
// echo $sql . "<BR />";
return $this->update($sql) ;
}
//프로시저 호출 스트링 생성
function strCallProc($procName,$arrParam,$arrRet)
{
$str = "call " . $procName . "(" ;
$isParam = false ;
for( $i = 0 ; $i < sizeof($arrParam) ; $i ++ )
{
$str .= ( $i == 0 ) ? "" : "," ;
$str .= "'" . $arrParam[$i] . "'";
$isParam = true ;
}
if( $isParam )
$str .= "," ;
$isRet = false ;
foreach($arrRet as $key => $value)
{
if( $isRet )
$str .= "," ;
$str .= $value ;
$isRet = true ;
}
$str .= ");" ;
if( sizeof($arrRet) > 0 )
{
$str .= "select " ;
foreach($arrRet as $key => $value)
{
$str .= " " . $value . " as " . $key ;
}
}
$str .= ";" ;
return $str ;
}
//프로시저 호출 스트링 생성
function strCallProc2($procName,$arrParam,$arrRet)
{
$str = "call " . $procName . "(" ;
$isParam = false ;
for( $i = 0 ; $i < sizeof($arrParam) ; $i ++ )
{
$str .= ( $i == 0 ) ? "" : "," ;
$str .= "'" . $arrParam[$i] . "'";
$isParam = true ;
}
if( $isParam && sizeof($arrRet) > 0)
$str .= "," ;
$isRet = false ;
foreach($arrRet as $key => $value)
{
if( $isRet )
$str .= "," ;
$str .= $value ;
$isRet = true ;
}
$str .= ");" ;
if( sizeof($arrRet) > 0 )
{
$str .= "select " ;
foreach($arrRet as $key => $value)
{
$str .= " " . $value . " as " . $key ;
}
$str .= ";" ;
}
return $str ;
}
//프로시저 호출 스트링 생성 version 3
function strCallProc3($procName,$arrParam)
{
$str = "call " . $procName . "(" ;
$isParam = false ;
for( $i = 0 ; $i < sizeof($arrParam) ; $i ++ )
{
$str .= ( $i == 0 ) ? "" : "," ;
$str .= "'" . $arrParam[$i] . "'";
$isParam = true ;
}
$str .= ");" ;
return $str ;
}
} ;
}
?>