Postgresql class및 설치form추가. 김상기(ioseph)님 제작. tyro님 추가

git-svn-id: http://xe-core.googlecode.com/svn/sandbox@3276 201d5d3c-b55e-5fd7-737f-ddc643e51545
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zero 2007-12-10 01:00:18 +00:00
parent 996830ff59
commit dfe367865b
2 changed files with 662 additions and 0 deletions

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<?php
/**
* @class DBPostgreSQL
* @author ioseph (ioseph@postgresql.kr)
* @brief MySQL DBMS를 이용하기 위한 class
* @version 0.1
*
* postgresql handling class
**/
class DBPostgresql extends DB {
/**
* @brief PostgreSQL DB에 접속하기 위한 정보
**/
var $hostname = '127.0.0.1'; ///< hostname
var $userid = NULL; ///< user id
var $password = NULL; ///< password
var $database = NULL; ///< database
var $prefix = 'xe'; ///< 제로보드에서 사용할 테이블들의 prefix (한 DB에서 여러개의 제로보드 설치 가능)
/**
* @brief postgresql에서 사용될 column type
*
* column_type은 schema/query xml에서 공통 선언된 type을 이용하기 때문에
* DBMS에 맞게 replace 해주어야 한다
**/
var $column_type = array(
'bignumber' => 'bigint',
'number' => 'integer',
'varchar' => 'varchar',
'char' => 'char',
'text' => 'text',
'bigtext' => 'text',
'date' => 'varchar(14)',
);
/**
* @brief constructor
**/
function DBPostgresql() {
$this->_setDBInfo();
$this->_connect();
}
/**
* @brief 설치 가능 여부를 return
**/
function isSupported() {
if(!function_exists('pg_connect')) return false;
return true;
}
/**
* @brief DB정보 설정 connect/ close
**/
function _setDBInfo() {
$db_info = Context::getDBInfo();
$this->hostname = $db_info->db_hostname;
$this->userid = $db_info->db_userid;
$this->password = $db_info->db_password;
$this->database = $db_info->db_database;
$this->prefix = $db_info->db_table_prefix;
if(!substr($this->prefix,-1)!='_') $this->prefix .= '_';
}
/**
* @brief DB 접속
**/
function _connect() {
// pg용 connection string
$conn_string = "";
// db 정보가 없으면 무시
if(!$this->hostname || !$this->userid || !$this->password || !$this->database) return;
// connection string 만들기
$conn_string .= ($this->hostname) ? " host=$this->hostname" : "";
$conn_string .= ($this->userid) ? " user=$this->userid" : "";
$conn_string .= ($this->password) ? " password=$this->password" : "";
$conn_string .= ($this->database) ? " dbname=$this->database" : "";
$conn_string .= ($this->port) ? " port=$this->port" : "";
// 접속시도
$this->fd = @pg_connect($conn_string);
if(pg_connection_status($this->fd) != PGSQL_CONNECTION_OK) {
$this->setError(-1, "CONNECTION FAILURE");
return;
}
// 접속체크
$this->is_connected = true;
// utf8임을 지정
$this ->_query('set client_encoding to uhc')
}
/**
* @brief DB접속 해제
**/
function close() {
if(!$this->isConnected()) return;
@pg_close($this->fd);
}
/**
* @brief 쿼리에서 입력되는 문자열 변수들의 quotation 조절
**/
function addQuotes($string) {
if(get_magic_quotes_gpc()) $string = stripslashes(str_replace("\\","\\\\",$string));
if(!is_numeric($string)) $string = @pg_escape_string($string);
return $string;
}
/**
* @brief 트랜잭션 시작
**/
function begin() {
if(!$this->isConnect() || $this->transaction_started == false) return;
if($this->_query($this->fd, 'BEGIN'))
$this->transaction_started = true;
}
/**
* @brief 롤백
**/
function rollback() {
if(!$this->isConnect() || $this->transaction_started == false) return;
if($this->_query($this->fd, 'ROLLBACK'))
$this->transaction_started = false;
}
/**
* @brief 커밋
**/
function commit() {
if(!$this->isConnect() || $this->transaction_started == false) return;
if($this->_query($this->fd, 'COMMIT'))
$this->transaction_started = false;
}
/**
* @brief : 쿼리문의 실행 결과의 fetch 처리
*
* query : query문 실행하고 result return\n
* fetch : reutrn 값이 없으면 NULL\n
* rows이면 array object\n
* row이면 object\n
* return\n
**/
function _query($query) {
if(!$this->isConnected()) return;
// 쿼리 시작을 알림
$this->actStart($query);
// 쿼리 문 실행
$result = @pg_query($this->fd, $query);
// 오류 체크
if(!$result) $this->setError(1, pg_last_error($this->fd));
// 쿼리 실행 종료를 알림
$this->actFinish();
// 결과 리턴
return $result;
}
/**
* @brief 결과를 fetch
**/
function _fetch($result) {
if(!$this->isConnected() || $this->isError() || !$result) return;
while($tmp = pg_fetch_object($result)) {
$output[] = $tmp;
}
if(count($output)==1) return $output[0];
return $output;
}
/**
* @brief 1 증가되는 sequence값을 return (postgresql의 auto_increment는 sequence테이블에서만 사용)
**/
function getNextSequence() {
$query = sprintf("select nextval('%ssequence') as seq", $this->prefix);
$result = $this->_query($query);
$tmp = $this->_fetch($result);
return $tmp->seq;
}
/**
* @brief 테이블 기생성 여부 return
**/
function isTableExists($target_name) {
$query = sprintf("SELECT tablename FROM pg_tables WHERE tablename = '%s%s' AND schemaname = current_schema()", $this->prefix, $this->addQuotes($target_name));
$result = $this->_query($query);
$tmp = $this->_fetch($result);
if(!$tmp) return false;
return true;
}
/**
* @brief 특정 테이블에 특정 column 추가
**/
function addColumn($table_name, $column_name, $type='number', $size='', $default = '', $notnull=false) {
$type = $this->column_type[$type];
if(strtoupper($type)=='INTEGER' || strtoupper($type)=='BIGINT') $size = '';
$query = sprintf("alter table %s%s add %s ", $this->prefix, $table_name, $column_name);
if($size) $query .= sprintf(" %s(%s) ", $type, $size);
else $query .= sprintf(" %s ", $type);
if($default) $query .= sprintf(" default '%s' ", $default);
if($notnull) $query .= " not null ";
$this->_query($query);
}
/**
* @brief 특정 테이블의 column의 정보를 return
**/
function isColumnExists($table_name, $column_name) {
$query = sprintf("select column_name from information_schema.columns where table_schema = current_schema() and table_name = '%s%s' and column_name = '%s'", $this->prefix, $this->addQuotes($table_name), strtolower($column_name));
$result = $this->_query($query);
if($this->isError()) return;
$output = $this->_fetch($result);
if($output) return true;
return false;
}
/**
* @brief 특정 테이블에 특정 인덱스 추가
* $target_columns = array(col1, col2)
* $is_unique? unique : none
**/
function addIndex($table_name, $index_name, $target_columns, $is_unique = false) {
if(!is_array($target_columns)) $target_columns = array($target_columns);
$query = sprintf("create %s index %s on %s (%s);", $is_unique?'unique':'', $index_name, $table_name, implode(',',$target_columns));
$this->_query($query);
}
/**
* @brief 특정 테이블의 index 정보를 return
**/
function isIndexExists($table_name, $index_name) {
//$query = sprintf("show indexes from %s%s where key_name = '%s' ", $this->prefix, $table_name, $index_name);
$query = sprintf("select indexname from pg_indexes where schemaname = current_schema() and tablename = '%s%s' and indexname = '%s'", $this->prefix, $table_name, strtolower($index_name));
$result = $this->_query($query);
if($this->isError()) return;
$output = $this->_fetch($result);
if($output) return true;
return false;
}
/**
* @brief xml 받아서 테이블을 생성
**/
function createTableByXml($xml_doc) {
return $this->_createTable($xml_doc);
}
/**
* @brief xml 받아서 테이블을 생성
**/
function createTableByXmlFile($file_name) {
if(!file_exists($file_name)) return;
// xml 파일을 읽음
$buff = FileHandler::readFile($file_name);
return $this->_createTable($buff);
}
/**
* @brief schema xml을 이용하여 create table query생성
*
* type : number, varchar, text, char, date, \n
* opt : notnull, default, size\n
* index : primary key, index, unique\n
**/
function _createTable($xml_doc) {
// xml parsing
$oXml = new XmlParser();
$xml_obj = $oXml->parse($xml_doc);
// 테이블 생성 schema 작성
$table_name = $xml_obj->table->attrs->name;
if($table_name == 'sequence') {
$query = sprintf('create sequence %s', $this->prefix.$table_name);
return $this->_query($query);
}
if($this->isTableExists($table_name)) return;
$table_name = $this->prefix.$table_name;
if(!is_array($xml_obj->table->column)) $columns[] = $xml_obj->table->column;
else $columns = $xml_obj->table->column;
foreach($columns as $column) {
$name = $column->attrs->name;
$type = $column->attrs->type;
$size = $column->attrs->size;
$notnull = $column->attrs->notnull;
$primary_key = $column->attrs->primary_key;
$index = $column->attrs->index;
$unique = $column->attrs->unique;
$default = $column->attrs->default;
$auto_increment = $column->attrs->auto_increment;
if($type == "bignumber" || $type == "number") $size = 0;
$column_schema[] = sprintf('%s %s%s %s %s',
$name,
$this->column_type[$type],
$size?'('.$size.')':'',
$default?"default '".$default."'":'',
$notnull?'not null':''
);
if($primary_key) $primary_list[] = $name;
else if($unique) $unique_list[$unique][] = $name;
else if($index) $index_list[$index][] = $name;
}
if(count($primary_list)) {
$column_schema[] = sprintf("primary key (%s)", implode($primary_list,','));
}
if(count($unique_list)) {
foreach($unique_list as $key => $val) {
$column_schema[] = sprintf("unique (%s)", implode($val,','));
}
}
$schema = sprintf('create table %s (%s%s);', $this->addQuotes($table_name), "\n", implode($column_schema,",\n"));
$output = $this->_query($schema);
if(count($index_list)) {
foreach($index_list as $key => $val) {
if(!$this->isIndexExists($table_name, $key)) $this->addIndex($table_name, $key, $val);
}
}
if(!$output) return false;
}
/**
* @brief 조건문 작성하여 return
**/
function getCondition($output) {
if(!$output->conditions) return;
foreach($output->conditions as $key => $val) {
$sub_condition = '';
foreach($val['condition'] as $k =>$v) {
if(!$v['value']) continue;
$name = $v['column'];
$operation = $v['operation'];
$value = $v['value'];
$type = $this->getColumnType($output->column_type,$name);
$pipe = $v['pipe'];
$value = $this->getConditionValue($name, $value, $operation, $type, $output->column_type);
if(!$value) $value = $v['value'];
$str = $this->getConditionPart($name, $value, $operation);
if($sub_condition) $sub_condition .= ' '.$pipe.' ';
$sub_condition .= $str;
}
if($sub_condition) {
if($condition && $val['pipe']) $condition .= ' '.$val['pipe'].' ';
$condition .= '('.$sub_condition.')';
}
}
if($condition) $condition = ' where '.$condition;
return $condition;
}
/**
* @brief insertAct 처리
**/
function _executeInsertAct($output) {
// 테이블 정리
foreach($output->tables as $key => $val) {
$table_list[] = $this->prefix.$key;
}
// 컬럼 정리
foreach($output->columns as $key => $val) {
$name = $val['name'];
$value = $val['value'];
if($output->column_type[$name]!='number') {
$value = "'".$this->addQuotes($value)."'";
if(!$value) $value = 'null';
} elseif(!$value || is_numeric($value)) $value = (int)$value;
$column_list[] = $name;
$value_list[] = $value;
}
$query = sprintf("insert into %s (%s) values (%s);", implode(',',$table_list), implode(',',$column_list), implode(',', $value_list));
return $this->_query($query);
}
/**
* @brief updateAct 처리
**/
function _executeUpdateAct($output) {
// 테이블 정리
foreach($output->tables as $key => $val) {
$table_list[] = $this->prefix.$key.' as '.$val;
}
// 컬럼 정리
foreach($output->columns as $key => $val) {
if(!isset($val['value'])) continue;
$name = $val['name'];
$value = $val['value'];
if(strpos($name,'.')!==false&&strpos($value,'.')!==false) $column_list[] = $name.' = '.$value;
else {
if($output->column_type[$name]!='number') $value = "'".$this->addQuotes($value)."'";
elseif(!$value || is_numeric($value)) $value = (int)$value;
$column_list[] = sprintf("%s = %s", $name, $value);
}
}
// 조건절 정리
$condition = $this->getCondition($output);
$query = sprintf("update %s set %s %s", implode(',',$table_list), implode(',',$column_list), $condition);
return $this->_query($query);
}
/**
* @brief deleteAct 처리
**/
function _executeDeleteAct($output) {
// 테이블 정리
foreach($output->tables as $key => $val) {
$table_list[] = $this->prefix.$key;
}
// 조건절 정리
$condition = $this->getCondition($output);
$query = sprintf("delete from %s %s", implode(',',$table_list), $condition);
return $this->_query($query);
}
/**
* @brief selectAct 처리
*
* select의 경우 특정 페이지의 목록을 가져오는 것을 편하게 하기 위해\n
* navigation이라는 method를 제공
**/
function _executeSelectAct($output) {
// 테이블 정리
$table_list = array();
foreach($output->tables as $key => $val) {
$table_list[] = $this->prefix.$key .' as '.$val;
}
if(!$output->columns) {
$columns = '*';
} else {
$column_list = array();
foreach($output->columns as $key => $val) {
$name = $val['name'];
$alias = $val['alias'];
if(substr($name,-1) == '*') {
$column_list[] = $name;
} elseif(strpos($name,'.')===false && strpos($name,'(')===false) {
if($alias) $column_list[] = sprintf('%s as %s', $name, $alias);
else $column_list[] = sprintf('%s',$name);
} else {
if($alias) $column_list[] = sprintf('%s as %s', $name, $alias);
else $column_list[] = sprintf('%s',$name);
}
}
$columns = implode(',',$column_list);
}
$condition = $this->getCondition($output);
if($output->list_count && $output->page) return $this->_getNavigationData($table_list, $columns, $condition, $output);
// list_order, update_order 로 정렬시에 인덱스 사용을 위해 condition에 쿼리 추가
if($output->order) {
$conditions = $this->getConditionList($output);
if(!in_array('list_order', $conditions) && !in_array('update_order', $conditions)) {
foreach($output->order as $key => $val) {
$col = $val[0];
if(!in_array($col, array('list_order','update_order'))) continue;
if($condition) $condition .= sprintf(' and %s < 2100000000 ', $col);
else $condition = sprintf(' where %s < 2100000000 ', $col);
}
}
}
$query = sprintf("select %s from %s %s", $columns, implode(',',$table_list), $condition);
if(count($output->groups)) $query .= sprintf(' group by %s', implode(',',$output->groups));
if($output->order) {
foreach($output->order as $key => $val) {
$index_list[] = sprintf('%s %s', $val[0], $val[1]);
}
if(count($index_list)) $query .= ' order by '.implode(',',$index_list);
}
$result = $this->_query($query);
if($this->isError()) return;
$data = $this->_fetch($result);
$buff = new Object();
$buff->data = $data;
return $buff;
}
/**
* @brief query xml에 navigation 정보가 있을 경우 페이징 관련 작업을 처리한다
*
* 그닥 좋지는 않은 구조이지만 편리하다.. -_-;
**/
function _getNavigationData($table_list, $columns, $condition, $output) {
require_once('./classes/page/PageHandler.class.php');
// 전체 개수를 구함
$count_query = sprintf("select count(*) as count from %s %s", implode(',',$table_list), $condition);
$result = $this->_query($count_query);
$count_output = $this->_fetch($result);
$total_count = (int)$count_output->count;
$list_count = $output->list_count['value'];
if(!$list_count) $list_count = 20;
$page_count = $output->page_count['value'];
if(!$page_count) $page_count = 10;
$page = $output->page['value'];
if(!$page) $page = 1;
// 전체 페이지를 구함
if($total_count) $total_page = (int)( ($total_count-1) / $list_count) + 1;
else $total_page = 1;
// 페이지 변수를 체크
if($page > $total_page) $page = $total_page;
$start_count = ($page-1)*$list_count;
// list_order, update_order 로 정렬시에 인덱스 사용을 위해 condition에 쿼리 추가
if($output->order) {
$conditions = $this->getConditionList($output);
if(!in_array('list_order', $conditions) && !in_array('update_order', $conditions)) {
foreach($output->order as $key => $val) {
$col = $val[0];
if(!in_array($col, array('list_order','update_order'))) continue;
if($condition) $condition .= sprintf(' and %s < 2100000000 ', $col);
else $condition = sprintf(' where %s < 2100000000 ', $col);
}
}
}
$query = sprintf("select %s from %s %s", $columns, implode(',',$table_list), $condition);
if(count($output->groups)) $query .= sprintf(' group by %s', implode(',',$output->groups));
if(count($output->order)) {
foreach($output->order as $key => $val) {
$index_list[] = sprintf('%s %s', $val[0], $val[1]);
}
if(count($index_list)) $query .= ' order by '.implode(',',$index_list);
}
$query = sprintf('%s offset %d limit %d', $query, $start_count, $list_count);
$result = $this->_query($query);
if($this->isError()) {
$buff = new Object();
$buff->total_count = 0;
$buff->total_page = 0;
$buff->page = 1;
$buff->data = array();
$buff->page_navigation = new PageHandler($total_count, $total_page, $page, $page_count);
return $buff;
}
$virtual_no = $total_count - ($page-1)*$list_count;
while($tmp = pg_fetch_object($result)) {
$data[$virtual_no--] = $tmp;
}
$buff = new Object();
$buff->total_count = $total_count;
$buff->total_page = $total_page;
$buff->page = $page;
$buff->data = $data;
$buff->page_navigation = new PageHandler($total_count, $total_page, $page, $page_count);
return $buff;
}
}
?>

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<!--%import("filter/mysql.xml")-->
<!--%import("js/install_admin.js")-->
<!--#include("header.html")-->
<form action="./" method="post" onsubmit="return procFilter(this, install)">
<input type="hidden" name="db_type" value="{$db_type}" />
<h2>{$lang->form_title}</h2>
<table cellspacing="0" class="tableType7">
<col width="100" />
<col width="160" />
<col />
<tr>
<th rowspan="6" class="hr" scope="row">{$db_type}</th>
<th class="second" scope="row"><label for="textfield11">{$lang->db_hostname}</label></th>
<td><input type="text" name="db_hostname" value="localhost" class="inputTypeText w100" id="textfield11" /></td>
</tr>
<tr>
<th class="second" scope="row"><label for="textfield12">{$lang->db_port}</label></th>
<td><input type="text" name="db_port" value="5432" class="inputTypeText w100" id="textfield12" /></td>
</tr>
<tr>
<th class="second" scope="row"><label for="textfield13">{$lang->db_userid}</label></th>
<td><input type="text" name="db_userid" value="" class="inputTypeText w100" id="textfield13" /></td>
</tr>
<tr>
<th class="second" scope="row"><label for="textfield14">{$lang->db_password}</label></th>
<td><input type="password" name="db_password" value="" class="inputTypeText w100" id="textfield14" /></td>
</tr>
<tr>
<th class="second" scope="row"><label for="textfield15">{$lang->db_database}</label></th>
<td><input type="text" name="db_database" value="" class="inputTypeText w100" id="textfield15" /></td>
</tr>
<tr>
<th class="second hr" scope="row"><label for="textfield16">{$lang->db_table_prefix}</label></th>
<td class="hr"><input type="text" name="db_table_prefix" value="xe" class="inputTypeText w100" id="textfield16" /></td>
</tr>
<!--#include("form.install.html")-->
</table>
<div class="buttonCenter">
<span class="button"><input type="submit" value="{$lang->cmd_registration}" /></span>
</div>
</form>
<!--#include("footer.html")-->