mirror of
https://github.com/Lastorder-DC/rhymix.git
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abf5a1f5a3
git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@8700 201d5d3c-b55e-5fd7-737f-ddc643e51545
572 lines
20 KiB
PHP
572 lines
20 KiB
PHP
<?php
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/**
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* @class DBMSSQL
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* @author NHN (developers@xpressengine.com)
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* @brief Modified to use MSSQL driver by sol (sol@ngleader.com)
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* @version 0.1
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**/
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class DBMssql extends DB {
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/**
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* information to connect to DB
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**/
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var $conn = NULL;
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var $database = NULL; ///< database
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var $prefix = 'xe'; // / <prefix of XE tables(One more XE can be installed on a single DB)
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var $param = array();
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var $comment_syntax = '/* %s */';
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/**
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* @brief column type used in mssql
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*
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* column_type should be replaced for each DBMS's type
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* becasue it uses commonly defined type in the schema/query xml
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**/
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var $column_type = array(
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'bignumber' => 'bigint',
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'number' => 'int',
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'varchar' => 'varchar',
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'char' => 'char',
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'text' => 'text',
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'bigtext' => 'text',
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'date' => 'varchar(14)',
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'float' => 'float',
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);
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/**
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* @brief constructor
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**/
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function DBMssql() {
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$this->_setDBInfo();
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$this->_connect();
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}
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/**
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* @brief create an instance of this class
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*/
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function create()
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{
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return new DBMssql;
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}
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/**
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* @brief Return if installable
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**/
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function isSupported() {
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if (!extension_loaded("sqlsrv")) return false;
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return true;
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}
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/**
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* @brief DB settings and connect/close
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**/
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function _setDBInfo() {
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$db_info = Context::getDBInfo();
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$this->hostname = $db_info->db_hostname;
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$this->port = $db_info->db_port;
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$this->userid = $db_info->db_userid;
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$this->password = $db_info->db_password;
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$this->database = $db_info->db_database;
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$this->prefix = $db_info->db_table_prefix;
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if(!substr($this->prefix,-1)!='_') $this->prefix .= '_';
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}
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/**
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* @brief DB Connection
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**/
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function _connect() {
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// ignore if db information not exists
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if(!$this->hostname || !$this->database) return;
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//sqlsrv_configure( 'WarningsReturnAsErrors', 0 );
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//sqlsrv_configure( 'LogSeverity', SQLSRV_LOG_SEVERITY_ALL );
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//sqlsrv_configure( 'LogSubsystems', SQLSRV_LOG_SYSTEM_ALL );
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$this->conn = sqlsrv_connect( $this->hostname,
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array( 'Database' => $this->database,'UID'=>$this->userid,'PWD'=>$this->password ));
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// Check connections
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if($this->conn){
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$this->is_connected = true;
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$this->password = md5($this->password);
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}else{
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$this->is_connected = false;
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}
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}
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/**
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* @brief DB disconnect
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**/
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function close() {
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if($this->is_connected == false) return;
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$this->commit();
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sqlsrv_close($this->conn);
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$this->conn = null;
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}
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/**
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* @brief handles quatation of the string variables from the query
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**/
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// TODO See what to do about this
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function addQuotes($string) {
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if(version_compare(PHP_VERSION, "5.9.0", "<") && get_magic_quotes_gpc()) $string = stripslashes(str_replace("\\","\\\\",$string));
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//if(!is_numeric($string)) $string = str_replace("'","''",$string);
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return $string;
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}
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/**
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* @brief Begin transaction
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**/
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function begin() {
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if($this->is_connected == false || $this->transaction_started) return;
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if(sqlsrv_begin_transaction( $this->conn ) === false) return;
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$this->transaction_started = true;
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}
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/**
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* @brief Rollback
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**/
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function rollback() {
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if($this->is_connected == false || !$this->transaction_started) return;
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$this->transaction_started = false;
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sqlsrv_rollback( $this->conn );
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}
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/**
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* @brief Commit
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**/
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function commit($force = false) {
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if(!$force && ($this->is_connected == false || !$this->transaction_started)) return;
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$this->transaction_started = false;
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sqlsrv_commit( $this->conn );
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}
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/**
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* @brief : executing the query and fetching the result
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*
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* query: run a query and return the result\n
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* fetch: NULL if no value returned \n
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* array object if rows returned \n
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* object if a row returned \n
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* return\n
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**/
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// TODO Support array arguments in sql server
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/*
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* $query_emp="select name from employee where id in (?,?,?)";
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$params_emp= Array(1,2,3);
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$res_emp = sqlsrv_query($conn, $query_emp, $params_emp);
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*
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*/
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function _query($query) {
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if($this->is_connected == false || !$query) return;
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$_param = array();
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if(count($this->param)){
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foreach($this->param as $k => $o){
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if($o->getType() == 'number'){
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$value = $o->getUnescapedValue();
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if(is_array($value)) $_param = array_merge($_param, $value);
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else $_param[] = $o->getUnescapedValue();
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}else{
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$value = $o->getUnescapedValue();
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if(is_array($value)) {
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foreach($value as $v)
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$_param[] = array($v, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING('utf-8'));
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}
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else $_param[] = array($value, SQLSRV_PARAM_IN, SQLSRV_PHPTYPE_STRING('utf-8'));
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}
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}
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}
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// Notify to start a query execution
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$this->actStart($query);
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// Run the query statement
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$result = false;
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if(count($_param)){
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$result = @sqlsrv_query($this->conn, $query, $_param);
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}else{
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$result = @sqlsrv_query($this->conn, $query);
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}
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// Error Check
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if(!$result) $this->setError(print_r(sqlsrv_errors(),true));
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// Notify to complete a query execution
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$this->actFinish();
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$this->param = array();
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return $result;
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}
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/**
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* @brief Fetch results
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**/
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function _fetch($result, $arrayIndexEndValue = NULL) {
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if(!$this->isConnected() || $this->isError() || !$result) return;
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$c = sqlsrv_num_fields($result);
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$m = null;
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$output = array();
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while(sqlsrv_fetch($result)){
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if(!$m) $m = sqlsrv_field_metadata($result);
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unset($row);
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for($i=0;$i<$c;$i++){
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$row->{$m[$i]['Name']} = sqlsrv_get_field( $result, $i, SQLSRV_PHPTYPE_STRING( 'utf-8' ));
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}
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if($arrayIndexEndValue) $output[$arrayIndexEndValue--] = $row;
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else $output[] = $row;
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}
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if(count($output)==1) {
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if(isset($arrayIndexEndValue)) return $output;
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else return $output[0];
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}
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return $output;
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}
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/**
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* @brief Return sequence value incremented by 1(auto_increment is usd in the sequence table only)
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**/
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function getNextSequence() {
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$query = sprintf("insert into %ssequence (seq) values (ident_incr('%ssequence'))", $this->prefix, $this->prefix);
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$this->_query($query);
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$query = sprintf("select ident_current('%ssequence')+1 as sequence", $this->prefix);
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$result = $this->_query($query);
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$tmp = $this->_fetch($result);
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return $tmp->sequence;
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}
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/**
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* @brief Return if a table already exists
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**/
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function isTableExists($target_name) {
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$query = sprintf("select name from sysobjects where name = '%s%s' and xtype='U'", $this->prefix, $this->addQuotes($target_name));
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$result = $this->_query($query);
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$tmp = $this->_fetch($result);
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if(!$tmp) return false;
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return true;
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}
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/**
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* @brief Add a column to a table
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**/
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function addColumn($table_name, $column_name, $type='number', $size='', $default = '', $notnull=false) {
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if($this->isColumnExists($table_name, $column_name)) return;
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$type = $this->column_type[$type];
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if(strtoupper($type)=='INTEGER') $size = '';
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$query = sprintf("alter table %s%s add %s ", $this->prefix, $table_name, $column_name);
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if($size) $query .= sprintf(" %s(%s) ", $type, $size);
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else $query .= sprintf(" %s ", $type);
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if($default) $query .= sprintf(" default '%s' ", $default);
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if($notnull) $query .= " not null ";
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$this->_query($query);
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}
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/**
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* @brief Delete a column from a table
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**/
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function dropColumn($table_name, $column_name) {
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if(!$this->isColumnExists($table_name, $column_name)) return;
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$query = sprintf("alter table %s%s drop %s ", $this->prefix, $table_name, $column_name);
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$this->_query($query);
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}
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/**
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* @brief Return column information of a table
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**/
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function isColumnExists($table_name, $column_name) {
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$query = sprintf("select syscolumns.name as name from syscolumns, sysobjects where sysobjects.name = '%s%s' and sysobjects.id = syscolumns.id and syscolumns.name = '%s'", $this->prefix, $table_name, $column_name);
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$result = $this->_query($query);
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if($this->isError()) return;
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$tmp = $this->_fetch($result);
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if(!$tmp->name) return false;
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return true;
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}
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/**
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* @brief Add an index to a table
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* $target_columns = array(col1, col2)
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* $is_unique? unique : none
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**/
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function addIndex($table_name, $index_name, $target_columns, $is_unique = false) {
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if($this->isIndexExists($table_name, $index_name)) return;
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if(!is_array($target_columns)) $target_columns = array($target_columns);
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$query = sprintf("create %s index %s on %s%s (%s)", $is_unique?'unique':'', $index_name, $this->prefix, $table_name, implode(',',$target_columns));
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$this->_query($query);
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}
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/**
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* @brief Drop an index from a table
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**/
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function dropIndex($table_name, $index_name, $is_unique = false) {
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if(!$this->isIndexExists($table_name, $index_name)) return;
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$query = sprintf("drop index %s%s.%s", $this->prefix, $table_name, $index_name);
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$this->_query($query);
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}
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/**
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* @brief Return index information of a table
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**/
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function isIndexExists($table_name, $index_name) {
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$query = sprintf("select sysindexes.name as name from sysindexes, sysobjects where sysobjects.name = '%s%s' and sysobjects.id = sysindexes.id and sysindexes.name = '%s'", $this->prefix, $table_name, $index_name);
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$result = $this->_query($query);
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if($this->isError()) return;
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$tmp = $this->_fetch($result);
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if(!$tmp->name) return false;
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return true;
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}
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/**
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* @brief Create a table by using xml file
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**/
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function createTableByXml($xml_doc) {
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return $this->_createTable($xml_doc);
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}
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/**
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* @brief Create a table by using xml file
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**/
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function createTableByXmlFile($file_name) {
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if(!file_exists($file_name)) return;
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// read xml file
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$buff = FileHandler::readFile($file_name);
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return $this->_createTable($buff);
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}
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/**
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* @brief generate a query statement to create a table by using schema xml
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*
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* type : number, varchar, text, char, date, \n
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* opt : notnull, default, size\n
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* index : primary key, index, unique\n
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**/
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function _createTable($xml_doc) {
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// xml parsing
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$oXml = new XmlParser();
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$xml_obj = $oXml->parse($xml_doc);
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// Create a table schema
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$table_name = $xml_obj->table->attrs->name;
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if($this->isTableExists($table_name)) return;
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if($table_name == 'sequence') {
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$table_name = $this->prefix.$table_name;
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$query = sprintf('create table %s ( sequence int identity(1,1), seq int )', $table_name);
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return $this->_query($query);
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} else {
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$table_name = $this->prefix.$table_name;
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if(!is_array($xml_obj->table->column)) $columns[] = $xml_obj->table->column;
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else $columns = $xml_obj->table->column;
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foreach($columns as $column) {
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$name = $column->attrs->name;
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$type = $column->attrs->type;
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$size = $column->attrs->size;
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$notnull = $column->attrs->notnull;
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$primary_key = $column->attrs->primary_key;
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$index = $column->attrs->index;
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$unique = $column->attrs->unique;
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$default = $column->attrs->default;
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$auto_increment = $column->attrs->auto_increment;
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$column_schema[] = sprintf('[%s] %s%s %s %s %s %s',
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$name,
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$this->column_type[$type],
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!in_array($type,array('number','text'))&&$size?'('.$size.')':'',
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$primary_key?'primary key':'',
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isset($default)?"default '".$default."'":'',
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$notnull?'not null':'null',
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$auto_increment?'identity(1,1)':''
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);
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if($unique) $unique_list[$unique][] = $name;
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else if($index) $index_list[$index][] = $name;
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}
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$schema = sprintf('create table [%s] (xe_seq int identity(1,1),%s%s)', $this->addQuotes($table_name), "\n", implode($column_schema,",\n"));
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$output = $this->_query($schema);
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if(!$output) return false;
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if(count($unique_list)) {
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foreach($unique_list as $key => $val) {
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$query = sprintf("create unique index %s on %s (%s);", $key, $table_name, '['.implode('],[',$val).']');
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$this->_query($query);
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}
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}
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if(count($index_list)) {
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foreach($index_list as $key => $val) {
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$query = sprintf("create index %s on %s (%s);", $key, $table_name, '['.implode('],[',$val).']');
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$this->_query($query);
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}
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}
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return true;
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}
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}
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/**
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* @brief Handle the insertAct
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**/
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// TODO Lookup _filterNumber against sql injection - see if it is still needed and how to integrate
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function _executeInsertAct($queryObject) {
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$query = $this->getInsertSql($queryObject, false);
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$this->param = $queryObject->getArguments();
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return $this->_query($query);
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}
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/**
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* @brief Handle updateAct
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**/
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function _executeUpdateAct($queryObject) {
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$query = $this->getUpdateSql($queryObject, false);
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$this->param = $queryObject->getArguments();
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return $this->_query($query);
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}
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/**
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* @brief Handle deleteAct
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**/
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function _executeDeleteAct($queryObject) {
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$query = $this->getDeleteSql($queryObject, false);
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$this->param = $queryObject->getArguments();
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return $this->_query($query);
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}
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function getSelectSql($query){
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$with_value = false;
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//$limitOffset = $query->getLimit()->getOffset();
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//if($limitOffset)
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// TODO Implement Limit with offset with subquery
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$limit = '';$limitCount = '';
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if($query->getLimit())
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$limitCount = $query->getLimit()->getLimit();
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if($limitCount != '') $limit = 'SELECT TOP ' . $limitCount;
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$select = $query->getSelectString($with_values);
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if($select == '') return new Object(-1, "Invalid query");
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if($limit != '')
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$select = $limit.' '.$select;
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else
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$select = 'SELECT ' .$select;
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$from = $query->getFromString($with_values);
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if($from == '') return new Object(-1, "Invalid query");
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$from = ' FROM '.$from;
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$where = $query->getWhereString($with_values);
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if($where != '') $where = ' WHERE ' . $where;
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$groupBy = $query->getGroupByString();
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if($groupBy != '') $groupBy = ' GROUP BY ' . $groupBy;
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$orderBy = $query->getOrderByString();
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if($orderBy != '') $orderBy = ' ORDER BY ' . $orderBy;
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return $select . ' ' . $from . ' ' . $where . ' ' . $groupBy . ' ' . $orderBy;
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}
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/**
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* @brief Handle selectAct
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*
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* In order to get a list of pages easily when selecting \n
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* it supports a method as navigation
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**/
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function _executeSelectAct($queryObject) {
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$query = $this->getSelectSql($queryObject);
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if(strpos($query, "substr")) $query = str_replace ("substr", "substring", $query);
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// TODO Decide if we continue to pass parameters like this
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$this->param = $queryObject->getArguments();
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$query .= (__DEBUG_QUERY__&1 && $output->query_id)?sprintf(' '.$this->comment_syntax,$this->query_id):'';
|
|
$result = $this->_query($query);
|
|
|
|
if ($this->isError ()) return $this->queryError($queryObject);
|
|
else return $this->queryPageLimit($queryObject, $result);
|
|
}
|
|
|
|
function getParser(){
|
|
return new DBParser("[", "]", $this->prefix);
|
|
}
|
|
|
|
function queryError($queryObject){
|
|
if ($queryObject->getLimit() && $queryObject->getLimit()->isPageHandler()){
|
|
$buff = new Object ();
|
|
$buff->total_count = 0;
|
|
$buff->total_page = 0;
|
|
$buff->page = 1;
|
|
$buff->data = array ();
|
|
$buff->page_navigation = new PageHandler (/*$total_count*/0, /*$total_page*/1, /*$page*/1, /*$page_count*/10);//default page handler values
|
|
return $buff;
|
|
}else
|
|
return;
|
|
}
|
|
|
|
function queryPageLimit($queryObject, $result){
|
|
if ($queryObject->getLimit() && $queryObject->getLimit()->isPageHandler()) {
|
|
// Total count
|
|
$count_query = sprintf('select count(*) as "count" %s %s', 'FROM ' . $queryObject->getFromString(), ($queryObject->getWhereString() === '' ? '' : ' WHERE '. $queryObject->getWhereString()));
|
|
if ($queryObject->getGroupByString() != '') {
|
|
$count_query = sprintf('select count(*) as "count" from (%s) xet', $count_query);
|
|
}
|
|
|
|
$count_query .= (__DEBUG_QUERY__&1 && $output->query_id)?sprintf (' '.$this->comment_syntax, $this->query_id):'';
|
|
$result_count = $this->_query($count_query);
|
|
$count_output = $this->_fetch($result_count);
|
|
$total_count = (int)$count_output->count;
|
|
|
|
// Total pages
|
|
if ($total_count) {
|
|
$total_page = (int) (($total_count - 1) / $queryObject->getLimit()->list_count) + 1;
|
|
} else $total_page = 1;
|
|
|
|
$virtual_no = $total_count - ($queryObject->getLimit()->page - 1) * $queryObject->getLimit()->list_count;
|
|
$data = $this->_fetch($result, $virtual_no);
|
|
|
|
$buff = new Object ();
|
|
$buff->total_count = $total_count;
|
|
$buff->total_page = $total_page;
|
|
$buff->page = $queryObject->getLimit()->page->getValue();
|
|
$buff->data = $data;
|
|
$buff->page_navigation = new PageHandler($total_count, $total_page, $queryObject->getLimit()->page, $queryObject->getLimit()->page_count);
|
|
}else{
|
|
$data = $this->_fetch($result);
|
|
$buff = new Object ();
|
|
$buff->data = $data;
|
|
}
|
|
return $buff;
|
|
}
|
|
|
|
}
|
|
|
|
return new DBMssql;
|
|
?>
|