mirror of
https://github.com/Lastorder-DC/rhymix.git
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4d272994dd
git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0_english@8278 201d5d3c-b55e-5fd7-737f-ddc643e51545
761 lines
27 KiB
PHP
761 lines
27 KiB
PHP
<?php
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/**
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* @class DBMysql
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* @author NHN (developers@xpressengine.com)
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* @brief Class to use MySQL DBMS
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* @version 0.1
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*
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* mysql handling class
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**/
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class DBMysql extends DB {
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/**
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* @brief Connection information for Mysql DB
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**/
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var $hostname = '127.0.0.1'; ///< hostname
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var $userid = NULL; ///< user id
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var $password = NULL; ///< password
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var $database = NULL; ///< database
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var $prefix = 'xe'; // / <prefix of a tablename (One or more XEs can be installed in a single DB)
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var $comment_syntax = '/* %s */';
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/**
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* @brief Column type used in MySQL
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*
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* Becasue a common column type in schema/query xml is used for colum_type,
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* it should be replaced properly for each DBMS
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**/
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var $column_type = array(
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'bignumber' => 'bigint',
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'number' => 'bigint',
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'varchar' => 'varchar',
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'char' => 'char',
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'text' => 'text',
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'bigtext' => 'longtext',
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'date' => 'varchar(14)',
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'float' => 'float',
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);
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/**
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* @brief constructor
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**/
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function DBMysql() {
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$this->_setDBInfo();
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$this->_connect();
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}
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function create() {
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return new DBMysql;
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}
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/**
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* @brief Return if it is installable
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**/
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function isSupported() {
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if(!function_exists('mysql_connect')) return false;
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return true;
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}
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/**
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* @brief DB settings and connect/close
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**/
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function _setDBInfo() {
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$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)!='_') $this->prefix .= '_';
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}
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/**
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* @brief DB Connection
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**/
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function _connect() {
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// Ignore if no DB information exists
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if(!$this->hostname || !$this->userid || !$this->password || !$this->database) return;
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if(strpos($this->hostname, ':')===false && $this->port) $this->hostname .= ':'.$this->port;
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// Attempt to connect
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$this->fd = @mysql_connect($this->hostname, $this->userid, $this->password);
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if(mysql_error()) {
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$this->setError(mysql_errno(), mysql_error());
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return;
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}
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// Error appears if the version is lower than 4.1
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if(mysql_get_server_info($this->fd)<"4.1") {
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$this->setError(-1, "XE cannot be installed under the version of mysql 4.1. Current mysql version is ".mysql_get_server_info());
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return;
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}
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// select db
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@mysql_select_db($this->database, $this->fd);
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if(mysql_error()) {
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$this->setError(mysql_errno(), mysql_error());
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return;
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}
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// Check connections
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$this->is_connected = true;
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$this->password = md5($this->password);
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// Set utf8 if a database is MySQL
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$this->_query("set names 'utf8'");
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}
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/**
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* @brief DB disconnection
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**/
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function close() {
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if(!$this->isConnected()) return;
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@mysql_close($this->fd);
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}
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/**
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* @brief Add quotes on the string variables in a query
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**/
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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)) $string = @mysql_escape_string($string);
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return $string;
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}
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/**
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* @brief Begin transaction
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**/
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function begin() {
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}
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/**
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* @brief Rollback
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**/
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function rollback() {
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}
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/**
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* @brief Commits
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**/
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function commit() {
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}
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/**
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* @brief : Run a query and fetch the result
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*
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* query: run a query and return the result \n
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* fetch: NULL if no value is returned \n
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* array object if rows are returned \n
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* object if a row is returned \n
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* return\n
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**/
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function _query($query) {
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if(!$this->isConnected()) return;
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// Notify to start a query execution
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$this->actStart($query);
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// Run the query statement
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$result = @mysql_query($query, $this->fd);
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// Error Check
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if(mysql_error($this->fd)) $this->setError(mysql_errno($this->fd), mysql_error($this->fd));
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// Notify to complete a query execution
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$this->actFinish();
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// Return result
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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) {
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if(!$this->isConnected() || $this->isError() || !$result) return;
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while($tmp = $this->db_fetch_object($result)) {
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$output[] = $tmp;
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}
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if(count($output)==1) return $output[0];
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return $output;
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}
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/**
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* @brief Return sequence value incremented by 1(auto_increment is used in sequence table only in MySQL)
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**/
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function getNextSequence() {
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$query = sprintf("insert into `%ssequence` (seq) values ('0')", $this->prefix);
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$this->_query($query);
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$sequence = $this->db_insert_id();
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if($sequence % 10000 == 0) {
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$query = sprintf("delete from `%ssequence` where seq < %d", $this->prefix, $sequence);
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$this->_query($query);
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}
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return $sequence;
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}
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/**
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* @brief Function to obtain mysql old password(mysql only)
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**/
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function isValidOldPassword($password, $saved_password) {
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$query = sprintf("select password('%s') as password, old_password('%s') as old_password", $this->addQuotes($password), $this->addQuotes($password));
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$result = $this->_query($query);
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$tmp = $this->_fetch($result);
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if($tmp->password == $saved_password || $tmp->old_password == $saved_password) return true;
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return false;
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}
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/**
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* @brief Return if a table already exists
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**/
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function isTableExists($target_name) {
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$query = sprintf("show tables like '%s%s'", $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 = '', $notnull=false) {
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$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, $column_name) {
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$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("show fields from `%s%s`", $this->prefix, $table_name);
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$result = $this->_query($query);
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if($this->isError()) return;
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$output = $this->_fetch($result);
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if($output) {
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$column_name = strtolower($column_name);
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foreach($output as $key => $val) {
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$name = strtolower($val->Field);
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if($column_name == $name) return true;
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}
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}
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return false;
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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, $is_unique = false) {
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if(!is_array($target_columns)) $target_columns = array($target_columns);
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$query = sprintf("alter table `%s%s` add %s index `%s` (%s);", $this->prefix, $table_name, $is_unique?'unique':'', $index_name, implode(',',$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, $is_unique = false) {
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$query = sprintf("alter table `%s%s` drop index `%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("show indexes from %s%s where key_name = '%s' ", $this->prefix, $table_name, $index_name);
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$query = sprintf("show indexes from `%s%s`", $this->prefix, $table_name);
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$result = $this->_query($query);
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if($this->isError()) return;
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$output = $this->_fetch($result);
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if(!$output) return;
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if(!is_array($output)) $output = array($output);
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for($i=0;$i<count($output);$i++) {
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if($output[$i]->Key_name == $index_name) return true;
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}
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return false;
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}
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/**
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* @brief Create a table by using xml file
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**/
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function createTableByXml($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($table_name)) return;
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$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',
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$name,
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$this->column_type[$type],
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$size?'('.$size.')':'',
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isset($default)?"default '".$default."'":'',
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$notnull?'not null':'',
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$auto_increment?'auto_increment':''
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);
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if($primary_key) $primary_list[] = $name;
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else if($unique) $unique_list[$unique][] = $name;
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else if($index) $index_list[$index][] = $name;
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}
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if(count($primary_list)) {
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$column_schema[] = sprintf("primary key (%s)", '`'.implode($primary_list,'`,`').'`');
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}
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if(count($unique_list)) {
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foreach($unique_list as $key => $val) {
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$column_schema[] = sprintf("unique %s (%s)", $key, '`'.implode($val,'`,`').'`');
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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 => $val) {
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$column_schema[] = sprintf("index %s (%s)", $key, '`'.implode($val,'`,`').'`');
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}
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}
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$schema = sprintf('create table `%s` (%s%s) %s;', $this->addQuotes($table_name), "\n", implode($column_schema,",\n"), "ENGINE = MYISAM CHARACTER SET utf8 COLLATE utf8_general_ci");
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$output = $this->_query($schema);
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if(!$output) return false;
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}
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/**
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* @brief Return conditional clause
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**/
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function getCondition($output) {
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if(!$output->conditions) return;
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$condition = $this->_getCondition($output->conditions,$output->column_type);
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if($condition) $condition = ' where '.$condition;
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return $condition;
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}
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function getLeftCondition($conditions,$column_type){
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return $this->_getCondition($conditions,$column_type);
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}
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function _getCondition($conditions,$column_type) {
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$condition = '';
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foreach($conditions as $val) {
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$sub_condition = '';
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foreach($val['condition'] as $v) {
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if(!isset($v['value'])) continue;
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if($v['value'] === '') continue;
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if(!in_array(gettype($v['value']), array('string', 'integer', 'double', 'array'))) continue;
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$name = $v['column'];
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$operation = $v['operation'];
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$value = $v['value'];
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$type = $this->getColumnType($column_type,$name);
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$pipe = $v['pipe'];
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$value = $this->getConditionValue($name, $value, $operation, $type, $column_type);
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if(!$value) $value = $v['value'];
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$str = $this->getConditionPart($name, $value, $operation);
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if($sub_condition) $sub_condition .= ' '.$pipe.' ';
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$sub_condition .= $str;
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}
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if($sub_condition) {
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if($condition && $val['pipe']) $condition .= ' '.$val['pipe'].' ';
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$condition .= '('.$sub_condition.')';
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}
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}
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return $condition;
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}
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/**
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* @brief Handle the insertAct
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**/
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function _executeInsertAct($output) {
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// List tables
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foreach($output->tables as $key => $val) {
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$table_list[] = '`'.$this->prefix.$val.'`';
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}
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// List columns
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foreach($output->columns as $key => $val) {
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$name = $val['name'];
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$value = $val['value'];
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if($output->column_type[$name]!='number') {
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if(!is_null($value)){
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$value = "'" . $this->addQuotes($value) ."'";
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}else{
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if($val['notnull']=='notnull') {
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$value = "''";
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} else {
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//$value = 'null';
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$value = "''";
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}
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}
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} elseif(!$value || is_numeric($value)) $value = (int)$value;
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$column_list[] = '`'.$name.'`';
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$value_list[] = $value;
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}
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$query = sprintf("insert into %s (%s) values (%s);", implode(',',$table_list), implode(',',$column_list), implode(',', $value_list));
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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($output) {
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// List tables
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foreach($output->tables as $key => $val) {
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$table_list[] = '`'.$this->prefix.$val.'` as '.$key;
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}
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// List columns
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foreach($output->columns as $key => $val) {
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if(!isset($val['value'])) continue;
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$name = $val['name'];
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$value = $val['value'];
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if(strpos($name,'.')!==false&&strpos($value,'.')!==false) $column_list[] = $name.' = '.$value;
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else {
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if($output->column_type[$name]!='number') $value = "'".$this->addQuotes($value)."'";
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elseif(!$value || is_numeric($value)) $value = (int)$value;
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$column_list[] = sprintf("`%s` = %s", $name, $value);
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}
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}
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// List the conditional clause
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$condition = $this->getCondition($output);
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$query = sprintf("update %s set %s %s", implode(',',$table_list), implode(',',$column_list), $condition);
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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($output) {
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// List tables
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foreach($output->tables as $key => $val) {
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$table_list[] = '`'.$this->prefix.$val.'`';
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}
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// List the conditional clause
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$condition = $this->getCondition($output);
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$query = sprintf("delete from %s %s", implode(',',$table_list), $condition);
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return $this->_query($query);
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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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**/
|
|
function _executeSelectAct($output) {
|
|
// List tables
|
|
$table_list = array();
|
|
foreach($output->tables as $key => $val) {
|
|
$table_list[] = '`'.$this->prefix.$val.'` as '.$key;
|
|
}
|
|
|
|
$left_join = array();
|
|
// why???
|
|
$left_tables= (array)$output->left_tables;
|
|
|
|
foreach($left_tables as $key => $val) {
|
|
$condition = $this->_getCondition($output->left_conditions[$key],$output->column_type);
|
|
if($condition){
|
|
$left_join[] = $val . ' `'.$this->prefix.$output->_tables[$key].'` as '.$key . ' on (' . $condition . ')';
|
|
}
|
|
}
|
|
|
|
$click_count = array();
|
|
if(!$output->columns){
|
|
$output->columns = array(array('name'=>'*'));
|
|
}
|
|
|
|
$column_list = array();
|
|
foreach($output->columns as $key => $val)
|
|
{
|
|
$name = $val['name'];
|
|
$alias = $val['alias'];
|
|
if($val['click_count']) $click_count[] = $val['name'];
|
|
|
|
if(substr($name,-1) == '*')
|
|
{
|
|
$column_list[] = $name;
|
|
}
|
|
else if(strpos($name,'.')===false && strpos($name,'(')===false)
|
|
{
|
|
if($alias)
|
|
{
|
|
$col = sprintf('`%s` as `%s`', $name, $alias);
|
|
$column_list[$alias] = $col;
|
|
}
|
|
else
|
|
{
|
|
$column_list[] = sprintf('`%s`',$name);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if($alias)
|
|
{
|
|
$col = sprintf('%s as `%s`', $name, $alias);
|
|
$column_list[$alias] = $col;
|
|
}
|
|
else
|
|
{
|
|
$column_list[] = sprintf('%s',$name);
|
|
}
|
|
}
|
|
}
|
|
|
|
$columns = implode(',',$column_list);
|
|
$output->column_list = $column_list;
|
|
$condition = $this->getCondition($output);
|
|
|
|
if($output->list_count && $output->page) return $this->_getNavigationData($table_list, $columns, $left_join, $condition, $output);
|
|
// Add a condition to use an index when sorting in order by list_order, update_order
|
|
if($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 ', $col);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
if(count($output->groups))
|
|
{
|
|
$groupby_query = sprintf(' group by %s', implode(',',$output->groups));
|
|
|
|
if(count($output->arg_columns))
|
|
{
|
|
foreach($output->groups as $group)
|
|
{
|
|
if($column_list[$group]) $output->arg_columns[] = $column_list[$group];
|
|
}
|
|
}
|
|
}
|
|
|
|
if($output->order) {
|
|
foreach($output->order as $key => $val) {
|
|
$index_list[] = sprintf('%s %s', $val[0], $val[1]);
|
|
if(count($output->arg_columns) && $column_list[$val[0]]) $output->arg_columns[] = $column_list[$val[0]];
|
|
}
|
|
if(count($index_list)) $orderby_query .= ' order by '.implode(',',$index_list);
|
|
}
|
|
|
|
if(count($output->arg_columns))
|
|
{
|
|
$columns = array();
|
|
foreach($output->arg_columns as $col){
|
|
if(strpos($col,'`')===false && strpos($col,' ')==false) $columns[] = '`'.$col.'`';
|
|
else $columns[] = $col;
|
|
}
|
|
|
|
$columns = join(',',$columns);
|
|
}
|
|
|
|
$query = sprintf("select %s from %s %s %s %s", $columns, implode(',',$table_list),implode(' ',$left_join), $condition, $groupby_query.$orderby_query);
|
|
|
|
// Apply when using list_count
|
|
if($output->list_count['value']) $query = sprintf('%s limit %d', $query, $output->list_count['value']);
|
|
|
|
$query .= (__DEBUG_QUERY__&1 && $output->query_id)?sprintf(' '.$this->comment_syntax,$this->query_id):'';
|
|
|
|
$result = $this->_query($query);
|
|
if($this->isError()) return;
|
|
if(count($click_count) && count($output->conditions)){
|
|
$_query = '';
|
|
foreach($click_count as $k => $c) $_query .= sprintf(',%s=%s+1 ',$c,$c);
|
|
$_query = sprintf('update %s set %s %s',implode(',',$table_list), substr($_query,1), $condition);
|
|
$this->_query($_query);
|
|
}
|
|
|
|
$data = $this->_fetch($result);
|
|
|
|
$buff = new Object();
|
|
$buff->data = $data;
|
|
|
|
return $buff;
|
|
}
|
|
|
|
/**
|
|
* @brief Paging is handled if navigation information exists in the query xml
|
|
*
|
|
* It is quite convenient although its structure is not good at all .. -_-;
|
|
**/
|
|
function _getNavigationData($table_list, $columns, $left_join, $condition, $output) {
|
|
require_once(_XE_PATH_.'classes/page/PageHandler.class.php');
|
|
|
|
$column_list = $output->column_list;
|
|
|
|
// Get a total count
|
|
$count_condition = count($output->groups) ? sprintf('%s group by %s', $condition, implode(', ', $output->groups)) : $condition;
|
|
$count_query = sprintf("select count(*) as count from %s %s %s", implode(', ', $table_list), implode(' ', $left_join), $count_condition);
|
|
if (count($output->groups)) $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 . ' count(*)'):'';
|
|
$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) $page = 1;
|
|
// Get a total page
|
|
if($total_count) $total_page = (int)( ($total_count-1) / $list_count) + 1;
|
|
else $total_page = 1;
|
|
// Check Page variables
|
|
if($page > $total_page) $page = $total_page;
|
|
$start_count = ($page-1)*$list_count;
|
|
// Add a condition to use an index when sorting in order by list_order, update_order
|
|
if($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 ', $col);
|
|
}
|
|
}
|
|
}
|
|
|
|
if(count($output->groups)){
|
|
$groupby_query = sprintf(' group by %s', implode(',',$output->groups));
|
|
|
|
if(count($output->arg_columns))
|
|
{
|
|
foreach($output->groups as $group)
|
|
{
|
|
if($column_list[$group]) $output->arg_columns[] = $column_list[$group];
|
|
}
|
|
}
|
|
}
|
|
|
|
if(count($output->order)) {
|
|
foreach($output->order as $key => $val) {
|
|
$index_list[] = sprintf('%s %s', $val[0], $val[1]);
|
|
if(count($output->arg_columns) && $column_list[$val[0]]) $output->arg_columns[] = $column_list[$val[0]];
|
|
}
|
|
if(count($index_list)) $orderby_query = ' order by '.implode(',',$index_list);
|
|
}
|
|
|
|
if(count($output->arg_columns))
|
|
{
|
|
$columns = array();
|
|
foreach($output->arg_columns as $col){
|
|
if(strpos($col,'`')===false && strpos($col,' ')==false) $columns[] = '`'.$col.'`';
|
|
else $columns[] = $col;
|
|
}
|
|
|
|
$columns = join(',',$columns);
|
|
}
|
|
|
|
$query = sprintf("select %s from %s %s %s %s", $columns, implode(',',$table_list), implode(' ',$left_join), $condition, $groupby_query.$orderby_query);
|
|
$query = sprintf('%s limit %d, %d', $query, $start_count, $list_count);
|
|
$query .= (__DEBUG_QUERY__&1 && $output->query_id)?sprintf(' '.$this->comment_syntax,$this->query_id):'';
|
|
|
|
$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;
|
|
$data = array();
|
|
while($tmp = $this->db_fetch_object($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 $buff;
|
|
}
|
|
|
|
function db_insert_id()
|
|
{
|
|
return mysql_insert_id($this->fd);
|
|
}
|
|
|
|
function db_fetch_object(&$result)
|
|
{
|
|
return mysql_fetch_object($result);
|
|
}
|
|
}
|
|
|
|
return new DBMysql;
|
|
?>
|