2012-10-01 02:44:34 +04:00
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<?php
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/**
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* Very stable interface for MySQL - object-oriented at last :)
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* Select builder is inspired by MediaWiki's one.
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2013-03-05 19:31:23 +04:00
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* Also usable for querying SphinxQL.
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2016-05-29 17:36:52 +03:00
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* Version: 2016-05-28
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* (c) Vitaliy Filippov, 2012-2016
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2012-10-01 02:44:34 +04:00
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*/
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2012-10-01 02:44:37 +04:00
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if (!defined('MS_HASH'))
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{
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define('MS_HASH', 0);
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define('MS_LIST', 1);
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define('MS_ROW', 2);
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define('MS_ONE', 2);
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define('MS_COL', 4);
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define('MS_VALUE', 6);
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define('MS_RESULT', 8);
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}
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2012-10-01 02:44:34 +04:00
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2016-05-29 17:36:52 +03:00
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if (!class_exists('DatabaseException'))
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{
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class DatabaseException extends Exception {}
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}
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class DatabaseMysqlException extends DatabaseException
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2015-05-12 18:31:49 +03:00
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{
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function isDuplicateKey()
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{
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return $this->getCode() == 1062;
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}
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}
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2012-10-10 02:20:40 +04:00
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2013-02-18 17:54:46 +04:00
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if (!interface_exists('Database'))
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2012-10-01 02:44:34 +04:00
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{
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2013-02-18 17:54:46 +04:00
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interface Database {}
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}
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class DatabaseMysql implements Database
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{
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var $host, $port, $socket, $username, $password, $dbname;
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2012-10-01 02:44:37 +04:00
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2012-10-01 02:44:34 +04:00
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var $tableNames = array();
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2016-05-29 17:36:52 +03:00
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var $init = array();
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2015-05-12 18:31:49 +03:00
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var $queryLogFile, $loggedQueries = '';
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2012-10-10 02:20:40 +04:00
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var $reconnect = true;
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2013-03-30 00:57:58 +04:00
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var $autoBegin;
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2013-03-05 19:31:23 +04:00
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var $ondestroy = 'commit';
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2012-10-10 02:20:40 +04:00
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var $queryCount = 0;
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var $link;
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2013-05-08 13:21:50 +04:00
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var $transactions = array();
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2012-10-01 02:44:34 +04:00
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2012-10-01 02:44:37 +04:00
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/**
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* Creates a MySQL connection object.
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*
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2013-02-18 17:54:46 +04:00
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* @param array $options Possible options:
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* host Host name or IP address to connect to [localhost]
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* socket Path to UNIX socket to connect to [/var/run/mysqld/mysqld.sock]
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* port TCP port to connect to [3306]
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* dbname DB name to use
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* username Username
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* password Password
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2013-03-05 19:31:23 +04:00
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* tableNames Table name mappings (virtual => real)
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2013-02-18 17:54:46 +04:00
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* queryLogFile Path to query log file
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2013-03-05 19:31:23 +04:00
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* reconnect Whether to reconnect on idle timeout [true]
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2016-05-29 17:36:52 +03:00
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* autoBegin Whether to automatically begin a transaction on first query [false]
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2013-03-05 19:31:23 +04:00
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* ondestroy commit/rollback/none during destruction [commit]
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2016-05-29 17:36:52 +03:00
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* init Initialisation queries (array)
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2012-10-01 02:44:37 +04:00
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*/
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2013-02-18 17:54:46 +04:00
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function __construct($options)
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2012-10-01 02:44:34 +04:00
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{
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2013-02-18 17:54:46 +04:00
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$defOpts = array(
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'host' => 'localhost',
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'port' => 3306,
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'socket' => '/var/run/mysqld/mysqld.sock',
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'dbname' => '',
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'username' => '',
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'password' => '',
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'reconnect' => true,
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2013-03-05 19:31:23 +04:00
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'tableNames' => array(),
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2013-02-18 17:54:46 +04:00
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'queryLogFile' => '',
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2013-03-30 00:57:58 +04:00
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'autoBegin' => false,
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2013-03-05 19:31:23 +04:00
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'ondestroy' => 'commit',
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2016-05-29 17:36:52 +03:00
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'init' => array(),
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2013-02-18 17:54:46 +04:00
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);
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$options += $defOpts;
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if ($options['socket'])
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2012-10-01 02:44:34 +04:00
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{
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2013-02-18 17:54:46 +04:00
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$options['host'] = 'localhost';
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2012-10-01 02:44:34 +04:00
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}
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2013-02-18 17:54:46 +04:00
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foreach ($defOpts as $k => $v)
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2012-10-01 02:44:34 +04:00
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{
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2013-02-18 17:54:46 +04:00
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$this->$k = $options[$k];
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2012-10-01 02:44:37 +04:00
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}
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2016-05-29 17:36:52 +03:00
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if ($this->username || $this->dbname) // skip for Sphinx
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{
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// READ COMMITTED is more consistent for average usage
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$this->init[] = 'SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED';
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}
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2012-10-01 02:44:37 +04:00
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}
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2013-03-05 19:31:23 +04:00
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function __destruct()
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{
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$o = $this->ondestroy;
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if (($o === 'commit' || $o === 'rollback') && $this->transactions)
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{
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$this->transactions = array(false);
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$this->$o();
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}
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2015-05-12 18:31:49 +03:00
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if ($this->queryLogFile)
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{
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file_put_contents($this->queryLogFile, $this->loggedQueries, FILE_APPEND);
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}
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2013-03-05 19:31:23 +04:00
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}
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2012-10-01 02:44:37 +04:00
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function connect()
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{
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if ($this->socket !== NULL)
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$this->link = new mysqli($this->host, $this->username, $this->password, $this->dbname, $this->port, $this->socket);
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elseif ($this->port !== NULL)
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$this->link = new mysqli($this->host, $this->username, $this->password, $this->dbname, $this->port);
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2012-10-01 02:44:34 +04:00
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else
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2012-10-01 02:44:37 +04:00
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$this->link = new mysqli($this->host, $this->username, $this->password, $this->dbname);
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2013-02-18 17:54:46 +04:00
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$errno = $this->link->connect_errno;
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$error = $this->link->connect_error;
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if ($errno)
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{
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$this->link = NULL;
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2016-05-29 17:36:52 +03:00
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throw new DatabaseMysqlException($error, $errno);
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2013-02-18 17:54:46 +04:00
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}
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else
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{
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2013-11-16 02:23:05 +04:00
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$this->transactions = array();
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2013-02-18 17:54:46 +04:00
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$this->link->set_charset('utf8');
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2016-05-29 17:36:52 +03:00
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foreach ($this->init as $q)
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$this->link->query($q);
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2013-02-18 17:54:46 +04:00
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}
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2012-10-01 02:44:34 +04:00
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}
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function getDBName()
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{
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2012-10-01 02:44:37 +04:00
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return $this->dbname;
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2012-10-01 02:44:34 +04:00
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}
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function quoteId($name)
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{
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return "`".str_replace("`", "``", $name)."`";
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}
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2013-03-05 19:31:23 +04:00
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function quoteInto($str, $params)
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{
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$i = 0;
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$r = '';
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2013-03-30 00:57:58 +04:00
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while (($p = strpos($str, '?')) !== false)
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2013-03-05 19:31:23 +04:00
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{
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2013-03-30 00:57:58 +04:00
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$r .= substr($str, 0, $p) . $this->quote($params[$i++]);
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$str = substr($str, $p+1);
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2013-03-05 19:31:23 +04:00
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}
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2013-03-30 00:57:58 +04:00
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return $r.$str;
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2013-03-05 19:31:23 +04:00
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}
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2012-10-01 02:44:34 +04:00
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function quote($value)
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{
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if ($value === NULL)
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return "NULL";
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2012-10-10 02:20:40 +04:00
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if (!$this->link)
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$this->connect();
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2012-10-01 02:44:37 +04:00
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return "'" . $this->link->real_escape_string($value) . "'";
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2012-10-01 02:44:34 +04:00
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}
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function query($sql, $fetchMode = MYSQLI_STORE_RESULT)
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{
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2013-03-30 00:57:58 +04:00
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if (!$this->link)
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$this->connect();
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2016-05-29 17:36:52 +03:00
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if ($this->autoBegin && !$this->transactions)
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$this->begin();
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2012-10-01 02:44:34 +04:00
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$this->queryCount++;
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if ($this->queryLogFile)
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{
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2015-05-13 14:00:14 +03:00
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$begin = explode(' ', microtime(), 2);
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2012-10-01 02:44:34 +04:00
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}
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2012-10-10 02:20:40 +04:00
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$r = $this->link->query($sql, $fetchMode);
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2016-05-29 17:36:52 +03:00
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if (!$r)
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$r = $this->check_reconnect('query', [ $sql, $fetchMode ]);
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2015-05-13 14:00:14 +03:00
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if ($this->queryLogFile)
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{
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$end = explode(' ', microtime(), 2);
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$this->loggedQueries .= date("[Y-m-d H:i:s.").substr($end[0], 2, 6)."] [".
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sprintf("%.05fs", $end[1]-$begin[1]+$end[0]-$begin[0])."] $sql\n";
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}
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2016-05-29 17:36:52 +03:00
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return $r;
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}
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protected function check_reconnect($f, $args)
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{
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$r = false;
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if ($this->link->errno == 2006 && $this->reconnect && (!$this->transactions || $args[0] == "BEGIN"))
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2012-10-10 02:20:40 +04:00
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{
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2016-05-29 17:36:52 +03:00
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// "MySQL server has gone away"
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$this->connect();
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$r = call_user_func_array([ $this->link, $f ], $args);
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if (!$r && $this->link->errno == 2006)
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$this->link = false;
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2013-03-05 19:31:23 +04:00
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if (!$r)
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2016-05-29 17:36:52 +03:00
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$st = " (reconnect failed)";
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}
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elseif ($this->link->errno != 2006)
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$st = "";
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elseif (!$this->reconnect)
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$st = " (reconnect disabled";
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elseif ($this->transactions)
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$st = " (not reconnecting because of active transactions)";
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if (!$r)
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throw new DatabaseMysqlException('#'.$this->link->errno.': '.$this->link->error . $st . "\nQuery: ".$args[0], $this->link->errno);
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2012-10-10 02:20:40 +04:00
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return $r;
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}
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2013-03-05 19:31:23 +04:00
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function multi_select(array $queries, $format = 0)
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{
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2013-03-30 00:57:58 +04:00
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if (!$this->link)
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$this->connect();
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2016-05-29 17:36:52 +03:00
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if ($this->autoBegin && !$this->transactions)
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$this->begin();
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2013-03-05 19:31:23 +04:00
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$this->queryCount += count($queries);
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$log = '';
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foreach ($queries as &$sql)
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{
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if (!is_string($sql))
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{
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$sql = $this->select_builder($sql[0], $sql[1], $sql[2], @$sql[3]);
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}
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$log .= date("[Y-m-d H:i:s] ").$sql."\n";
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}
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unset($sql);
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if ($this->queryLogFile)
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{
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file_put_contents($this->queryLogFile, $log, FILE_APPEND);
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}
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$sql = implode('; ', $queries);
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$r = $this->link->multi_query($sql);
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if (!$r)
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2016-05-29 17:36:52 +03:00
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$this->check_reconnect('multi_query', [ $sql ]);
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2013-03-05 19:31:23 +04:00
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$results = array();
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2013-03-30 00:57:58 +04:00
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$i = 0;
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2013-03-05 19:31:23 +04:00
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foreach ($queries as $k => $q)
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{
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2013-03-30 00:57:58 +04:00
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if ($i++)
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{
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$this->link->next_result();
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}
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$r = $this->link->store_result();
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2013-03-05 19:31:23 +04:00
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$results[$k] = $this->fetch_all($r, $format);
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}
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return $results;
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}
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2012-10-10 02:20:40 +04:00
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/**
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* Starts a transaction, supports nested calls and savepoints.
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* @param boolean $savepoint Creates savepoints only this parameter is true.
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*/
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function begin($savepoint = false)
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{
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2016-05-29 17:36:52 +03:00
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$n = count($this->transactions)+1;
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$this->transactions[] = $savepoint ? "sp$n" : false;
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2012-10-10 02:20:40 +04:00
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if ($n == 1)
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return $this->query("BEGIN");
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elseif ($savepoint)
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return $this->query("SAVEPOINT sp$n");
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return true;
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}
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/**
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* Commits transaction or releases last savepoint.
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* If there is no last savepoint, just returns true.
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*/
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function commit()
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{
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2016-05-29 17:36:52 +03:00
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$r = true;
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2012-10-10 02:20:40 +04:00
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$savepoint = array_pop($this->transactions);
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if (!$this->transactions)
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2016-05-29 17:36:52 +03:00
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$r = $this->query("COMMIT");
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elseif ($savepoint)
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$r = $this->query("RELEASE SAVEPOINT $savepoint");
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return $r;
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}
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/**
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* Commits transaction
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*/
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function commitAll()
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{
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$r = true;
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if ($this->transactions)
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2012-10-10 02:20:40 +04:00
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{
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2016-05-29 17:36:52 +03:00
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$r = $this->query("COMMIT");
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$this->transactions = [];
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2012-10-10 02:20:40 +04:00
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}
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2016-05-29 17:36:52 +03:00
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return $r;
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}
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/**
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* Rollbacks transaction
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*/
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function rollbackAll()
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{
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$r = true;
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if ($this->transactions)
|
2012-10-10 02:20:40 +04:00
|
|
|
{
|
2016-05-29 17:36:52 +03:00
|
|
|
$r = $this->query("ROLLBACK");
|
|
|
|
$this->transactions = [];
|
2012-10-10 02:20:40 +04:00
|
|
|
}
|
2016-05-29 17:36:52 +03:00
|
|
|
return $r;
|
2012-10-10 02:20:40 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Rollbacks transaction or last savepoint.
|
|
|
|
* If there is no savepoint, returns false.
|
|
|
|
*/
|
|
|
|
function rollback()
|
|
|
|
{
|
2016-05-29 17:36:52 +03:00
|
|
|
$r = false;
|
2012-10-10 02:20:40 +04:00
|
|
|
$savepoint = array_pop($this->transactions);
|
|
|
|
if (!$this->transactions)
|
2016-05-29 17:36:52 +03:00
|
|
|
$r = $this->query("ROLLBACK");
|
2012-10-10 02:20:40 +04:00
|
|
|
elseif ($savepoint)
|
2016-05-29 17:36:52 +03:00
|
|
|
$r = $this->query("ROLLBACK TO SAVEPOINT $savepoint");
|
|
|
|
return $r;
|
2012-10-10 02:20:40 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
function errno()
|
|
|
|
{
|
|
|
|
return $this->link->errno;
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
function error()
|
|
|
|
{
|
|
|
|
return $this->link->error;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Builds WHERE-part of an SQL query.
|
|
|
|
* $where can also be a string - then it's passed as-is.
|
|
|
|
*
|
|
|
|
* @param array $where Query conditions:
|
|
|
|
* array(
|
|
|
|
* 'conditional expression',
|
|
|
|
* 'field_name' => 'value',
|
|
|
|
* 'field_name' => array('one', 'of', 'values'),
|
2013-03-05 19:31:23 +04:00
|
|
|
* 'field_name < ?' => 'value',
|
|
|
|
* 'field_name < DATE_SUB(?, ?)' => array('arg1', 'arg2'),
|
2012-10-10 02:20:40 +04:00
|
|
|
* 'field1,field2' => array(array(1, 2), array(3, 4)),
|
|
|
|
* )
|
|
|
|
*/
|
2012-10-01 02:44:34 +04:00
|
|
|
function where_builder($where)
|
|
|
|
{
|
|
|
|
if (!is_array($where))
|
|
|
|
return $where;
|
|
|
|
$wh = array();
|
|
|
|
foreach ($where as $k => $v)
|
|
|
|
{
|
2013-02-18 17:54:46 +04:00
|
|
|
if (ctype_digit("$k"))
|
2013-03-05 19:31:23 +04:00
|
|
|
{
|
|
|
|
if (is_array($v))
|
|
|
|
{
|
|
|
|
$str = array_shift($v);
|
|
|
|
$wh[] = $this->quoteInto($str, $v);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
$wh[] = $v;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
elseif (($p = strrpos($k, '?')) !== false)
|
|
|
|
{
|
|
|
|
$wh[] = $this->quoteInto($k, (array)$v);
|
|
|
|
}
|
2012-10-01 02:44:34 +04:00
|
|
|
elseif (is_array($v))
|
|
|
|
{
|
|
|
|
if (!$v)
|
|
|
|
{
|
2013-11-16 02:23:05 +04:00
|
|
|
// FIXME: It seems we should return empty result in that case
|
2016-05-29 17:36:52 +03:00
|
|
|
throw new DatabaseMysqlException("Error: empty array for '$k IN (...)', don't know what to do");
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2013-04-09 19:10:48 +04:00
|
|
|
if (is_array(reset($v)))
|
2015-05-12 18:31:49 +03:00
|
|
|
{
|
|
|
|
// (a,b) IN ((1,2), (3,4)) ...
|
2012-10-01 02:44:34 +04:00
|
|
|
foreach ($v as &$l)
|
2015-05-12 18:31:49 +03:00
|
|
|
{
|
2012-10-01 02:44:34 +04:00
|
|
|
$l = "(" . implode(",", array_map(array($this, 'quote'), $l)) . ")";
|
2015-05-12 18:31:49 +03:00
|
|
|
}
|
|
|
|
$wh[] = "$k IN (" . implode(",", $v) . ")";
|
|
|
|
}
|
2012-10-01 02:44:34 +04:00
|
|
|
else
|
2015-05-12 18:31:49 +03:00
|
|
|
{
|
|
|
|
$r = '';
|
|
|
|
$null = false;
|
|
|
|
foreach ($v as $i => $l)
|
|
|
|
{
|
|
|
|
if ($l === NULL)
|
|
|
|
{
|
|
|
|
$null = true;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
$r .= $this->quote($l).',';
|
|
|
|
}
|
|
|
|
}
|
|
|
|
$r = $r !== '' ? "$k IN (" . substr($r, 0, -1) . ")" : '';
|
|
|
|
if ($null)
|
|
|
|
{
|
|
|
|
$r = $r !== '' ? "($r OR $k IS NULL)" : "$k IS NULL";
|
|
|
|
}
|
|
|
|
$wh[] = $r;
|
|
|
|
}
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
|
|
|
}
|
2013-03-05 19:31:23 +04:00
|
|
|
elseif (preg_match('/^-?\d+(\.\d+)?$/s', $v)) // int/float
|
|
|
|
$wh[] = "$k=$v";
|
2012-10-01 02:44:34 +04:00
|
|
|
elseif ($v !== NULL)
|
|
|
|
$wh[] = "$k=".$this->quote($v);
|
|
|
|
else
|
|
|
|
$wh[] = "$k IS NULL";
|
|
|
|
}
|
2013-03-30 00:57:58 +04:00
|
|
|
if (!$this->username && !$this->password && !$this->dbname)
|
2013-03-05 19:31:23 +04:00
|
|
|
{
|
|
|
|
// Sphinx supports neither brackets nor OR operator as of 2.0.6-release O_o
|
|
|
|
$where = join(' AND ', $wh);
|
|
|
|
}
|
2013-03-30 00:57:58 +04:00
|
|
|
elseif ($where)
|
2012-10-01 02:44:34 +04:00
|
|
|
$where = '(' . join(') AND (', $wh) . ')';
|
2013-03-30 00:57:58 +04:00
|
|
|
else
|
|
|
|
$where = '';
|
2012-10-01 02:44:34 +04:00
|
|
|
return $where;
|
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
/**
|
2012-10-13 18:04:56 +04:00
|
|
|
* Builds SQL query text.
|
2012-10-10 02:20:40 +04:00
|
|
|
*
|
|
|
|
* @param mixed $tables see $this->tablesBuilder()
|
|
|
|
* @param mixed $fields Field definitions - either a string or an array.
|
|
|
|
* Strings are passed to resulting query text as-is.
|
|
|
|
* Arrays have the following format:
|
|
|
|
* array('field1', 'alias2' => 'expression2', ...)
|
|
|
|
* @param mixed $where see $this->whereBuilder()
|
|
|
|
* @param array $options query options - array of:
|
|
|
|
* 'CALC_FOUND_ROWS'
|
|
|
|
* 'NO_CACHE' or 'CACHE'
|
|
|
|
* 'FOR UPDATE' or 'LOCK IN SHARE MODE'
|
|
|
|
* 'GROUP BY' => array($groupby_field1 => 'ASC', $groupby_field2 => 'DESC')
|
|
|
|
* 'ORDER BY' => array($orderby_field1 => 'ASC', $orderby_field2 => 'DESC')
|
2013-03-30 00:57:58 +04:00
|
|
|
* 'LIMIT' => array($offset, $limit) or array($limit) or just $limit
|
2012-10-10 02:20:40 +04:00
|
|
|
* 'OFFSET' => $offset, for the case when 'LIMIT' is just $limit
|
2013-03-05 19:31:23 +04:00
|
|
|
*
|
|
|
|
* Sphinx Search extensions:
|
|
|
|
* 'WITHIN GROUP ORDER BY' => array($orderby_field => 'ASC')
|
2013-07-18 01:07:19 +04:00
|
|
|
* 'FIELD_WEIGHTS' => array('field' => <weight>, ...)
|
2015-05-12 18:31:49 +03:00
|
|
|
* 'RANKER' => bm25|sph04|...|expr('...ranker expression...')
|
2012-10-10 02:20:40 +04:00
|
|
|
*/
|
2012-10-01 02:44:34 +04:00
|
|
|
function select_builder($tables, $fields, $where, $options = NULL)
|
|
|
|
{
|
|
|
|
if (!$options)
|
|
|
|
$options = array();
|
|
|
|
else
|
|
|
|
{
|
|
|
|
foreach ($options as $k => $v)
|
2013-02-18 17:54:46 +04:00
|
|
|
if (ctype_digit("$k"))
|
2012-10-01 02:44:34 +04:00
|
|
|
$options[$v] = true;
|
|
|
|
}
|
|
|
|
if (is_array($fields))
|
2012-10-10 02:20:40 +04:00
|
|
|
{
|
|
|
|
foreach ($fields as $k => $v)
|
2013-02-18 17:54:46 +04:00
|
|
|
if (!ctype_digit("$k"))
|
2012-10-10 02:20:40 +04:00
|
|
|
$fields[$k] = "$v AS ".$this->quoteId($k);
|
2012-10-01 02:44:34 +04:00
|
|
|
$fields = join(',', $fields);
|
2012-10-10 02:20:40 +04:00
|
|
|
}
|
2016-05-29 17:36:52 +03:00
|
|
|
$more = NULL;
|
|
|
|
$tables = $this->tables_builder($tables, $more);
|
|
|
|
if ($more)
|
|
|
|
$where = array_merge($where, $more);
|
2012-10-01 02:44:34 +04:00
|
|
|
$where = $this->where_builder($where);
|
|
|
|
$sql = 'SELECT ';
|
2012-10-10 02:20:40 +04:00
|
|
|
if (isset($options['CALC_FOUND_ROWS']) || isset($options['SQL_CALC_FOUND_ROWS']))
|
2012-10-01 02:44:34 +04:00
|
|
|
$sql .= 'SQL_CALC_FOUND_ROWS ';
|
2012-10-10 02:20:40 +04:00
|
|
|
if (isset($options['NO_CACHE']) || isset($options['SQL_NO_CACHE']))
|
2012-10-01 02:44:34 +04:00
|
|
|
$sql .= 'SQL_NO_CACHE ';
|
2012-10-10 02:20:40 +04:00
|
|
|
elseif (isset($options['CACHE']) || isset($options['SQL_CACHE']))
|
2012-10-01 02:44:34 +04:00
|
|
|
$sql .= 'SQL_CACHE ';
|
2013-03-30 00:57:58 +04:00
|
|
|
$sql .= "$fields FROM $tables";
|
|
|
|
if ($where)
|
|
|
|
{
|
|
|
|
$sql .= " WHERE $where";
|
|
|
|
}
|
2013-04-09 19:12:57 +04:00
|
|
|
if (!empty($options['GROUP BY']) && $options['GROUP BY'] !== '0')
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
2013-03-05 19:31:23 +04:00
|
|
|
$sql .= " GROUP BY ".$this->order_option($options['GROUP BY']);
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
2013-04-10 02:18:31 +04:00
|
|
|
if (!empty($options['ORDER BY']) && $options['ORDER BY'] !== '0')
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
2013-03-05 19:31:23 +04:00
|
|
|
$sql .= " ORDER BY ".$this->order_option($options['ORDER BY']);
|
|
|
|
}
|
2013-04-09 19:12:57 +04:00
|
|
|
if (!empty($options['WITHIN GROUP ORDER BY']) && $options['WITHIN GROUP GROUP BY'] !== '0')
|
2013-03-05 19:31:23 +04:00
|
|
|
{
|
|
|
|
// Sphinx Search extension
|
|
|
|
$sql .= " WITHIN GROUP ORDER BY ".$this->order_option($options['WITHIN GROUP ORDER BY']);
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
2012-10-10 02:20:40 +04:00
|
|
|
$sql .= $this->limit_option($options);
|
2015-05-12 18:31:49 +03:00
|
|
|
if (!empty($options['FIELD_WEIGHTS']) || !empty($options['RANKER']))
|
2013-07-18 01:07:19 +04:00
|
|
|
{
|
|
|
|
// Sphinx Search extension
|
2015-05-12 18:31:49 +03:00
|
|
|
$opt = array();
|
|
|
|
if (!empty($options['FIELD_WEIGHTS']))
|
|
|
|
{
|
|
|
|
$weights = array();
|
|
|
|
foreach ($options['FIELD_WEIGHTS'] as $f => $w)
|
|
|
|
{
|
|
|
|
$weights[] = "`$f`=$w";
|
|
|
|
}
|
|
|
|
$opt[] = "field_weights=(".implode(', ', $weights).")";
|
|
|
|
}
|
|
|
|
if (!empty($options['RANKER']))
|
2013-07-18 01:07:19 +04:00
|
|
|
{
|
2015-05-12 18:31:49 +03:00
|
|
|
$opt[] = "ranker=".$options['RANKER'];
|
2013-07-18 01:07:19 +04:00
|
|
|
}
|
2015-05-12 18:31:49 +03:00
|
|
|
$sql .= " OPTION ".implode(', ', $opt);
|
2013-07-18 01:07:19 +04:00
|
|
|
}
|
2012-10-10 02:20:40 +04:00
|
|
|
if (isset($options['FOR UPDATE']))
|
|
|
|
$sql .= ' FOR UPDATE';
|
|
|
|
elseif (isset($options['LOCK IN SHARE MODE']))
|
|
|
|
$sql .= ' LOCK IN SHARE MODE';
|
|
|
|
return $sql;
|
|
|
|
}
|
|
|
|
|
2013-03-05 19:31:23 +04:00
|
|
|
/**
|
|
|
|
* Handles ORDER BY or GROUP BY options
|
|
|
|
*/
|
|
|
|
protected function order_option($g)
|
|
|
|
{
|
|
|
|
if (is_array($g))
|
|
|
|
{
|
|
|
|
$g1 = array();
|
|
|
|
foreach ($g as $k => $v)
|
|
|
|
{
|
|
|
|
if (ctype_digit("$k"))
|
|
|
|
$g1[] = $v;
|
|
|
|
else
|
|
|
|
$g1[] = "$k $v";
|
|
|
|
}
|
|
|
|
$g = join(',', $g1);
|
|
|
|
}
|
|
|
|
return $g;
|
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
/**
|
|
|
|
* Handles a single LIMIT or LIMIT and OFFSET options.
|
|
|
|
*/
|
2013-03-05 19:31:23 +04:00
|
|
|
protected function limit_option($options)
|
2012-10-10 02:20:40 +04:00
|
|
|
{
|
|
|
|
if (isset($options['LIMIT']))
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
2012-10-10 02:20:40 +04:00
|
|
|
$g = $options['LIMIT'];
|
2012-10-01 02:44:34 +04:00
|
|
|
if (is_array($g))
|
|
|
|
$g = join(',', $g);
|
2012-10-10 02:20:40 +04:00
|
|
|
elseif ($g && isset($options['OFFSET']))
|
|
|
|
$g = "$options[OFFSET], $g";
|
2012-10-01 02:44:34 +04:00
|
|
|
if ($g)
|
2012-10-10 02:20:40 +04:00
|
|
|
return " LIMIT $g";
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
2012-10-10 02:20:40 +04:00
|
|
|
return '';
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
/**
|
|
|
|
* Builds FROM-part of an SQL query.
|
|
|
|
*
|
|
|
|
* $tables = array(
|
|
|
|
* 'table',
|
|
|
|
* 'alias' => 'table',
|
|
|
|
* 'alias' => array('INNER', 'table_name', $where_for_on_clause),
|
|
|
|
* 'alias' => array('INNER', $nested_tables),
|
|
|
|
* )
|
|
|
|
* or just a string "`table1` INNER JOIN `table2` ON ..."
|
|
|
|
* names taken into `backticks` will be transformed using $this->tableNames
|
|
|
|
*/
|
2016-05-29 17:36:52 +03:00
|
|
|
function tables_builder($tables, &$where = NULL)
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
|
|
|
if (is_array($tables))
|
|
|
|
{
|
|
|
|
$t = '';
|
|
|
|
foreach ($tables as $k => $v)
|
|
|
|
{
|
2016-05-29 17:36:52 +03:00
|
|
|
if (!is_array($v))
|
|
|
|
$v = [ 'INNER', $v, NULL ];
|
|
|
|
$join = strtolower(substr($v[0], 0, 4));
|
|
|
|
if ($join == 'righ')
|
|
|
|
$join = 'RIGHT';
|
|
|
|
elseif ($join == 'left')
|
|
|
|
$join = 'LEFT';
|
|
|
|
else /* if (!$join || $join == 'inne' || $join == 'join') */
|
|
|
|
$join = 'INNER';
|
|
|
|
if (is_array($v[1])) // nested join (left join (A join B on ...) on ...)
|
|
|
|
$table = '('.$this->tables_builder($v[1]).')';
|
|
|
|
else
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
2016-05-29 17:36:52 +03:00
|
|
|
$table = (isset($this->tableNames[$v[1]]) ? $this->quoteId($this->tableNames[$v[1]]) : $v[1]);
|
|
|
|
if (!ctype_digit("$k"))
|
|
|
|
$table .= ' ' . $k;
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
|
|
|
if ($t)
|
2016-05-29 17:36:52 +03:00
|
|
|
$t .= " $join JOIN $table ON ".($this->where_builder($v[2]) ?: '1=1');
|
2012-10-01 02:44:34 +04:00
|
|
|
else
|
2016-05-29 17:36:52 +03:00
|
|
|
{
|
|
|
|
$t = $table;
|
|
|
|
$where = $v[2]; // extract ON to WHERE if only a single join is specified
|
|
|
|
}
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
|
|
|
$tables = $t;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
$tables = preg_replace_callback('/((?:,|JOIN)\s*`)([^`]+)/s', array($this, 'tables_builder_pregcb1'), $tables);
|
|
|
|
return $tables;
|
|
|
|
}
|
|
|
|
|
|
|
|
function tables_builder_pregcb1($m)
|
|
|
|
{
|
2012-10-10 02:20:40 +04:00
|
|
|
if (isset($this->tableNames[$m[2]]))
|
|
|
|
return $m[1].$this->tableNames[$m[2]];
|
|
|
|
return $m[1].$m[2];
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
/**
|
|
|
|
* Run a SELECT query and return results.
|
|
|
|
*
|
|
|
|
* Usage: either
|
|
|
|
* $this->select($tables, $fields, $where, $options, $format)
|
|
|
|
* using $this->select_builder() or
|
|
|
|
* $this->select($sql_text, $format)
|
|
|
|
* using query text.
|
|
|
|
*
|
|
|
|
* @param int $format Return format, bitmask of MS_XX constants:
|
|
|
|
* MS_RESULT = return mysqli result object to manually fetch from
|
|
|
|
* MS_LIST = return rows as indexed arrays
|
|
|
|
* MS_HASH = return rows as associative arrays (default)
|
|
|
|
* MS_ROW = only return the first row
|
|
|
|
* MS_COL = only return the first column
|
|
|
|
* MS_VALUE = only return the first cell (just 1 value)
|
|
|
|
*/
|
2012-10-01 02:44:34 +04:00
|
|
|
function select($tables, $fields = '*', $where = 1, $options = NULL, $format = 0)
|
|
|
|
{
|
2013-03-30 00:57:58 +04:00
|
|
|
if (is_int($fields))
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
|
|
|
$sql = $tables;
|
|
|
|
$format = $fields;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
$sql = $this->select_builder($tables, $fields, $where, $options);
|
|
|
|
if ($format & MS_RESULT)
|
|
|
|
return $this->query($sql, MYSQLI_USE_RESULT);
|
2013-03-05 19:31:23 +04:00
|
|
|
$res = $this->query($sql);
|
|
|
|
return $this->fetch_all($res, $format);
|
|
|
|
}
|
|
|
|
|
|
|
|
function fetch_all($res, $format = 0)
|
|
|
|
{
|
2012-10-01 02:44:34 +04:00
|
|
|
if ($format & MS_LIST)
|
2013-03-05 19:31:23 +04:00
|
|
|
$r = $this->get_rows($res);
|
2012-10-01 02:44:34 +04:00
|
|
|
else
|
2013-03-05 19:31:23 +04:00
|
|
|
$r = $this->get_assocs($res);
|
2012-10-01 02:44:34 +04:00
|
|
|
if (!$r)
|
|
|
|
$r = array();
|
|
|
|
if ($format & MS_ROW)
|
|
|
|
{
|
2012-10-10 02:20:40 +04:00
|
|
|
if (!count($r))
|
|
|
|
return NULL;
|
2012-10-01 02:44:34 +04:00
|
|
|
if ($format & MS_COL)
|
|
|
|
{
|
|
|
|
$r = $r[0];
|
|
|
|
$k = array_keys($r);
|
|
|
|
$r = $r[$k[0]];
|
|
|
|
}
|
|
|
|
else
|
|
|
|
$r = $r[0];
|
|
|
|
}
|
|
|
|
elseif ($format & MS_COL)
|
|
|
|
{
|
2013-03-05 19:31:23 +04:00
|
|
|
$k = false;
|
2012-10-01 02:44:34 +04:00
|
|
|
foreach ($r as $i => $v)
|
|
|
|
{
|
|
|
|
if (!$k)
|
|
|
|
{
|
|
|
|
$k = array_keys($v);
|
|
|
|
$k = $k[0];
|
|
|
|
}
|
|
|
|
$r[$i] = $v[$k];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return $r;
|
|
|
|
}
|
|
|
|
|
|
|
|
function found_rows()
|
|
|
|
{
|
|
|
|
return $this->select('SELECT FOUND_ROWS()', MS_VALUE);
|
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
/**
|
|
|
|
* Delete a set of rows.
|
|
|
|
* @param mixed $tables see $this->tables_builder()
|
|
|
|
* @param mixed $where see $this->where_builder()
|
|
|
|
* @param array $options Options for query:
|
|
|
|
* 'LIMIT' => array($limit, $offset) or array($limit) or just $limit
|
|
|
|
* 'OFFSET' => $offset, for the case when 'LIMIT' is just $limit
|
|
|
|
*/
|
2012-10-01 02:44:34 +04:00
|
|
|
function delete($tables, $where, $options = NULL)
|
|
|
|
{
|
|
|
|
$tables = $this->tables_builder($tables);
|
2013-03-30 00:57:58 +04:00
|
|
|
$where = $this->where_builder($where) ?: '1=1';
|
2012-10-01 02:44:34 +04:00
|
|
|
$sql = "DELETE FROM $tables WHERE $where";
|
2012-10-10 02:20:40 +04:00
|
|
|
$sql .= $this->limit_option($options);
|
2012-10-01 02:44:34 +04:00
|
|
|
$this->query($sql);
|
|
|
|
return $this->link->affected_rows;
|
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
/**
|
|
|
|
* Builds an INSERT query.
|
|
|
|
* @param string $table Table name to insert rows to.
|
|
|
|
* @param array $rows Array of table rows to be inserted.
|
2016-05-29 17:36:52 +03:00
|
|
|
* @param string $action Conflict action: NULL, 'REPLACE', 'IGNORE' or 'UPDATE'
|
|
|
|
* REPLACE: delete matching rows, then insert all rows (MySQL REPLACE)
|
|
|
|
* IGNORE: ignore matching rows, insert missing rows (MySQL INSERT IGNORE)
|
|
|
|
* UPDATE: update matching rows, insert missing rows (MySQL INSERT ... ON DUPLICATE KEY UPDATE)
|
|
|
|
* @param array|string $uniqueKey Single unique key for conflict checking
|
|
|
|
* @param array|NULL $updateCols Columns to update in case of a conflict
|
2012-10-10 02:20:40 +04:00
|
|
|
*/
|
2016-05-29 17:36:52 +03:00
|
|
|
function insert_builder($table, $rows, $action = NULL, $uniqueKey = NULL, $updateCols = NULL)
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
2012-10-10 02:20:40 +04:00
|
|
|
if (isset($this->tableNames[$table]))
|
|
|
|
{
|
2012-10-01 02:44:34 +04:00
|
|
|
$table = $this->tableNames[$table];
|
2012-10-10 02:20:40 +04:00
|
|
|
}
|
2013-05-08 13:21:50 +04:00
|
|
|
$key = array_keys($rows[0]);
|
2012-10-01 02:44:34 +04:00
|
|
|
foreach ($rows as &$r)
|
|
|
|
{
|
|
|
|
$rs = array();
|
|
|
|
foreach ($key as &$k)
|
|
|
|
$rs[] = $this->quote($r[$k]);
|
|
|
|
$r = "(".implode(",", $rs).")";
|
|
|
|
}
|
2013-03-30 00:57:58 +04:00
|
|
|
$sphinx = !$this->username && !$this->password && !$this->dbname;
|
2012-10-01 02:44:34 +04:00
|
|
|
foreach ($key as &$k)
|
2013-03-30 00:57:58 +04:00
|
|
|
if (strpos($k, '`') === false && (!$sphinx || $k !== 'id'))
|
2012-10-01 02:44:34 +04:00
|
|
|
$k = $this->quoteId($k);
|
2016-05-29 17:36:52 +03:00
|
|
|
$sql = ($action == "REPLACE" ? "REPLACE" : "INSERT" . ($action == "IGNORE" ? " IGNORE" : "")).
|
2013-02-18 17:54:46 +04:00
|
|
|
" INTO $table (".implode(",",$key).") VALUES ".implode(",",$rows);
|
2016-05-29 17:36:52 +03:00
|
|
|
if ($action == "UPDATE")
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
2016-05-29 17:36:52 +03:00
|
|
|
if ($uniqueKey)
|
|
|
|
{
|
|
|
|
$uniqueKey = array_flip(is_array($uniqueKey) ? $uniqueKey : array_map('trim', explode(",", $uniqueKey)));
|
|
|
|
$cond = $uniqueKey;
|
|
|
|
foreach ($cond as $k => $v)
|
|
|
|
$v = "$k!=VALUES($k)";
|
|
|
|
// Trigger ERROR 1242 (21000): Subquery returns more than 1 row if trying to update based on different key conflict
|
|
|
|
$cond = "CASE WHEN ".implode(" OR ", $cond)." THEN (SELECT 1 UNION SELECT 2) ELSE ";
|
|
|
|
}
|
|
|
|
if ($updateCols)
|
|
|
|
$key = (array)$updateCols;
|
2012-10-01 02:44:34 +04:00
|
|
|
foreach ($key as &$k)
|
2016-05-29 17:36:52 +03:00
|
|
|
{
|
|
|
|
if ($uniqueKey && isset($uniqueKey[$k]))
|
|
|
|
$k = "$k=($cond $k END)";
|
|
|
|
else
|
|
|
|
$k = "$k=VALUES($k)";
|
|
|
|
}
|
2012-10-01 02:44:34 +04:00
|
|
|
$sql .= " ON DUPLICATE KEY UPDATE ".implode(",",$key);
|
|
|
|
}
|
|
|
|
return $sql;
|
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
/**
|
|
|
|
* Insert a single row into $table and return inserted ID.
|
|
|
|
* @param string $table Table name to insert row to.
|
|
|
|
* @param array $rows Row to be inserted.
|
|
|
|
* @return int $insert_id Autoincrement ID of inserted row (if appropriate).
|
|
|
|
*/
|
2012-10-01 02:44:34 +04:00
|
|
|
function insert_row($table, $row)
|
|
|
|
{
|
|
|
|
$sql = $this->insert_builder($table, array($row));
|
|
|
|
if ($this->query($sql))
|
|
|
|
return $this->link->insert_id;
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2012-10-01 02:44:37 +04:00
|
|
|
function insert_id()
|
|
|
|
{
|
|
|
|
return $this->link->insert_id;
|
|
|
|
}
|
|
|
|
|
2012-10-10 02:20:40 +04:00
|
|
|
/**
|
2016-05-29 17:36:52 +03:00
|
|
|
* Update row(s) in $table.
|
|
|
|
* $this->update($table, $set, $where, $options);
|
2012-10-10 02:20:40 +04:00
|
|
|
*
|
|
|
|
* @param string $table Table name to update.
|
|
|
|
* @param array $set Assoc array with values for update query.
|
|
|
|
* @param array $where Conditions for update query, see $this->where_builder().
|
|
|
|
* @param array $options Options for update query:
|
|
|
|
* 'LIMIT' => array($limit, $offset) or array($limit) or just $limit
|
|
|
|
* 'OFFSET' => $offset, for the case when 'LIMIT' is just $limit
|
|
|
|
*/
|
2012-10-01 02:44:34 +04:00
|
|
|
function update($table, $rows, $where = NULL, $options = NULL)
|
|
|
|
{
|
|
|
|
if (!$rows)
|
|
|
|
return false;
|
2016-05-29 17:36:52 +03:00
|
|
|
if (count(func_get_args()) == 2)
|
|
|
|
throw new Exception(__CLASS__."::update(table, rows) is the old syntax, use upsert()");
|
|
|
|
$sql = array();
|
|
|
|
foreach ((array)$rows as $k => $v)
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
2016-05-29 17:36:52 +03:00
|
|
|
if (!ctype_digit("$k"))
|
|
|
|
$sql[] = $k.'='.$this->quote($v);
|
|
|
|
else
|
|
|
|
$sql[] = $v;
|
2012-10-01 02:44:34 +04:00
|
|
|
}
|
2016-05-29 17:36:52 +03:00
|
|
|
$where = $this->where_builder($where) ?: '1=1';
|
|
|
|
$sql = 'UPDATE ' . $this->tables_builder($table) . ' SET ' . implode(', ', $sql) . ' WHERE ' . $where;
|
|
|
|
$sql .= $this->limit_option($options);
|
|
|
|
if ($this->query($sql))
|
|
|
|
return $this->link->affected_rows;
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* INSERT / REPLACE / INSERT IGNORE / INSERT OR UPDATE
|
|
|
|
*/
|
|
|
|
function insert($table, $rows, $onConflict = NULL, $uniqueKey = NULL)
|
|
|
|
{
|
|
|
|
if (!$rows || !is_array($rows))
|
|
|
|
return false;
|
|
|
|
$first = reset($rows);
|
|
|
|
if (!is_array($first))
|
|
|
|
$rows = array($rows);
|
|
|
|
$sql = $this->insert_builder($table, $rows, $onConflict, $uniqueKey);
|
2012-10-01 02:44:34 +04:00
|
|
|
if ($this->query($sql))
|
|
|
|
return $this->link->affected_rows;
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-05-29 17:36:52 +03:00
|
|
|
function insert_ignore($table, $rows, $uniqueKey = NULL)
|
|
|
|
{
|
|
|
|
return $this->insert($table, $rows, 'IGNORE', $uniqueKey);
|
|
|
|
}
|
|
|
|
|
|
|
|
function upsert($table, $rows, $uniqueKey = NULL, $updateCols = NULL)
|
|
|
|
{
|
|
|
|
return $this->insert($table, $rows, 'UPDATE', $uniqueKey, $updateCols);
|
|
|
|
}
|
|
|
|
|
|
|
|
function replace($table, $rows, $uniqueKey = NULL)
|
2013-03-05 19:31:23 +04:00
|
|
|
{
|
2016-05-29 17:36:52 +03:00
|
|
|
return $this->insert($table, $rows, 'REPLACE', $uniqueKey);
|
2013-03-05 19:31:23 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
protected function get_rows($res)
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
|
|
|
$r = array();
|
2013-03-05 19:31:23 +04:00
|
|
|
if ($res)
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
|
|
|
while ($row = $res->fetch_row())
|
|
|
|
$r[] = $row;
|
|
|
|
$res->free();
|
|
|
|
}
|
|
|
|
return $r;
|
|
|
|
}
|
|
|
|
|
2013-03-05 19:31:23 +04:00
|
|
|
protected function get_assocs($res)
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
|
|
|
$r = array();
|
2013-03-05 19:31:23 +04:00
|
|
|
if ($res)
|
2012-10-01 02:44:34 +04:00
|
|
|
{
|
|
|
|
while ($row = $res->fetch_assoc())
|
|
|
|
$r[] = $row;
|
|
|
|
$res->free();
|
|
|
|
}
|
|
|
|
return $r;
|
|
|
|
}
|
|
|
|
}
|