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functions.inc.php

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  • mysqli.lib.php 27.22 KiB
    <?php
    /* Copyright (C) 2001      Fabien Seisen        <seisen@linuxfr.org>
     * Copyright (C) 2002-2005 Rodolphe Quiedeville <rodolphe@quiedeville.org>
     * Copyright (C) 2004-2008 Laurent Destailleur  <eldy@users.sourceforge.net>
     * Copyright (C) 2006      Andre Cianfarani     <acianfa@free.fr>
     * Copyright (C) 2005-2007 Regis Houssin        <regis@dolibarr.fr>
     *
     * This program is free software; you can redistribute it and/or modify
     * it under the terms of the GNU General Public License as published by
     * the Free Software Foundation; either version 2 of the License, or
     * (at your option) any later version.
     *
     * This program is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     * GNU General Public License for more details.
     *
     * You should have received a copy of the GNU General Public License
     * along with this program; if not, write to the Free Software
     * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
     */
    
    /**
     *	\file       htdocs/lib/databases/mysqli.lib.php
     *	\brief      Class file to manage Dolibarr database access for a Mysql database
     *	\version	$Id$
     */
    // For compatibility during upgrade
    if (! defined('DOL_DOCUMENT_ROOT'))	 define('DOL_DOCUMENT_ROOT', '../..');
    if (! defined('ADODB_DATE_VERSION')) include_once(DOL_DOCUMENT_ROOT."/includes/adodbtime/adodb-time.inc.php");
    
    
    /**
     *	\class      DoliDb
     *	\brief      Class to manage Dolibarr database access for a Mysql database
     */
    class DoliDb
    {
    	//! Database handler
    	var $db;
    	//! Database type
    	var $type='mysqli';
    	//! Charset used to force charset when creating database
    	var $forcecharset='latin1';
    	//! Collate used to force collate when creating database
    	var $forcecollate='latin1_swedish_ci';
    	//! Version min database
    	var $versionmin=array(4,1,0);
    	//! Resultset of last request
    	var $results;
    	//! 1 if connected, 0 else  
    	var $connected;
    	//! 1 if database selected, 0 else
    	var $database_selected;
    	//! Database name selected
    	var $database_name;
    	//! Nom user base
    	var $database_user;
    	//! 1 si une transaction est en cours, 0 sinon
    	var $transaction_opened;
    	//! Last executed request
    	var $lastquery;
    	//! Last failed executed request
    	var $lastqueryerror;
    	//! Message erreur mysql
    	var $lasterror;
    	//! Message erreur mysql
    	var $lasterrno;
    
    	var $ok;
    	var $error;
    
    
    	/**
    	 \brief     Ouverture d'une connexion vers le serveur et �ventuellement une database.
    	 \param     type		Type de base de donn�es (mysql ou pgsql)
    	 \param	    host		Addresse de la base de donn�es
    	 \param	    user		Nom de l'utilisateur autoris�
    	 \param	    pass		Mot de passe
    	 \param	    name		Nom de la database
    	 \param	    port		Port of database server
    	 \return    int			1 en cas de succes, 0 sinon
    	 */
    	function DoliDb($type='mysqli', $host, $user, $pass, $name='', $port=0)
    	{
    		global $conf,$langs;
    
    		if (isset($conf->db->character_set) && $conf->db->character_set) {
    			$this->forcecharset=$conf->db->character_set;
    		}
    		if (isset($conf->db->dolibarr_main_db_collation) && $conf->db->dolibarr_main_db_collation) {
    			$this->forcecollate=$conf->db->dolibarr_main_db_collation;
    		}
    		$this->database_user=$user;
    
    		$this->transaction_opened=0;
    
    		//print "Name DB: $host,$user,$pass,$name<br>";
    
    		if (! function_exists("mysqli_connect"))
    		{
    			$this->connected = 0;
    			$this->ok = 0;
    			$this->error="Mysqli PHP functions for using Mysqli driver are not available in this version of PHP. Try to use another driver.";
    			dolibarr_syslog("DoliDB::DoliDB : Mysqli PHP functions for using Mysqli driver are not available in this version of PHP. Try to use another driver.",LOG_ERR);
    			return $this->ok;
    		}
    
    		if (! $host)
    		{
    			$this->connected = 0;
    			$this->ok = 0;
    			$this->error=$langs->trans("ErrorWrongHostParameter");
    			dolibarr_syslog("DoliDB::DoliDB : Erreur Connect, wrong host parameters",LOG_ERR);
    			return $this->ok;
    		}
    
    		// Essai connexion serveur
    		// We do not try to connect to database, only to server. Connect to database is done later in constrcutor
    		$this->db = $this->connect($host, $user, $pass, '', $port);
    
    		if ($this->db)
    		{
    			$this->connected = 1;
    			$this->ok = 1;
    		}
    		else
    		{
    			// host, login ou password incorrect
    			$this->connected = 0;
    			$this->ok = 0;
    			$this->error=mysqli_connect_error();
    			dolibarr_syslog("DoliDB::DoliDB : Erreur Connect mysqli_connect_error=".$this->error,LOG_ERR);
    		}
    
    		// Si connexion serveur ok et si connexion base demandee, on essaie connexion base
    		if ($this->connected && $name)
    		{
    			if ($this->select_db($name))
    			{
    				$this->database_selected = 1;
    				$this->database_name = $name;
    				$this->ok = 1;
    
    				// If client connected with different charset than Dolibarr HTML output
    				$clientmustbe='';
    				if (eregi('UTF-8',$conf->character_set_client))      $clientmustbe='utf8';
    				if (eregi('ISO-8859-1',$conf->character_set_client)) $clientmustbe='latin1';
    				if (mysqli_client_encoding($this->db) != $clientmustbe)
    				{
    					$this->query("SET NAMES '".$clientmustbe."'", $this->db);
    					//$this->query("SET CHARACTER SET ". $this->forcecharset);
    				}
    			}
    			else
    			{
    				$this->database_selected = 0;
    				$this->database_name = '';
    				$this->ok = 0;
    				$this->error=$this->error();
    				dolibarr_syslog("DoliDB::DoliDB : Erreur Select_db ".$this->error,LOG_ERR);
    			}
    		}
    		else
    		{
    			// Pas de selection de base demandee, ok ou ko
    			$this->database_selected = 0;
    			
    			if ($this->connected)
    			{
    				// If client connected with different charset than Dolibarr HTML output
    				$clientmustbe='';
    				if (eregi('UTF-8',$conf->character_set_client))      $clientmustbe='utf8';
    				if (eregi('ISO-8859-1',$conf->character_set_client)) $clientmustbe='latin1';
    				if (mysqli_client_encoding($this->db) != $clientmustbe)
    				{
    					$this->query("SET NAMES '".$clientmustbe."'", $this->db);
    					//$this->query("SET CHARACTER SET ". $this->forcecharset);
    				}
    			}
    		}
    
    		return $this->ok;
    	}
    
    
    	/**
    	 *	\brief		Convert a SQL request in mysql syntax to database syntax
    	 * 	\param		line		SQL request line to convert
    	 * 	\return		string		SQL request line converted
    	 */
    	function convertSQLFromMysql($line)
    	{
    		return $line;
    	}
    
    	/**
    	 *	\brief      Selectionne une database.
    	 *	\param	    database		Nom de la database
    	 *	\return	    boolean         true si ok, false si ko
    	 */
    	function select_db($database)
    	{
    		return mysqli_select_db($this->db,$database);
    	}
    
    
    	/**
    	 *	\brief      Connexion to server
    	 *	\param	    host		database server host
    	 *	\param	    login		login
    	 *	\param	    passwd		password
    	 *	\param		name		nom de la database (ne sert pas sous mysql, sert sous pgsql)
    	 *	\param		port		Port of database server
    	 *	\return		resource	Database access handler
    	 *	\seealso	close
    	 */
    	function connect($host, $login, $passwd, $name, $port=0)
    	{
    		dolibarr_syslog("DoliDB::connect host=$host, port=$port, login=$login, passwd=--hidden--, name=$name",LOG_DEBUG);
    
    		$newhost=$host;
    		$newport=$port;
    
    		// With mysqli, port must be in connect parameters
    		if (! $newport) $newport=3306;
    
    		$this->db  = @mysqli_connect($newhost, $login, $passwd, $name, $newport);
    
    		//print "Resultat fonction connect: ".$this->db;
    		return $this->db;
    	}
    
    	/**
    	 \brief          Renvoie la version du serveur
    	 \return	        string      Chaine version
    	 */
    	function getVersion()
    	{
    		//        $resql=$this->query('SELECT VERSION()');
    		//        $row=$this->fetch_row($resql);
    		//        return $row[0];
    		return mysqli_get_server_info($this->db);
    	}
    
    	/**
    	 \brief          Renvoie la version du serveur sous forme de nombre
    	 \return	        string      Chaine version
    	 */
    	function getIntVersion()
    	{
    		$version=	$this->getVersion();
    		$vlist=split('[.-]',$version);
    		if (strlen($vlist[1])==1){
    			$vlist[1]="0".$vlist[1];
    		}
    		if (strlen($vlist[2])==1){
    			$vlist[2]="0".$vlist[2];
    		}
    		return $vlist[0].$vlist[1].$vlist[2];
    	}
    
    	/**
    	 \brief          Renvoie la version du serveur dans un tableau
    	 \return	        array  		Tableau de chaque niveau de version
    	 */
    	function getVersionArray()
    	{
    		return split('\.',$this->getVersion());
    	}
    
    
    	/**
    	 \brief      Fermeture d'une connexion vers une database.
    	 \return	    resource
    	 \seealso	connect
    	 */
    	function close()
    	{
    		return mysqli_close($this->db);
    	}
    
    
    	/**
    	 \brief      Debut d'une transaction.
    	 \return	    int         1 si ouverture transaction ok ou deja ouverte, 0 en cas d'erreur
    	 */
    	function begin()
    	{
    		if (! $this->transaction_opened)
    		{
    			$ret=$this->query("BEGIN");
    			if ($ret)
    			{
    				$this->transaction_opened++;
    				dolibarr_syslog("BEGIN Transaction",LOG_DEBUG);
    			}
    			return $ret;
    		}
    		else
    		{
    			$this->transaction_opened++;
    			return 1;
    		}
    	}
    
    	/**
    	 \brief      Validation d'une transaction
    	 \return	    int         1 si validation ok ou niveau de transaction non ouverte, 0 en cas d'erreur
    	 */
    	function commit()
    	{
    		if ($this->transaction_opened<=1)
    		{
    			$ret=$this->query("COMMIT");
    			if ($ret)
    			{
    				$this->transaction_opened=0;
    				dolibarr_syslog("COMMIT Transaction",LOG_DEBUG);
    			}
    			return $ret;
    		}
    		else
    		{
    			$this->transaction_opened--;
    			return 1;
    		}
    	}
    
    	/**
    	 \brief      Annulation d'une transaction et retour aux anciennes valeurs
    	 \return	    int         1 si annulation ok ou transaction non ouverte, 0 en cas d'erreur
    	 */
    	function rollback()
    	{
    		if ($this->transaction_opened<=1)
    		{
    			$ret=$this->query("ROLLBACK");
    			$this->transaction_opened=0;
    			dolibarr_syslog("ROLLBACK Transaction",LOG_DEBUG);
    			return $ret;
    		}
    		else
    		{
    			$this->transaction_opened--;
    			return 1;
    		}
    	}
    
    	/**
    	 \brief      Effectue une requete et renvoi le resultset de r�ponse de la base
    	 \param	    query	    Contenu de la query
    	 \return	    resource    Resultset de la reponse
    	 */
    	function query($query)
    	{
    		$query = trim($query);
    		if (! $this->database_name)
    		{
    			// Ordre SQL ne necessitant pas de connexion a une base (exemple: CREATE DATABASE)
    			$ret = mysqli_query($this->db,$query);
    		}
    		else
    		{
    			$ret = mysqli_query($this->db,$query);
    		}
    
    		if (! eregi("^COMMIT",$query) && ! eregi("^ROLLBACK",$query))
    		{
    			// Si requete utilisateur, on la sauvegarde ainsi que son resultset
    			if (! $ret)
    			{
    				$this->lastqueryerror = $query;
    				$this->lasterror = $this->error();
    				$this->lasterrno = $this->errno();
    			}
    			$this->lastquery=$query;
    			$this->results = $ret;
    		}
    
    		return $ret;
    	}
    
    	/**
    	 \brief      Renvoie la ligne courante (comme un objet) pour le curseur resultset.
    	 \param      resultset   Curseur de la requete voulue
    	 \return	    resource
    	 */
    	function fetch_object($resultset=0)
    	{
    		// Si le resultset n'est pas fourni, on prend le dernier utilise sur cette connexion
    		if (! is_object($resultset)) { $resultset=$this->results; }
    		return mysqli_fetch_object($resultset);
    	}
    
    
    	/**
    	 \brief      Renvoie les donn�es dans un tableau.
    	 \param      resultset   Curseur de la requete voulue
    	 \return	    array
    	 */
    
    	function fetch_array($resultset=0)
    	{
    		// Si le resultset n'est pas fourni, on prend le dernier utilise sur cette connexion
    		if (! is_object($resultset)) { $resultset=$this->results; }
    		return mysqli_fetch_array($resultset);
    	}
    
    	/**
    	 \brief      Renvoie les donn�es comme un tableau.
    	 \param      resultset   Curseur de la requete voulue
    	 \return	    array
    	 */
    
    	function fetch_row($resultset=0)
    	{
    		// Si le resultset n'est pas fourni, on prend le dernier utilise sur cette connexion
    		if (! is_bool($resultset))
    		{
    			if (! is_object($resultset)) { $resultset=$this->results; }
    			return mysqli_fetch_row($resultset);
    		}
    		else
    		{
    			// si le curseur est un booleen on retourne la valeur 0
    			return 0;
    		}
    	}
    
    	/**
    	 \brief      Renvoie le nombre de lignes dans le resultat d'une requete SELECT
    	 \see    	affected_rows
    	 \param      resultset   Curseur de la requete voulue
    	 \return     int		    Nombre de lignes
    	 */
    	function num_rows($resultset=0)
    	{
    		// Si le resultset n'est pas fourni, on prend le dernier utilis� sur cette connexion
    		if (! is_object($resultset)) { $resultset=$this->results; }
    		return mysqli_num_rows($resultset);
    	}
    
    	/**
    	 \brief      Renvoie le nombre de lignes dans le resultat d'une requete INSERT, DELETE ou UPDATE
    	 \see    	num_rows
    	 \param      resultset   Curseur de la requete voulue
    	 \return     int		    Nombre de lignes
    	 */
    
    	function affected_rows($resultset=0)
    	{
    		// Si le resultset n'est pas fourni, on prend le dernier utilis� sur cette connexion
    		if (! is_object($resultset)) { $resultset=$this->results; }
    		// mysql necessite un link de base pour cette fonction contrairement
    		// a pqsql qui prend un resultset
    		return mysqli_affected_rows($this->db);
    	}
    
    
    	/**
    	 \brief      Lib�re le dernier resultset utilis� sur cette connexion.
    	 \param      resultset   Curseur de la requete voulue
    	 */
    	function free($resultset=0)
    	{
    		// Si le resultset n'est pas fourni, on prend le dernier utilis� sur cette connexion
    		if (! is_object($resultset)) { $resultset=$this->results; }
    		// Si resultset en est un, on libere la m�moire
    		if (is_object($resultset)) mysqli_free_result($resultset);
    	}
    
    
    	/**
    	 \brief      D�fini les limites de la requ�te.
    	 \param	    limit       nombre maximum de lignes retourn�es
    	 \param	    offset      num�ro de la ligne � partir de laquelle recup�rer les ligne
    	 \return	    string      chaine exprimant la syntax sql de la limite
    	 */
    	function plimit($limit=0,$offset=0)
    	{
    		global $conf;
    		if (! $limit) $limit=$conf->liste_limit;
    		if ($offset > 0) return " LIMIT $offset,$limit ";
    		else return " LIMIT $limit ";
    	}
    
    
    	/**
    	 \brief      D�fini le tri de la requ�te.
    	 \param	    sortfield   liste des champ de tri
    	 \param	    sortorder   ordre du tri
    	 \return	    string      chaine exprimant la syntax sql de l'ordre de tri
    		\TODO		A mutualiser dans classe mere
    		*/
    	function order($sortfield=0,$sortorder=0)
    	{
    		if ($sortfield)
    		{
    			$return='';
    			$fields=split(',',$sortfield);
    			foreach($fields as $val)
    			{
    				if (! $return) $return.=' ORDER BY ';
    				else $return.=',';
    
    				$return.=$val;
    				if ($sortorder) $return.=' '.$sortorder;
    			}
    			return $return;
    		}
    		else
    		{
    			return '';
    		}
    	}
    
    
    	/**
    	 \brief      Escape a string to insert data.
    	 \param	    stringtoencode		String to escape
    	 \return	    string				String escaped
    	 */
    	function escape($stringtoencode)
    	{
    		return addslashes($stringtoencode);
    	}
    
    
    	/**
    	 *   \brief      Formatage (par la base de donn�es) d'un champ de la base au format TMS ou Date (YYYY-MM-DD HH:MM:SS)
    	 *               afin de retourner une donn�e toujours au format universel date TMS unix.
    	 *               Fonction � utiliser pour g�n�rer les SELECT.
    	 *   \param	    param       Nom champ base de type date ou chaine 'YYYY-MM-DD HH:MM:SS'
    	 *   \return	    date        Date au format TMS.
    	 *	\TODO		Remove unix_timestamp functions
    	 */
    	function pdate($param)
    	{
    		return "unix_timestamp(".$param.")";
    	}
    
    	/**
    	 *   \brief     Formatage (par PHP) d'une date vers format texte pour insertion dans champ date.
    	 *              Fonction � utiliser pour g�n�rer les INSERT, UPDATE ou les clauses WHERE
    	 *   \param	    param       Date TMS � convertir
    	 *   \return	date        Date au format texte YYYYMMDDHHMMSS.
    	 */
    	function idate($param)
    	{
    		return adodb_strftime("%Y%m%d%H%M%S",$param);
    	}
    
    
    	/**
    	 \brief      Formatage d'un if SQL
    	 \param		test            chaine test
    	 \param		resok           resultat si test egal
    	 \param		resko           resultat si test non egal
    	 \return		string          chaine format� SQL
    	 */
    	function ifsql($test,$resok,$resko)
    	{
    		return 'IF('.$test.','.$resok.','.$resko.')';
    	}
    
    
    	/**
    	 \brief      Renvoie la derniere requete soumise par la methode query()
    	 \return	    lastquery
    	 */
    	function lastquery()
    	{
    		return $this->lastquery;
    	}
    
    	/**
    	 \brief      Renvoie la derniere requete en erreur
    	 \return	    string	lastqueryerror
    	 */
    	function lastqueryerror()
    	{
    		return $this->lastqueryerror;
    	}
    
    	/**
    	 \brief      Renvoie le libelle derniere erreur
    	 \return	    string	lasterror
    	 */
    	function lasterror()
    	{
    		return $this->lasterror;
    	}
    
    	/**
    	 \brief      Renvoie le code derniere erreur
    	 \return	    string	lasterrno
    	 */
    	function lasterrno()
    	{
    		return $this->lasterrno;
    	}
    
    	/**
    	 \brief     Renvoie le code erreur generique de l'operation precedente.
    	 \return    error_num       (Exemples: DB_ERROR_TABLE_ALREADY_EXISTS, DB_ERROR_RECORD_ALREADY_EXISTS...)
    	 */
    	function errno()
    	{
    		if (! $this->connected) {
    			// Si il y a eu echec de connexion, $this->db n'est pas valide.
    			return 'DB_ERROR_FAILED_TO_CONNECT';
    		}
    		else {
    			// Constants to convert a MySql error code to a generic Dolibarr error code
    			$errorcode_map = array(
    			1004 => 'DB_ERROR_CANNOT_CREATE',
    			1005 => 'DB_ERROR_CANNOT_CREATE',
    			1006 => 'DB_ERROR_CANNOT_CREATE',
    			1007 => 'DB_ERROR_ALREADY_EXISTS',
    			1008 => 'DB_ERROR_CANNOT_DROP',
    			1025 => 'DB_ERROR_NO_FOREIGN_KEY_TO_DROP',
    			1044 => 'DB_ERROR_ACCESSDENIED',
    			1046 => 'DB_ERROR_NODBSELECTED',
    			1048 => 'DB_ERROR_CONSTRAINT',
    			1050 => 'DB_ERROR_TABLE_ALREADY_EXISTS',
    			1051 => 'DB_ERROR_NOSUCHTABLE',
    			1054 => 'DB_ERROR_NOSUCHFIELD',
    			1060 => 'DB_ERROR_COLUMN_ALREADY_EXISTS',
    			1061 => 'DB_ERROR_KEY_NAME_ALREADY_EXISTS',
    			1062 => 'DB_ERROR_RECORD_ALREADY_EXISTS',
    			1064 => 'DB_ERROR_SYNTAX',
    			1068 => 'DB_ERROR_PRIMARY_KEY_ALREADY_EXISTS',
    			1075 => 'DB_ERROR_CANT_DROP_PRIMARY_KEY',
    			1091 => 'DB_ERROR_NOSUCHFIELD',
    			1100 => 'DB_ERROR_NOT_LOCKED',
    			1136 => 'DB_ERROR_VALUE_COUNT_ON_ROW',
    			1146 => 'DB_ERROR_NOSUCHTABLE',
    			1216 => 'DB_ERROR_NO_PARENT',
    			1217 => 'DB_ERROR_CHILD_EXISTS',
    			1451 => 'DB_ERROR_CHILD_EXISTS'
    		     );
    		
    			if (isset($errorcode_map[mysqli_errno($this->db)]))
    			{
    				return $errorcode_map[mysqli_errno($this->db)];
    			}
    			$errno=mysqli_errno($this->db);
    			return ($errno?'DB_ERROR_'.$errno:'0');
    		}
    	}
    
    	/**
    	 \brief     Renvoie le texte de l'erreur mysql de l'operation precedente.
    	 \return    error_text
    	 */
    	function error()
    	{
    		if (! $this->connected) {
    			// Si il y a eu echec de connexion, $this->db n'est pas valide pour mysqli_error.
    			return 'Not connected. Check setup parameters in conf/conf.php file and your mysql client and server versions';
    		}
    		else {
    			return mysqli_error($this->db);
    		}
    	}
    
    	/**
    	 \brief     R�cup�re l'id gen�r� par le dernier INSERT.
    	 \param     tab     Nom de la table concern�e par l'insert. Ne sert pas sous MySql mais requis pour compatibilit� avec Postgresql
    	 \return    int     id
    	 */
    	function last_insert_id($tab)
    	{
    		return mysqli_insert_id($this->db);
    	}
    
    
    
    	// Next function are not required. Only minor features use them.
    	//--------------------------------------------------------------
    
    
    
    	/**
    	 \brief          Renvoie l'id de la connexion
    	 \return	        string      Id connexion
    	 */
    	function DDLGetConnectId()
    	{
    		$resql=$this->query('SELECT CONNECTION_ID()');
    		$row=$this->fetch_row($resql);
    		return $row[0];
    	}
    
    
    	/**
    	 *	\brief          Create a new database
    	 *	\param	        database		Database name to create
    	 *	\return	        resource		resource defined if OK, null if KO
    	 *	\remarks        Do not use function xxx_create_db (xxx=mysql, ...) as they are deprecated
    	 *					We force to create database with charset this->forcecharset and collate this->forcecollate
    	 */
    	function DDLCreateDb($database)
    	{
    		// ALTER DATABASE dolibarr_db DEFAULT CHARACTER SET latin DEFAULT COLLATE latin1_swedish_ci
    		$sql = 'CREATE DATABASE '.$database;
    		$sql.= ' DEFAULT CHARACTER SET '.$this->forcecharset.' DEFAULT COLLATE '.$this->forcecollate;
    
    		dolibarr_syslog($sql,LOG_DEBUG);
    		$ret=$this->query($sql);
    		if (! $ret)
    		{
    			// We try again for compatibility with Mysql < 4.1.1
    			$sql = 'CREATE DATABASE '.$database;
    			$ret=$this->query($sql);
    		}
    		return $ret;
    	}
    
    	/**
    		\brief     	Liste des tables dans une database.
    		\param	    database		Nom de la database
    		\param	    table   		Filtre sur tables � rechercher
    		\return	    array			Tableau des tables de la base
    		*/
    	function DDLListTables($database, $table='')
    	{
    		$listtables=array();
    
    		$like = '';
    		if ($table) $like = "LIKE '".$table."'";
    		$sql="SHOW TABLES FROM ".$database." ".$like.";";
    		//print $sql;
    		$result = $this->query($sql);
    		while($row = $this->fetch_row($result))
    		{
    			$listtables[] = $row[0];
    		}
    		return $listtables;
    	}
    
    	/**
    		\brief      Cr�e une table
    		\param	    table 			Nom de la table
    		\param	    fields 			Tableau associatif [nom champ][tableau des descriptions]
    		\param	    primary_key 	Nom du champ qui sera la clef primaire
    		\param	    unique_keys 	Tableau associatifs Nom de champs qui seront clef unique => valeur
    		\param	    fulltext 		Tableau des Nom de champs qui seront index�s en fulltext
    		\param	    key 			Tableau des champs cl�s noms => valeur
    		\param	    type 			Type de la table
    		\return	    int				<0 si KO, >=0 si OK
    		*/
    	function DDLCreateTable($table,$fields,$primary_key,$type,$unique_keys="",$fulltext_keys="",$keys="")
    	{
    		// cl�s recherch�es dans le tableau des descriptions (fields) : type,value,attribute,null,default,extra
    		// ex. : $fields['rowid'] = array('type'=>'int','value'=>'11','null'=>'not null','extra'=> 'auto_increment');
    		$sql = "create table ".$table."(";
    		$i=0;
    		foreach($fields as $field_name => $field_desc)
    		{
    			$sqlfields[$i] = $field_name." ";
    			$sqlfields[$i]  .= $field_desc['type'];
    			if( eregi("^[^ ]",$field_desc['value']))
    			$sqlfields[$i]  .= "(".$field_desc['value'].")";
    			else if( eregi("^[^ ]",$field_desc['attribute']))
    			$sqlfields[$i]  .= " ".$field_desc['attribute'];
    			else if( eregi("^[^ ]",$field_desc['default']))
    			{
    				if(eregi("null",$field_desc['default']))
    				$sqlfields[$i]  .= " default ".$field_desc['default'];
    				else
    				$sqlfields[$i]  .= " default '".$field_desc['default']."'";
    			}
    			else if( eregi("^[^ ]",$field_desc['null']))
    			$sqlfields[$i]  .= " ".$field_desc['null'];
    
    			else if( eregi("^[^ ]",$field_desc['extra']))
    			$sqlfields[$i]  .= " ".$field_desc['extra'];
    			$i++;
    		}
    		if($primary_key != "")
    		$pk = "primary key(".$primary_key.")";
    
    		if($unique_keys != "")
    		{
    			$i = 0;
    			foreach($unique_keys as $key => $value)
    			{
    				$sqluq[$i] = "UNIQUE KEY '".$key."' ('".$value."')";
    				$i++;
    			}
    		}
    		if($keys != "")
    		{
    			$i = 0;
    			foreach($keys as $key => $value)
    			{
    				$sqlk[$i] = "KEY ".$key." (".$value.")";
    				$i++;
    			}
    		}
    		$sql .= implode(',',$sqlfields);
    		if($primary_key != "")
    		$sql .= ",".$pk;
    		if($unique_keys != "")
    		$sql .= ",".implode(',',$sqluq);
    		if($keys != "")
    		$sql .= ",".implode(',',$sqlk);
    		$sql .=") type=".$type;
    
    		dolibarr_syslog($sql,LOG_DEBUG);
    		if(! $this -> query($sql))
    		return -1;
    		else
    		return 1;
    	}
    
    	/**
    		\brief      d�crit une table dans une database.
    		\param	    table	Nom de la table
    		\param	    field	Optionnel : Nom du champ si l'on veut la desc d'un champ
    		\return	    resource
    		*/
    	function DDLDescTable($table,$field="")
    	{
    		$sql="DESC ".$table." ".$field;
    
    		dolibarr_syslog($sql,LOG_DEBUG);
    		$this->results = $this->query($sql);
    		return $this->results;
    	}
    
    	/**
    		\brief      Ins�re un nouveau champ dans une table
    		\param	    table 			Nom de la table
    		\param		field_name 		Nom du champ � ins�rer
    		\param	    field_desc 		Tableau associatif de description duchamp � ins�rer[nom du param�tre][valeur du param�tre]
    		\param	    field_position 	Optionnel ex.: "after champtruc"
    		\return	    int				<0 si KO, >0 si OK
    		*/
    	function DDLAddField($table,$field_name,$field_desc,$field_position="")
    	{
    		// cl�s recherch�es dans le tableau des descriptions (field_desc) : type,value,attribute,null,default,extra
    		// ex. : $field_desc = array('type'=>'int','value'=>'11','null'=>'not null','extra'=> 'auto_increment');
    		$sql= "ALTER TABLE ".$table." ADD ".$field_name." ";
    		$sql .= $field_desc['type'];
    		if( eregi("^[^ ]",$field_desc['value']))
    		$sql  .= "(".$field_desc['value'].")";
    		if( eregi("^[^ ]",$field_desc['attribute']))
    		$sql  .= " ".$field_desc['attribute'];
    		if( eregi("^[^ ]",$field_desc['null']))
    		$sql  .= " ".$field_desc['null'];
    		if( eregi("^[^ ]",$field_desc['default']))
    		if(eregi("null",$field_desc['default']))
    		$sql  .= " default ".$field_desc['default'];
    		else
    		$sql  .= " default '".$field_desc['default']."'";
    		if( eregi("^[^ ]",$field_desc['extra']))
    		$sql  .= " ".$field_desc['extra'];
    		$sql .= " ".$field_position;
    
    		dolibarr_syslog($sql,LOG_DEBUG);
    		if(! $this -> query($sql))
    		return -1;
    		else
    		return 1;
    	}
    
    	/**
    	 \brief      Create a user
    	 \param	    dolibarr_main_db_host 		Ip serveur
    	 \param	    dolibarr_main_db_user 		Nom user � cr�er
    	 \param	    dolibarr_main_db_pass 		Mot de passe user � cr�er
    	 \param		dolibarr_main_db_name		Database name where user must be granted
    	 \return	    int							<0 si KO, >=0 si OK
    	 */
    	function DDLCreateUser($dolibarr_main_db_host,$dolibarr_main_db_user,$dolibarr_main_db_pass,$dolibarr_main_db_name)
    	{
    		$sql = "INSERT INTO user ";
    		$sql.= "(Host,User,password,Select_priv,Insert_priv,Update_priv,Delete_priv,Create_priv,Drop_priv,Index_Priv,Alter_priv)";
    		$sql.= " VALUES ('$dolibarr_main_db_host','$dolibarr_main_db_user',password('$dolibarr_main_db_pass')";
    		$sql.= ",'Y','Y','Y','Y','Y','Y','Y','Y');";
    
    		dolibarr_syslog("mysqli.lib::DDLCreateUser sql=".$sql);
    		$resql=$this->query($sql);
    		if (! $resql)
    		{
    			return -1;
    		}
    
    		$sql = "INSERT INTO db ";
    		$sql.= "(Host,Db,User,Select_priv,Insert_priv,Update_priv,Delete_priv,Create_priv,Drop_priv,Index_Priv,Alter_priv)";
    		$sql.= " VALUES ('$dolibarr_main_db_host','$dolibarr_main_db_name','$dolibarr_main_db_user'";
    		$sql.= ",'Y','Y','Y','Y','Y','Y','Y','Y');";
    
    		dolibarr_syslog("mysqli.lib::DDLCreateUser sql=".$sql);
    		$resql=$this->query($sql);
    		if (! $resql)
    		{
    			return -1;
    		}
    
    		$sql="FLUSH Privileges";
    
    		dolibarr_syslog("mysqli.lib::DDLCreateUser sql=".$sql);
    		$resql=$this->query($sql);
    
    		return 1;
    	}
    
    	/**
    	 *	\brief		Return charset used to store data in database
    	 *	\return		string		Charset
    	 */
    	function getDefaultCharacterSetDatabase()
    	{
    		$resql=$this->query('SHOW VARIABLES LIKE \'character_set_database\'');
    		if (!$resql)
    		{
    			// version Mysql < 4.1.1
    			return $this->forcecharset;
    		}
    		$liste=$this->fetch_array($resql);
    		return $liste['Value'];
    	}
    
    	/**
    	 *	\brief		Return list of available charset that can be used to store data in database
    	 *	\return		array		List of Charset
    	 */
    	function getListOfCharacterSet()
    	{
    		$resql=$this->query('SHOW CHARSET');
    		$liste = array();
    		if ($resql)
    		{
    			$i = 0;
    			while ($obj = $this->fetch_object($resql) )
    			{
    				$liste[$i]['charset'] = $obj->Charset;
    				$liste[$i]['description'] = $obj->Description;
    				$i++;
    			}
    			$this->free($resql);
    		} else {
    			// version Mysql < 4.1.1
    			return null;
    		}
    		return $liste;
    	}
    
    	/**
    	 *	\brief		Return collation used in database
    	 *	\return		string		Collation value
    	 */
    	function getDefaultCollationDatabase()
    	{
    		$resql=$this->query('SHOW VARIABLES LIKE \'collation_database\'');
    		if (!$resql)
    		{
    			// version Mysql < 4.1.1
    			return $this->forcecollate;
    		}
    		$liste=$this->fetch_array($resql);
    		return $liste['Value'];
    	}
    
    	/**
    	 *	\brief		Return list of available collation that can be used for database
    	 *	\return		array		Liste of Collation
    	 */
    	function getListOfCollation()
    	{
    		$resql=$this->query('SHOW COLLATION');
    		$liste = array();
    		if ($resql)
    		{
    			$i = 0;
    			while ($obj = $this->fetch_object($resql) )
    			{
    				$liste[$i]['collation'] = $obj->Collation;
    				$i++;
    			}
    			$this->free($resql);
    		} else {
    			// version Mysql < 4.1.1
    			return null;
    		}
    		return $liste;
    	}
    }
    
    ?>