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dolibarr-fork/htdocs/core/db/DoliDB.class.php
2015-02-14 12:24:16 +01:00

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<?php
/*
* Copyright (C) 2013-2014 Raphaël Doursenaud <rdoursenaud@gpcsolutions.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 3 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, see <http://www.gnu.org/licenses/>.
*/
/**
* \file htdocs/core/db/DoliDB.class.php
* \brief Class file to manage Dolibarr database access
*/
require_once DOL_DOCUMENT_ROOT .'/core/db/Database.interface.php';
/**
* Class to manage Dolibarr database access
*/
abstract class DoliDB implements Database
{
//! Database handler
public $db;
//! Database type
public $type;
//! Charset used to force charset when creating database
public $forcecharset='utf8';
//! Collate used to force collate when creating database
public $forcecollate='utf8_general_ci';
//! Resultset of last query
private $_results;
//! 1 if connected, else 0
public $connected;
//! 1 if database selected, else 0
public $database_selected;
//! Selected database name
public $database_name;
//! Database username
public $database_user;
//! Database host
public $database_host;
//! Database port
public $database_port;
//! >=1 if a transaction is opened, 0 otherwise
public $transaction_opened;
//! Last successful query
public $lastquery;
//! Last failed query
public $lastqueryerror;
//! Last error message
public $lasterror;
//! Last error number
public $lasterrno;
public $ok;
public $error;
/**
* Format a SQL IF
*
* @param string $test Test string (example: 'cd.statut=0', 'field IS NULL')
* @param string $resok resultat si test egal
* @param string $resko resultat si test non egal
* @return string SQL string
*/
function ifsql($test,$resok,$resko)
{
return 'IF('.$test.','.$resok.','.$resko.')';
}
/**
* Convert (by PHP) a GM Timestamp date into a string date with PHP server TZ to insert into a date field.
* Function to use to build INSERT, UPDATE or WHERE predica
*
* @param string $param Date TMS to convert
* @return string Date in a string YYYYMMDDHHMMSS
*/
function idate($param)
{
return dol_print_date($param,"%Y%m%d%H%M%S");
}
/**
* Return last error code
*
* @return string lasterrno
*/
function lasterrno()
{
return $this->lasterrno;
}
/**
* Start transaction
*
* @return int 1 if transaction successfuly opened or already opened, 0 if error
*/
function begin()
{
if (! $this->transaction_opened)
{
$ret=$this->query("BEGIN");
if ($ret)
{
$this->transaction_opened++;
dol_syslog("BEGIN Transaction",LOG_DEBUG);
dol_syslog('',0,1);
}
return $ret;
}
else
{
$this->transaction_opened++;
dol_syslog('',0,1);
return 1;
}
}
/**
* Validate a database transaction
*
* @param string $log Add more log to default log line
* @return int 1 if validation is OK or transaction level no started, 0 if ERROR
*/
function commit($log='')
{
dol_syslog('',0,-1);
if ($this->transaction_opened<=1)
{
$ret=$this->query("COMMIT");
if ($ret)
{
$this->transaction_opened=0;
dol_syslog("COMMIT Transaction".($log?' '.$log:''),LOG_DEBUG);
return 1;
}
else
{
return 0;
}
}
else
{
$this->transaction_opened--;
return 1;
}
}
/**
* Annulation d'une transaction et retour aux anciennes valeurs
*
* @param string $log Add more log to default log line
* @return resource|int 1 si annulation ok ou transaction non ouverte, 0 en cas d'erreur
*/
function rollback($log='')
{
dol_syslog('',0,-1);
if ($this->transaction_opened<=1)
{
$ret=$this->query("ROLLBACK");
$this->transaction_opened=0;
dol_syslog("ROLLBACK Transaction".($log?' '.$log:''),LOG_DEBUG);
return $ret;
}
else
{
$this->transaction_opened--;
return 1;
}
}
/**
* Define limits and offset of request
*
* @param int $limit Maximum number of lines returned (-1=conf->liste_limit, 0=no limit)
* @param int $offset Numero of line from where starting fetch
* @return string String with SQL syntax to add a limit and offset
*/
function plimit($limit=0,$offset=0)
{
global $conf;
if (empty($limit)) return "";
if ($limit < 0) $limit=$conf->liste_limit;
if ($offset > 0) return " LIMIT $offset,$limit ";
else return " LIMIT $limit ";
}
/**
* Return version of database server into an array
*
* @return array Version array
*/
function getVersionArray()
{
return preg_split("/[\.,-]/",$this->getVersion());
}
/**
* Return label of manager
*
* @return string Label
*/
function getLabel()
{
return $this->label;
}
/**
* Return last request executed with query()
*
* @return string Last query
*/
function lastquery()
{
return $this->lastquery;
}
/**
* Define sort criteria of request
*
* @param string $sortfield List of sort fields
* @param string $sortorder Sort order
* @return string String to provide syntax of a sort sql string
*/
function order($sortfield=0,$sortorder=0)
{
if ($sortfield)
{
$return='';
$fields=explode(',',$sortfield);
foreach($fields as $val)
{
if (! $return) $return.=' ORDER BY ';
else $return.=',';
$return.=preg_replace('/[^0-9a-z_\.]/i','',$val);
if ($sortorder) $return.=' '.preg_replace('/[^0-9a-z]/i','',$sortorder);
}
return $return;
}
else
{
return '';
}
}
/**
* Return last error label
*
* @return string Last error
*/
function lasterror()
{
return $this->lasterror;
}
/**
* Convert (by PHP) a PHP server TZ string date into a Timestamps date (GMT if gm=true)
* 19700101020000 -> 3600 with TZ+1 and gmt=0
* 19700101020000 -> 7200 whaterver is TZ if gmt=1
*
* @param string $string Date in a string (YYYYMMDDHHMMSS, YYYYMMDD, YYYY-MM-DD HH:MM:SS)
* @param int $gm 1=Input informations are GMT values, otherwise local to server TZ
* @return timestamp|string Date TMS
*/
function jdate($string, $gm=false)
{
$string=preg_replace('/([^0-9])/i','',$string);
$tmp=$string.'000000';
$date=dol_mktime(substr($tmp,8,2),substr($tmp,10,2),substr($tmp,12,2),substr($tmp,4,2),substr($tmp,6,2),substr($tmp,0,4),$gm);
return $date;
}
/**
* Return last query in error
*
* @return string lastqueryerror
*/
function lastqueryerror()
{
return $this->lastqueryerror;
}
}