<?PHP
/* Copyright (C) 2001      Fabien Seisen        <seisen@linuxfr.org>
 * Copyright (C) 2002-2004 Rodolphe Quiedeville <rodolphe@quiedeville.org>
 * Copyright (C) 2004      Laurent Destailleur  <eldy@users.sourceforge.net>
 *
 * $Id$
 * $Source$
 *
 * 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.
 *
 */

class DoliDb {
  var $db, $results, $ok, $connected, $database_selected;

  Function DoliDb($type = 'mysql', $host = '', $user = '', $pass = '', $name = '') 
  // Se connecte au serveur et éventuellement à une base (si spécifié)
  // Renvoie 1 en cas de succès, 0 sinon
    {
      global $conf; 

	  if ($host == '')
		{
		$host = $conf->db->host;
		}
		
	  if ($user == '')
		{
		$user = $conf->db->user;
		}
		
	  if ($pass == '')
		{
		$pass = $conf->db->pass;
		}
		
	  if ($name == '')
		{
		$name = $conf->db->name;
		}
		
	  //print "Name DB: $host,$user,$pass,$name<br>";

	  // Essai connexion serveur
	  $this->db = $this->connect($host, $user, $pass);
	  if ($this->db)
		{
			$this->connected = 1;
			$this->ok = 1;
		}
	  else
		{
			$this->connected = 0;
			$this->ok = 0;
		}
	
	  // Si connexion serveur ok et si connexion base demandée, on essaie connexion base
      if ($this->connected && $name) {
    
		if ($this->select_db($name) == 1)
		{
			$this->database_selected = 1;
			$this->ok = 1;
		}
		else
		{
			$this->database_selected = 0;
			$this->ok = 0;
		}

      }
      else {
      		// Pas de selection de base demandée, mais tout est ok
			$this->database_selected = 0;
			$this->ok = 1;
      }

      return $this->ok;
    }
  /*
   *
   */
  Function select_db($database)
    {
      return mysql_select_db($database, $this->db);
    }
  /*
   *
   */
  Function connect($host, $login, $passwd)
    {
      $this->db  = @mysql_connect($host, $login, $passwd);
      //print "Resultat fonction connect: ".$this->db;
      return $this->db;
    }
  /*
   *
   */  
  Function create_db($database)
  {
    if (mysql_create_db ($database, $this->db))
      {
	return 1;
      }
    else
      {
	return 0;
      }
  }
  /*
   *
   */
  Function clone()
    {
      $db2 = new DoliDb("", "", "", "", "");
      $db2->db = $this->db;
      return $db2;
    }

  Function pconnect($host, $login, $passwd)
    {
      $this->db  = mysql_pconnect($host, $login, $passwd);
      return $this->db;
    }

  Function close()
  {
    return mysql_close($this->db);
  }

  Function begin($do=1)
  {
    if ($do)
      {
	return $this->query("BEGIN");
      }
    else
      {
	return 1;
      }
  }

  Function commit($do=1)
  {
    if ($do)
      {
	return $this->query("COMMIT");
      }
    else
      {
	return 1;
      }
  }

  Function rollback($do=1)
  {
    if ($do)
      {
	return $this->query("ROLLBACK");
      }
    else
      {
	return 1;
      }
  }

  Function query($query, $limit="", $offset="")
    {
      $query = trim($query);
      //print "<p>$query</p>\n";
      $this->results = mysql_query($query, $this->db);
      return $this->results;
    }

  /*
   *
   */
  Function list_tables($database)
  {
    $this->results = mysql_list_tables($database, $this->db);
    return  $this->results;
  }


  Function result($nb, $fieldname)
    {
      return mysql_result($this->results, $nb, $fieldname);
    }
  
  Function free()
    {
      return mysql_free_result($this->results);
    }

  Function fetch_object()
    {
      return mysql_fetch_object($this->results);
  }
  
  Function plimit($limit=0,$offset=0)
    {
      if ($offset > 0) {
	return " LIMIT $offset,$limit ";
      } else {
	return " LIMIT $limit ";
      }
    }

  Function pdate($fname)
    {
      return "unix_timestamp($fname)";
    }
  
  Function idate($fname)
    {
      return strftime("%Y%m%d%H%M%S",$fname);
    }

  Function fetch_array()
    {
      return mysql_fetch_array($this->results);
    }

  Function fetch_row()
    {
      return mysql_fetch_row($this->results);
    }

  Function fetch_field()
    {
      return mysql_fetch_field($this->results);
    }

  Function num_rows()
    {
      return mysql_num_rows($this->results);
    }

  Function num_fields()
    {
      return mysql_num_fields($this->results);
    }

  Function error()
    {
      return mysql_error($this->db);
    }

  Function errno()
    {
	  // 1050 Table already exists
	  // 1062 Duplicate key
      return mysql_errno($this->db);
    }

  Function last_insert_id()
    {
      return mysql_insert_id();
    }

  Function affected_rows()
    {
      return mysql_affected_rows();
    }

}

?>