<?php
/* Copyright (c) 2005 Rodolphe Quiedeville <rodolphe@quiedeville.org>
 * Copyright (c) 2005 Laurent Destailleur  <eldy@users.sourceforge.net>
 * 
 * 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.
 *
 * $Id$
 * $Source$
 */

/**	  
	 \file       htdocs/usergroup.class.php
	 \brief      Fichier de la classe des groupes d'utilisateur
	 \author     Rodolphe Qiedeville
	 \version    $Revision$
*/

/**    
       \class      UserGroup
       \brief      Classe permettant la gestion des groupes d'utilisateur
*/

class UserGroup
{
    var $db;
    
    var $id;
    var $nom;
    var $note;
    var $datec;
    var $datem;


  /**
   *    \brief Constructeur de la classe
   *    \param  $DB         handler accès base de données
   *    \param  $id         id du groupe (0 par défaut)
   */
	 
    function UserGroup($DB, $id=0)
    {
        $this->db = $DB;
        $this->id = $id;
        
        return 0;
    }


  /**
   *    \brief      Charge un objet user avec toutes ces caractéristiques
   *    \param      id      id du groupe à charger
   */
	 
    function fetch($id)
    {
        $this->id = $id;
    
        $sql  = "SELECT g.rowid, g.nom, g.note, g.datec, tms as datem";
        $sql .= " FROM ".MAIN_DB_PREFIX."usergroup as g";
        $sql .= " WHERE g.rowid = ".$this->id;
    
        $result = $this->db->query($sql);
    
        if ($result)
        {
            if ($this->db->num_rows($result))
            {
                $obj = $this->db->fetch_object($result);
    
                $this->id = $obj->rowid;
                $this->nom  = $obj->nom;
                $this->note = $obj->note;
                $this->datec = $obj->datec;
                $this->datem = $obj->datem;
            }
            $this->db->free($result);
    
        }
        else
        {
            dolibarr_syslog("UserGroup::Fetch Erreur");
        }
    
    }

  
  /**
   *    \brief      Ajoute un droit au groupe
   *    \param      rid         id du droit à ajouter
   *    \return     int         > 0 si ok, < 0 si erreur
   */
	 
    function addrights($rid)
    {
        if (strlen($rid) == 2)
        {
            $topid = substr($rid,0,1);
            $lowid = substr($rid,1,1);
        }
    
        if (strlen($rid) == 3)
        {
            $topid = substr($rid,0,2);
            $lowid = substr($rid,2,1);
        }
    
        if ($lowid == 1)
        {
            $sql = "DELETE FROM ".MAIN_DB_PREFIX."usergroup_rights WHERE fk_usergroup = $this->id AND fk_id=$rid";
            $this->db->query($sql);
            $sql = "INSERT INTO ".MAIN_DB_PREFIX."usergroup_rights (fk_usergroup, fk_id) VALUES ($this->id, $rid)";
            if ($this->db->query($sql))
            {
            }
        }
    
        if ($lowid > 1)
        {
    
            $sql = "DELETE FROM ".MAIN_DB_PREFIX."usergroup_rights WHERE fk_usergroup = $this->id AND fk_id=$rid";
            $this->db->query($sql);
            $sql = "INSERT INTO ".MAIN_DB_PREFIX."usergroup_rights (fk_usergroup, fk_id) VALUES ($this->id, $rid)";
            if ($this->db->query($sql))
            {
            }
    
            $nid = $topid . "1";
            $sql = "DELETE FROM ".MAIN_DB_PREFIX."usergroup_rights WHERE fk_usergroup = $this->id AND fk_id=$nid";
            $this->db->query($sql);
            $sql = "INSERT INTO ".MAIN_DB_PREFIX."usergroup_rights (fk_usergroup, fk_id) VALUES ($this->id, $nid)";
            if ($this->db->query($sql))
            {
    
            }
            else
            {
                dolibarr_print_error($this->db);
            }
        }
    
        if ($lowid == 0)
        {
            for ($i = 1 ; $i < 10 ; $i++)
            {
                $nid = $topid . "$i";
                $sql = "DELETE FROM ".MAIN_DB_PREFIX."usergroup_rights WHERE fk_usergroup = $this->id AND fk_id=$nid";
                $this->db->query($sql);
                $sql = "INSERT INTO ".MAIN_DB_PREFIX."usergroup_rights (fk_usergroup, fk_id) VALUES ($this->id, $nid)";
                if ($this->db->query($sql))
                {
    
                }
                else
                {
                    dolibarr_print_error($this->db);
                }
            }
        }
    
    
        return 1;
    }


  /**
   *    \brief      Retire un droit au groupe
   *    \param      rid        id du droit à retirer
   *    \return     int         > 0 si ok, < 0 si erreur
   */
	 
    function delrights($rid)
    {
        if (strlen($rid) == 2)
        {
            $topid = substr($rid,0,1);
            $lowid = substr($rid,1,1);
        }
    
        if (strlen($rid) == 3)
        {
            $topid = substr($rid,0,2);
            $lowid = substr($rid,2,1);
        }
    
        if ($lowid > 1)
        {
            $sql = "DELETE FROM ".MAIN_DB_PREFIX."usergroup_rights WHERE fk_usergroup = $this->id AND fk_id=$rid";
            if ($this->db->query($sql))
            {
            }
        }
    
        if ($lowid == 1)
        {
            $fid = $topid . "0";
            $lid = $topid . "9";
            $sql = "DELETE FROM ".MAIN_DB_PREFIX."usergroup_rights WHERE fk_usergroup = $this->id AND fk_id >= $fid AND fk_id <= $lid";
            if ($this->db->query($sql))
            {
    
            }
            else
            {
                dolibarr_print_error($this->db);
            }
        }
    
        if ($lowid == 0)
        {
            for ($i = 1 ; $i < 10 ; $i++)
            {
                $nid = $topid . "$i";
                $sql = "DELETE FROM ".MAIN_DB_PREFIX."usergroup_rights WHERE fk_usergroup = $this->id AND fk_id=$nid";
                if ($this->db->query($sql))
                {
    
                }
                else
                {
                    dolibarr_print_error($this->db);
                }
            }
        }
    
        return 1;
    }


  /**
   *    \brief      Charge dans l'objet group, la liste des permissions auquels le groupe a droit
   *    \param      module    nom du module dont il faut récupérer les droits ('' par defaut signifie tous les droits)
   */
	 
  function getrights($module='')
    {
      if ($this->all_permissions_are_loaded)
      {
        // Si les permissions ont déja été chargées, on quitte
        return;
      }

      /*
       * Récupération des droits
       */
      $sql = "SELECT r.module, r.perms, r.subperms ";
      $sql .= " FROM ".MAIN_DB_PREFIX."usergroup_rights as u, ".MAIN_DB_PREFIX."rights_def as r";
      $sql .= " WHERE r.id = u.fk_id AND u.fk_usergroup= $this->id AND r.perms IS NOT NULL";
      if ($this->db->query($sql))
	{
	  $num = $this->db->num_rows();
	  $i = 0;
	  while ($i < $num)
	    {
	      $row = $this->db->fetch_row();

	      if (strlen($row[1]) > 0)
		{

		  if (strlen($row[2]) > 0)
		    {
		      $this->rights->$row[0]->$row[1]->$row[2] = 1;
		    }
		  else
		    {
		      $this->rights->$row[0]->$row[1] = 1;
		    }

		}
	      $i++;
	    }
	}

        if ($module == '')
        {
          // Si module etait non defini, alors on a tout chargé, on peut donc considérer
          // que les droits sont en cache (car tous chargés) pour cet instance de user
          $this->all_permissions_are_loaded=1;
        }
        
    }

  /**
   *        \brief      Efface un groupe de la base
   *        \return     < 0 si erreur, > 0 si ok
   */
	 
  function delete()
  {
    $sql = "DELETE FROM ".MAIN_DB_PREFIX."usergroup";
    $sql .= " WHERE rowid = ".$this->id;
    $result=$this->db->query($sql);
    if ($result) 
    {
	    return 1;
    }
    else
    {
        dolibarr_print_error($this->db);
	    return -1;
    }
  }

  /**
   *        \brief      Crée un groupe en base
   *        \return     si erreur <0, si ok renvoie id groupe créé
   */
	 
  function create()
  {

    $sql = "INSERT into ".MAIN_DB_PREFIX."usergroup (datec,nom)";
    $sql .= " VALUES(now(),'$this->nom')";

    $result=$this->db->query($sql);
    if ($result)
    {
        $table =  "".MAIN_DB_PREFIX."usergroup";
        $this->id = $this->db->last_insert_id($table);

        if ($this->update() < 0) return -2;

        return $this->id;
    }
    else
    {
        dolibarr_syslog("UserGroup::Create");
        return -1;
    }
  }


  /**
   *    \brief      Mise à jour en base d'un utilisateur
   *    \return     <0 si echec, >=0 si ok
   */
  function update()
    {
        $sql = "UPDATE ".MAIN_DB_PREFIX."usergroup SET ";
        $sql .= " nom = '$this->nom',";
        $sql .= " note = '$this->note'";
        $sql .= " WHERE rowid = ".$this->id;

        $result = $this->db->query($sql);

        if ($result)
        {
            if ($this->db->affected_rows())
            {
                return 1;
            }
            return 0;
        }
        else
        {
            dolibarr_print_error($this->db);
            return -2;
        }

   }
   
}

?>