<?php
  /**************************************************************************\
  * phpGroupWare API - Categories                                            *
  * This file written by Joseph Engo <jengo@phpgroupware.org>                *
  * Category manager                                                         *
  * Copyright (C) 2000, 2001 Joseph Engo                                     *
  * -------------------------------------------------------------------------*
  * This library is part of the phpGroupWare API                             *
  * http://www.phpgroupware.org/api                                          * 
  * ------------------------------------------------------------------------ *
  * This library is free software; you can redistribute it and/or modify it  *
  * under the terms of the GNU Lesser General Public License as published by *
  * the Free Software Foundation; either version 2.1 of the License,         *
  * or any later version.                                                    *
  * This library 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 Lesser General Public License for more details.              *
  * You should have received a copy of the GNU Lesser General Public License *
  * along with this library; if not, write to the Free Software Foundation,  *
  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA            *
  \**************************************************************************/

  /* $Id$ */

  class categories
  {
     var $account_id;
     var $app_name;
     var $cats;
     var $db;

     function filter($type)
     {
        switch ($type)
        {
           case 'subs':  $s = " and cat_parent != '0'"; break;
           case 'mains': $s = " and cat_parent = '0'"; break;
        }
        return $s;
     }

     function return_array($type = 'all', $id = '')
     {
        $filter = $this->filter($type);

        if ($type == 'single') {
           $filter = " and cat_id='$id'";
        }

        $this->db->query("select * from phpgw_categories where cat_appname='"
                       . $this->app_name . "' $filter",__LINE__,__FILE__);
        $i = 0;
        while ($this->db->next_record()) {
           $cats[$i]['id']          = $this->db->f('cat_id');
           $cats[$i]['owner']       = $this->db->f('cat_owner');
           $cats[$i]['parent']      = $this->db->f('cat_parent');
           $cats[$i]['name']        = $this->db->f('cat_name');
           $cats[$i]['description'] = $this->db->f('cat_description');
           $cats[$i]['data']        = $this->db->f('cat_data');
           $i++;
        }
        return $cats;
     }

     function categories($account_id = '',$app_name = '')
     {
        global $phpgw, $phpgw_info;

        if (! $account_id) {
           $account_id = $phpgw_info['user']['account_id'];
        }
        if (! $app_name) {
           $app_name   = $phpgw_info['flags']['currentapp'];
        }

        $this->account_id = $account_id;
        $this->app_name   = $app_name;
        $this->db         = $phpgw->db;
        $this->cats       = $this->return_array();
     }

     // Return into a select box, list or other formats
     function formated_list($format,$type,$selected = "")
     {
        global $phpgw;
        $filter = $this->filter($type);

        if ($format == 'select') {
           $this->db->query("select * from phpgw_categories where cat_appname='" . $this->app_name
                           . "' $filter",__LINE__,__FILE__);
           while ($this->db->next_record()) {
              $s .= '<option value="' . $this->db->f('cat_id') . '"';
              if ($this->db->f('cat_id') == $selected) {
                 $s .= ' selected';
              }
              $s .= '>' . $phpgw->strip_html($this->db->f('cat_name'))
                  . '</option>';
           }
           return $s;
        }

     }

     function add($cat_name,$cat_parent,$cat_description = '', $cat_data = '')
     {
        $this->db->query('insert into phpgw_categories (cat_parent,cat_owner,cat_appname,cat_name,'
                       . "cat_description,cat_data) values ('$cat_parent','" . $this->account_id . "','"
                       . $this->app_name . "','" . addslashes($cat_name) . "','" . addslashes($cat_description)
                       . "','$cat_data')",__LINE__,__FILE__);
     }

     function delete($cat_id)
     {
        $this->db->query("delete from phpgw_categories where cat_id='$cat_id' and cat_appname='"
                  . $this->app_name . "'",__LINE__,__FILE__);
     }

     function edit($cat_id,$cat_parent,$cat_name,$cat_description = '',$cat_data = '')
     {
         $this->db->query("update phpgw_categories set cat_name='" . addslashes($cat_name) . "', "
                        . "cat_description='" . addslashes($cat_description) . "', cat_data='"
                        . "$cat_data', cat_parent='$cat_parent' where cat_appname='"
                        . $this->app_name . "' and cat_id='$cat_id'",__LINE__,__FILE__);
     }

     function return_name($cat_id)
     {
         $this->db->query("select cat_name from phpgw_categories where cat_id='"
                        . "$cat_id'",__LINE__,__FILE__);
         $this->db->next_record();
         if ($this->db->f('cat_name')) {
            return $this->db->f('cat_name');
         } else {
            return '--';
         }
     }

     function exists($type,$cat_name)
     {
        $filter = $this->filter($type);

        $this->db->query("select count(*) from phpgw_categories where cat_name='"
                       . addslashes($cat_name) . "' and cat_appname='"
                       . $this->app_name . "' $filter",__LINE__,__FILE__);
        $this->db->next_record();
        if ($this->db->f(0)) {
           return True;
        } else {
           return False;
        }
     }
  }
?>