egroupware_official/addressbook/inc/class.contacts_sql.inc.php

<?php
/**************************************************************************\
* phpGroupWare API - Accounts manager for SQL                              *
* This file written by Joseph Engo <jengo@phpgroupware.org>                *
* View and manipulate contact records using SQL                            *
* Copyright (C) 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 acl
	 @abstract Contact List System
	 @discussion Author: jengo/Milosch <br>
	 This class provides a contact database scheme. <br>
	 It attempts to be based on the vcard 2.1 standard, with mods as needed to make for more reasonable sql storage. <br>
	 Syntax: CreateObject('phpgwapi.contacts'); <br>
	 Example1: $contacts = CreateObject('phpgwapi.contacts');
	*/
	class contacts_
	{
		var $db;
		var $std_table='phpgw_addressbook';
		var $ext_table='phpgw_addressbook_extra';

		var $account_id;
		var $stock_contact_fields;	// This is an array of almost the fields in the phpgw_addressbook table, except id,owner,lid,tid,access,cat_id
		var $non_contact_fields;    // Here are the rest
		var $email_types;           // VCard email type array
		var $total_records;         // This will contain numrows for data retrieved
		var $grants;                // This holds all of the users that have granted access to there entrys

		function contacts_($useacl=True)
		{
			global $phpgw, $phpgw_info;

			$this->db         = $phpgw->db;
			if($useacl)
			{
				$this->grants = $phpgw->acl->get_grants('addressbook');
			}
			$this->account_id = $phpgw_info['user']['account_id'];

			// The left side are the array elements used throughout phpgw, right side are the db field names.
			$this->stock_contact_fields = array(
				'fn'                     => 'fn',        // 'prefix given middle family suffix'
				'n_given'                => 'n_given',   // firstname
				'n_family'               => 'n_family',  // lastname
				'n_middle'               => 'n_middle',
				'n_prefix'               => 'n_prefix',
				'n_suffix'               => 'n_suffix',
				'sound'                  => 'sound',
				'bday'                   => 'bday',
				'note'                   => 'note',
				'tz'                     => 'tz',
				'geo'                    => 'geo',
				'url'                    => 'url',
				'pubkey'                 => 'pubkey',

				'org_name'               => 'org_name',  // company
				'org_unit'               => 'org_unit',  // division
				'title'                  => 'title',

				'adr_one_street'         => 'adr_one_street',
				'adr_one_locality'       => 'adr_one_locality', 
				'adr_one_region'         => 'adr_one_region', 
				'adr_one_postalcode'     => 'adr_one_postalcode',
				'adr_one_countryname'    => 'adr_one_countryname',
				'adr_one_type'           => 'adr_one_type', // address is domestic/intl/postal/parcel/work/home
				'label'                  => 'label', // address label

				'adr_two_street'         => 'adr_two_street',
				'adr_two_locality'       => 'adr_two_locality', 
				'adr_two_region'         => 'adr_two_region', 
				'adr_two_postalcode'     => 'adr_two_postalcode',
				'adr_two_countryname'    => 'adr_two_countryname',
				'adr_two_type'           => 'adr_two_type', // address is domestic/intl/postal/parcel/work/home

				'tel_work'               => 'tel_work',
				'tel_home'               => 'tel_home',
				'tel_voice'              => 'tel_voice',
				'tel_fax'                => 'tel_fax', 
				'tel_msg'                => 'tel_msg',
				'tel_cell'               => 'tel_cell',
				'tel_pager'              => 'tel_pager',
				'tel_bbs'                => 'tel_bbs',
				'tel_modem'              => 'tel_modem',
				'tel_car'                => 'tel_car',
				'tel_isdn'               => 'tel_isdn',
				'tel_video'              => 'tel_video',
				'tel_prefer'             => 'tel_prefer', // home, work, voice, etc
				'email'                  => 'email',
				'email_type'             => 'email_type', //'INTERNET','CompuServe',etc...
				'email_home'             => 'email_home',
				'email_home_type'        => 'email_home_type' //'INTERNET','CompuServe',etc...
			);

			$this->non_contact_fields = array(
				'id'     => 'id',
				'lid'    => 'lid',
				'tid'    => 'tid',
				'cat_id' => 'cat_id',
				'access' => 'access',
				'owner'  => 'owner'
			);

			/* Used to flag an address as being:
			   domestic OR  international(default)
			   parcel(default)
			   postal(default)
			*/
			$this->adr_types = array(
				'dom'    => lang('Domestic'),
				'intl'   => lang('International'),
				'parcel' => lang('Parcel'),
				'postal' => lang('Postal')
			);

			// Used to set preferred number field
			$this->tel_types = array(
				'work'  => 'work',
				'home'  => 'home',
				'voice' => 'voice',
				'fax'   => 'fax',
				'msg'   => 'msg',
				'cell'  => 'cell',
				'pager' => 'pager',
				'bbs'   => 'bbs',
				'modem' => 'modem',
				'car'   => 'car',
				'isdn'  => 'isdn',
				'video' => 'video'
			);

			// Used to set email_type fields
			$this->email_types = array(
				'INTERNET'   => 'INTERNET',
				'CompuServe' => 'CompuServe',
				'AOL'        => 'AOL',
				'Prodigy'    => 'Prodigy',
				'eWorld'     => 'eWorld',
				'AppleLink'  => 'AppleLink',
				'AppleTalk'  => 'AppleTalk',
				'PowerShare' => 'PowerShare',
				'IBMMail'    => 'IBMMail',
				'ATTMail'    => 'ATTMail',
				'MCIMail'    => 'MCIMail',
				'X.400'      => 'X.400',
				'TLX'        => 'TLX'
			);
		}

		// send this the id and whatever fields you want to see
		function read_single_entry($id,$fields="")
		{
			if (!$fields || empty($fields)) { $fields = $this->stock_contact_fields; }
			list($stock_fields,$stock_fieldnames,$extra_fields) =
				$this->split_stock_and_extras($fields);

			if (count($stock_fieldnames))
			{
				$t_fields = "," . implode(",",$stock_fieldnames);
				if ($t_fields == ",")
				{
					unset($t_fields);
				}
			}

			$this->db2 = $this->db;
 
			$this->db->query("select id,lid,tid,owner,access,cat_id $t_fields from $this->std_table WHERE id='$id'");
			$this->db->next_record();

			$return_fields[0]['id']        = $this->db->f('id'); // unique id
			$return_fields[0]['lid']       = $this->db->f('lid'); // lid for group/account records
			$return_fields[0]['tid']       = $this->db->f('tid'); // type id (g/u) for groups/accounts
			$return_fields[0]['owner']     = $this->db->f('owner'); // id of owner/parent for the record
			$return_fields[0]['access']    = $this->db->f('access'); // public/private
			$return_fields[0]['cat_id']    = $this->db->f('cat_id');

			if (gettype($stock_fieldnames) == 'array')
			{
				while (list($f_name) = each($stock_fieldnames))
				{
					$return_fields[0][$f_name] = $this->db->f($f_name);
				}
			}

			// Setup address type fields
			if ($this->db->f('adr_one_type'))
			{
				$one_type = $this->db->f('adr_one_type');
				reset($this->adr_types);
				while (list($name,$val) = each($this->adr_types))
				{
					eval("if (strstr(\$one_type,\$name)) { \$return_fields[0][\"one_\$name\"] = \"on\"; }");
				}
			}
			if ($this->db->f('adr_two_type'))
			{
				$two_type = $this->db->f('adr_two_type');
				reset($this->adr_types);
				while (list($name,$val) = each($this->adr_types))
				{
					eval("if (strstr(\$two_type,\$name)) { \$return_fields[0][\"two_\$name\"] = \"on\"; }");
				}
			}

			$this->db2->query("SELECT contact_name,contact_value FROM $this->ext_table where contact_id='" . $this->db->f("id") . "'",__LINE__,__FILE__);
			while ($this->db2->next_record())
			{
				// If its not in the list to be returned, don't return it.
				// This is still quicker then 5(+) separate queries
				if ($extra_fields[$this->db2->f('contact_name')])
				{
					$return_fields[0][$this->db2->f('contact_name')] = $this->db2->f('contact_value');
				}
			}
			return $return_fields;
		}

		function read_last_entry($fields='')
		{
			if (!$fields || empty($fields)) { $fields = $this->stock_contact_fields; }
			list($stock_fields,$stock_fieldnames,$extra_fields) =
				$this->split_stock_and_extras($fields);

			if (count($stock_fieldnames))
			{
				$t_fields = "," . implode(",",$stock_fieldnames);
				if ($t_fields == ",")
				{
					unset($t_fields);
				}
			}

			$this->db2 = $this->db;

			$this->db->query('SELECT max(id) FROM '.$this->std_table,__LINE__,__FILE__);
			$this->db->next_record();

			$id = $this->db->f(0);

			$this->db->query("SELECT id,lid,tid,owner,access,cat_id $t_fields from $this->std_table WHERE id='$id'",__LINE__,__FILE__);
			$this->db->next_record();

			$return_fields[0]['id']		= $this->db->f('id');
			$return_fields[0]['lid']    = $this->db->f('lid');
			$return_fields[0]['tid']    = $this->db->f('tid');
			$return_fields[0]['owner']  = $this->db->f('owner');
			$return_fields[0]['access'] = $this->db->f('access'); // public/private
			$return_fields[0]['cat_id'] = $this->db->f('cat_id');

			if (gettype($stock_fieldnames) == 'array')
			{
				while (list($f_name) = each($stock_fieldnames))
				{
					$return_fields[0][$f_name] = $this->db->f($f_name);
				}
			}

			// Setup address type fields
			if ($this->db->f('adr_one_type'))
			{
				$one_type = $this->db->f('adr_one_type');
				reset($this->adr_types);
				while (list($name,$val) = each($this->adr_types))
				{
					eval("if (strstr(\$one_type,\$name)) { \$return_fields[0][\"one_\$name\"] = \"on\"; }");
				}
			}
			if ($this->db->f('adr_two_type'))
			{
				$two_type = $this->db->f('adr_two_type');
				reset($this->adr_types);
				while (list($name,$val) = each($this->adr_types))
				{
					eval("if (strstr(\$two_type,\$name)) { \$return_fields[0][\"two_\$name\"] = \"on\"; }");
				}
			}

			$this->db2->query("select contact_name,contact_value from $this->ext_table where contact_id='" . $this->db->f("id") . "'",__LINE__,__FILE__);
			while ($this->db2->next_record())
			{
				// If its not in the list to be returned, don't return it.
				// This is still quicker then 5(+) separate queries
				if ($extra_fields[$this->db2->f('contact_name')])
				{
					$return_fields[0][$this->db2->f('contact_name')] = $this->db2->f('contact_value');
				}
			}
			return $return_fields;
		}

		// send this the range, query, sort, order and whatever fields you want to see
		function read($start=0,$offset=0,$fields="",$query="",$filter="",$sort="",$order="")
		{
			global $phpgw,$phpgw_info;

			if (!$fields || empty($fields)) { $fields = $this->stock_contact_fields; }
			$DEBUG = 1;

			list($stock_fields,$stock_fieldnames,$extra_fields) = $this->split_stock_and_extras($fields);
			if (count($stock_fieldnames))
			{
				$t_fields = "," . implode(",",$stock_fieldnames);
				if ($t_fields == ",")
				{
					unset($t_fields);
				}
			}

			// turn filter's a=b,c=d OR a=b into an array
			if ($filter) {
				$extra_stock = array(
					'id'     => 'id',
					'tid'    => 'tid',
					'lid'    => 'lid',
					'owner'  => 'owner',
					'access' => 'access',
					'cat_id' => 'cat_id'
				);
				$check_stock = $this->stock_contact_fields + $extra_stock;

				if ($DEBUG) { echo "DEBUG - Inbound filter is: #".$filter."#"; }
				$filterarray = split(',',$filter);
				if ($filterarray[1])
				{
					$i=0;
					for ($i=0;$i<count($filterarray);$i++)
					{
						list($name,$value) = split("=",$filterarray[$i]);
						if ($name)
						{
							if ($DEBUG) { echo "<br>DEBUG - Filter intermediate strings 1: #".$name."# => #".$value."#"; }
							$filterfields[$name] = $value;
						}
					}
				}
				else
				{
					list($name,$value) = split('=',$filter);
					if ($DEBUG)
					{
						echo "<br>DEBUG - Filter intermediate strings 1: #".$name."# => #".$value."#";
					}
					$filterfields = array($name => $value);
				}

				// now check each element of the array and convert into SQL for queries
				// below
				$i=0;
				reset($filterfields);
				while (list($name,$value) = each($filterfields))
				{
					if ($DEBUG) { echo "<br>DEBUG - Filter intermediate strings 2: #".$name."# => #".$value."#"; }
					$isstd=0;
					if ($name && empty($value))
					{
						if ($DEBUG) { echo "<br>DEBUG - filter field '".$name."' is empty (NULL)"; }
						while (list($fname,$fvalue)=each($check_stock))
						{
							if ($fvalue==$name)
							{
								$filterlist .= $name.' is NULL,';
								if ($DEBUG) { echo "<br>DEBUG - filter field '".$name."' is a stock field"; }
								break;
							}
						}
					}
					elseif($name && $value)
					{
						reset($check_stock);
						while (list($fname,$fvalue)=each($check_stock))
						{
							if ($fvalue==$name)
							{
								if ($name == 'cat_id')
								{
									// This is the alternative to CONCAT, since it is mysql-only
									$filterlist .= "(" . $name . " LIKE '%," . $value . ",%' OR " . $name."=".$value.");";
								}
								elseif (gettype($value) == "integer")
								{
									$filterlist .= $name."=".$value.";";
								}
								else
								{
									$filterlist .= $name."='".$value."';";
								}
								break;
							}
						}
					}
					$i++;
				}
				$filterlist  = substr($filterlist,0,-1);
				$filterlist  = ereg_replace(";"," AND ",$filterlist);
				
				// echo "<p>contacts->read(): filterlist=\"$filterlist\" -->";	// allow multiple (','-separated) cat's per address
				//$filterlist = ereg_replace('cat_id=[\']*([0-9]+)[\']*',"CONCAT(',',cat_id,',') LIKE '%,\\1,%'",$filterlist);
				// echo "\"$filterlist\"</p>\n";
				// Oops, CONCAT is mysql-only, this is now handled explicitly above for cat_id

				if ($DEBUG)
				{
					echo "<br>DEBUG - Filter output string: #".$filterlist."#";
				}

				if ($filterlist)
				{
					$filtermethod = '('.$filterlist.') ';
					$fwhere = ' WHERE '; $fand = ' AND ';
				}
			}
			else
			{
				$filtermethod = " AND (tid='n' OR tid is null)";
			}

			if (!$filtermethod)
			{
				if($phpgw_info['user']['account_id'])
				{
					$fwhere .= " (owner=" . $phpgw_info['user']['account_id'];
					$fand   .= " (owner=" . $phpgw_info['user']['account_id'];
				}
			}
			else
			{
				if($phpgw_info['user']['account_id'])
				{
					$fwhere .= $filtermethod . " AND (owner=" . $phpgw_info['user']['account_id'];
					$fand   .= $filtermethod . " AND (owner=" . $phpgw_info['user']['account_id'];
				}
				else
				{
					$filtermethod = substr($filtermethod,0,-2);
					$fwhere .= $filtermethod;
					$fand   .= $filtermethod;
				}
			}

			if (is_array($this->grants))
			{
				$grants = $this->grants;
				while (list($user) = each($grants))
				{
					$public_user_list[] = $user;
				}
				reset($public_user_list);
				$fwhere .= " OR (access='public' AND owner in(" . implode(',',$public_user_list) . "))) ";
				$fand   .= " OR (access='public' AND owner in(" . implode(',',$public_user_list) . "))) ";
			}
			else
			{
				$fwhere .= ') '; $fand .= ') ';
			}

			if ($DEBUG && $filtermethod)
			{
				echo "<br>DEBUG - Filtering with: #" . $filtermethod . "#";
			}

			if (!$sort) { $sort = "ASC"; }

			if ($order)
			{
				$ordermethod = "order by $order $sort ";
			}
			else
			{
				$ordermethod = "order by n_family,n_given,email $sort";
			}

			if ($DEBUG && $ordermethod)
			{
				echo "<br>DEBUG - $ordermethod";
			}
			
			$filtermethod = "";
			
			// This logic allows you to limit rows, or not.
			// The export feature, for example, does not limit rows.
			// This way, it can retrieve all rows at once.
			if ($start && $offset) {
				$limit = $this->db->limit($start,$offset);
			} elseif ($start && !$offset) {
				$limit = "";
			} elseif(!$start && !$offset) {
				$limit = "";
			} else { #(!$start && $offset) {
				$start = 0;
				$limit = $this->db->limit($start,$offset);
			}

			$this->db3 = $this->db2 = $this->db; // Create new result objects before our queries

			if ($query)
			{
				$this->db3->query("SELECT * FROM $this->std_table WHERE (bday LIKE '%$query%' OR n_family LIKE '"
					. "%$query%' OR n_given LIKE '%$query%' OR email LIKE '%$query%' OR "
					. "adr_one_street LIKE '%$query%' OR adr_one_locality LIKE '%$query%' OR adr_one_region LIKE '%$query%' OR "
					. "adr_one_postalcode LIKE '%$query%' OR adr_one_countryname LIKE '%$query%' OR "
					. "adr_two_street LIKE '%$query%' OR adr_two_locality LIKE '%$query%' OR adr_two_region LIKE '%$query%' OR "
					. "adr_two_postalcode LIKE '%$query%' OR adr_two_countryname LIKE '%$query%' OR "
					. "org_name LIKE '%$query%' OR org_unit LIKE '%$query%') " . $fand . $filtermethod . $ordermethod,__LINE__,__FILE__); 
				$this->total_records = $this->db3->num_rows();

				$this->db->query("SELECT * FROM $this->std_table WHERE (bday LIKE '%$query%' OR n_family LIKE '"
					. "%$query%' OR n_given LIKE '%$query%' OR email LIKE '%$query%' OR "
					. "adr_one_street LIKE '%$query%' OR adr_one_locality LIKE '%$query%' OR adr_one_region LIKE '%$query%' OR "
					. "adr_one_postalcode LIKE '%$query%' OR adr_one_countryname LIKE '%$query%' OR "
					. "adr_two_street LIKE '%$query%' OR adr_two_locality LIKE '%$query%' OR adr_two_region LIKE '%$query%' OR "
					. "adr_two_postalcode LIKE '%$query%' OR adr_two_countryname LIKE '%$query%' OR "
					. "org_name LIKE '%$query%' OR org_unit LIKE '%$query%') " . $fand . $filtermethod . $ordermethod . " "
					. $limit,__LINE__,__FILE__);
			}
			else
			{
				$this->db3->query("SELECT id,lid,tid,owner,access,cat_id $t_fields FROM $this->std_table " . $fwhere
					. $filtermethod,__LINE__,__FILE__);
				$this->total_records = $this->db3->num_rows();

				$this->db->query("SELECT id,lid,tid,owner,access,cat_id $t_fields FROM $this->std_table " . $fwhere
				. $filtermethod . " " . $ordermethod . " " . $limit,__LINE__,__FILE__);
			}

			if ($DEBUG) { echo "<br>SELECT id,lid,tid,owner,access,cat_id $t_fields FROM $this->std_table " . $fwhere . $filtermethod; }

			$i=0;
			while ($this->db->next_record())
			{
				// unique id, lid for group/account records,
				// type id (g/u) for groups/accounts, and
				// id of owner/parent for the record
				$return_fields[$i]['id']     = $this->db->f('id');
				$return_fields[$i]['lid']    = $this->db->f('lid');
				$return_fields[$i]['tid']    = $this->db->f('tid');
				$return_fields[$i]['owner']  = $this->db->f('owner');
				$return_fields[$i]['access'] = $this->db->f('access'); // public/private
				$return_fields[$i]['cat_id'] = $this->db->f('cat_id');

				if (gettype($stock_fieldnames) == 'array')
				{
					while (list($f_name) = each($stock_fieldnames))
					{
						$return_fields[$i][$f_name] = $this->db->f($f_name);
					}
					reset($stock_fieldnames);
				}
				$this->db2->query("SELECT contact_name,contact_value FROM $this->ext_table WHERE contact_id='"
					. $this->db->f("id") . "'" .$filterextra,__LINE__,__FILE__);
				while ($this->db2->next_record())
				{
					// If its not in the list to be returned, don't return it.
					// This is still quicker then 5(+) separate queries
					if ($extra_fields[$this->db2->f('contact_name')])
					{
						$return_fields[$i][$this->db2->f('contact_name')] = $this->db2->f('contact_value');
					}
				}
				$i++;
			}
			return $return_fields;
		}

		function add($owner,$fields,$access='',$cat_id='',$tid='n')
		{
			list($stock_fields,$stock_fieldnames,$extra_fields) = $this->split_stock_and_extras($fields);

			//$this->db->lock(array("contacts"));
			if ($fields['lid'])
			{
				$lid[0] = 'lid,';
				$lid[1] = $fields['lid']."','";
			}
			$this->db->query("insert into $this->std_table (owner,access,cat_id,tid,".$lid[0]
				. implode(",",$this->stock_contact_fields)
				. ") values ('$owner','$access','$cat_id','$tid','".$lid[1]
				. implode("','",$this->loop_addslashes($stock_fields)) . "')",__LINE__,__FILE__);

			$this->db->query("select max(id) from $this->std_table ",__LINE__,__FILE__);
			$this->db->next_record();
			$id = $this->db->f(0);
			//$this->db->unlock();
			if (count($extra_fields))
			{
				while (list($name,$value) = each($extra_fields))
				{
					$this->db->query("insert into $this->ext_table values ('$id','" . $this->account_id . "','"
						. addslashes($name) . "','" . addslashes($value) . "')",__LINE__,__FILE__);
				}
			}
		}

		function field_exists($id,$field_name)
		{
			$this->db->query("select count(*) from $this->ext_table where contact_id='$id' and contact_name='"
			. addslashes($field_name) . "'",__LINE__,__FILE__);
			$this->db->next_record();
			return $this->db->f(0);
		}

		function add_single_extra_field($id,$owner,$field_name,$field_value)
		{
			$this->db->query("insert into $this->ext_table values ($id,'$owner','" . addslashes($field_name)
			. "','" . addslashes($field_value) . "')",__LINE__,__FILE__);
		}

		function delete_single_extra_field($id,$field_name)
		{
			$this->db->query("delete from $this->ext_table where contact_id='$id' and contact_name='"
			. addslashes($field_name) . "'",__LINE__,__FILE__);
		}

		function update($id,$owner,$fields,$access='',$cat_id='',$tid='n')
		{
			// First make sure that id number exists
			$this->db->query("select count(*) from $this->std_table where id='$id'",__LINE__,__FILE__);
			$this->db->next_record();
			if (!$this->db->f(0))
			{
				return False;
			}

			list($stock_fields,$stock_fieldnames,$extra_fields) = $this->split_stock_and_extras($fields);
			if (count($stock_fields))
			{
				while (list($stock_fieldname) = each($stock_fieldnames))
				{
					$ta[] = $stock_fieldname . "='" . addslashes($stock_fields[$stock_fieldname]) . "'";
				}
				$fields_s = "," . implode(",",$ta);
				if ($field_s == ",")
				{
					unset($field_s);
				}
				$this->db->query("update $this->std_table set access='$access',cat_id='$cat_id', tid='$tid' $fields_s where "
					. "id='$id'",__LINE__,__FILE__);
			}

			while (list($x_name,$x_value) = each($extra_fields))
			{
				if ($this->field_exists($id,$x_name))
				{
					if (!$x_value)
					{
						$this->delete_single_extra_field($id,$x_name);
					}
					else
					{
						$this->db->query("update $this->ext_table set contact_value='" . addslashes($x_value)
						. "',contact_owner='$owner' where contact_name='" . addslashes($x_name)
						. "' and contact_id='$id'",__LINE__,__FILE__);
					}
				}
				else
				{
					$this->add_single_extra_field($id,$owner,$x_name,$x_value);
				}
			}
		}

		// Used by admin to change ownership on account delete
		function change_owner($old_owner='',$new_owner='')
		{
			if (!($new_owner && $old_owner))
			{
				return False;
			}

			$this->db->query("update $this->std_table set owner='$new_owner' WHERE owner=$old_owner",__LINE__,__FILE__);
			$this->db->query("update $this->ext_table set contact_owner='$new_owner' WHERE contact_owner=$old_owner",__LINE__,__FILE__);

			return;
		}

		// This is where the real work of delete() is done, shared class file contains calling function
		function delete_($id)
		{
			$this->db->query("delete from $this->std_table where id='$id'",__LINE__,__FILE__);
			$this->db->query("delete from $this->ext_table where contact_id='$id'",__LINE__,__FILE__);
		}

		// This is for the admin script deleteaccount.php
		function delete_all($owner=0)
		{
			if ($owner)
			{
				$this->db->query("DELETE FROM $this->std_table WHERE owner=$owner",__LINE__,__FILE__);
				$this->db->query("DELETE FROM $this->ext_table WHERE contact_owner=$owner",__LINE__,__FILE__);
			}
			return;
		}
	}
?>