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<?php defined('SYSPATH') or die('No direct script access.');
/*
* This file is part of open source system FreenetIS
* and it is release under GPLv3 licence.
*
* More info about licence can be found:
* http://www.gnu.org/licenses/gpl-3.0.html
*
* More info about project can be found:
* http://www.freenetis.org/
*
*/

/**
* Allowed subnet enables member to use subnet
*
* @author Michal Kliment
* @package Model
*
* @property integer $id
* @property integer $member_id
* @property Member_Model $member
* @property integer $subnet_id
* @property Subnet_Model $subnet
* @property boolean $enabled
* @property datime $last_update
*/
class Allowed_subnet_Model extends ORM
{

protected $belongs_to = array('member');

/**
* Returns all allowed subnets of member
*
* @author Michal Kliment
* @param integer $member_id
* @param integer $order_by
* @param integer $order_by_direction
* @return Mysql_Result
*/
public function get_all_allowed_subnets_by_member(
$member_id, $order_by = 'id', $order_by_direction = 'ASC')
{
// order by direction check
if (strtolower($order_by_direction) != 'desc')
{
$order_by_direction = 'asc';
}
// query
return $this->db->query("
SELECT a.id, s.id AS subnet_id, s.name AS subnet_name, a.enabled,
network_address, netmask, INET_ATON(network_address) AS cidr,
CONCAT(
s.network_address,'/',
32-log2((~inet_aton(s.netmask) & 0xffffffff) + 1)
) AS cidr_address
FROM allowed_subnets a
LEFT JOIN subnets s ON a.subnet_id = s.id
WHERE a.member_id = ?
ORDER BY ".$this->db->escape_column($order_by)." $order_by_direction
", array($member_id));
}

/**
* Returns all enabled and allowed subnets of member
*
* @author Michal Kliment
* @param integer $member_id
* @return Mysql_Result
*/
public function get_all_enabled_allowed_subnets_by_member($member_id)
{
return $this->db->query("
SELECT a.id, s.id AS subnet_id, s.name AS subnet_name, a.enabled
FROM allowed_subnets a
LEFT JOIN subnets s ON a.subnet_id = s.id
WHERE a.member_id = ? AND enabled = 1
", array($member_id));
}

/**
* Counts all enabled and allowed subnets of member
*
* @author Michal Kliment
* @param integer $member_id
* @return integer
*/
public function count_all_enabled_allowed_subnets_by_member($member_id)
{
return $this->db->query("
SELECT COUNT(*) AS count
FROM allowed_subnets a
WHERE a.member_id = ? AND enabled = 1
", array($member_id))->current()->count;
}

/**
* Counts all disabled and allowed subnets of member
*
* @author Michal Kliment
* @param integer $member_id
* @return integer
*/
public function count_all_disabled_allowed_subnets_by_member($member_id)
{
return $this->db->query("
SELECT COUNT(*) AS count
FROM allowed_subnets a
WHERE a.member_id = ? AND enabled = 0
", array($member_id))->current()->count;
}

/**
* Checks if record exists and return its ID
*
* @author Michal Kliment
* @param integer $member_id
* @param integer $subnet_id
* @return integer
*/
public function exists($member_id, $subnet_id)
{
$result = $this->db->query("
SELECT a.id
FROM allowed_subnets a
WHERE a.member_id = ? AND a.subnet_id = ?
LIMIT 0,1
", array($member_id, $subnet_id));

if ($result && $result->current() && $result->current()->id)
{
return $result->current()->id;
}
return 0;
}

}
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