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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/
*
*/

/**
* Device admin is sets engineers of device.
*
* @package Model
*
* @property integer $id
* @property integer $device_id
* @property Device_Model $device
* @property integer $user_id
* @property User_Model $user
*/
class Device_engineer_Model extends ORM
{
protected $belongs_to = array('device', 'user');
/**
* Function gets engineers of specified device.
*
* @param $device_id
* @return Mysql_Result
*/
public function get_device_engineers($device_id)
{
return $this->db->query("
SELECT de.id, u.name, u.surname, u.login
FROM device_engineers de
JOIN users u ON de.user_id = u.id
WHERE de.device_id = ?
ORDER BY id asc
", $device_id);
}
/**
* Function gets engineer of user.
* Used in devices/add to prefill engineer field.
*
* @param $user_id
* @return Mysql_Result
*/
public function get_engineer_of_user($user_id)
{
return $this->db->query("
SELECT de.user_id AS id
FROM device_engineers de
JOIN devices d ON d.id = de.device_id
WHERE d.user_id = ?
ORDER BY de.id asc
", $user_id)->current();
}

/**
* Returns engineers of user
*
* @author Michal Kliment
* @param integer $user_id
* @return Mysql_Result
*/
public function get_engineers_of_user($user_id)
{
return $this->db->query("
SELECT u.id, u.name, u.surname
FROM devices d
JOIN device_engineers e ON d.id = e.device_id
JOIN users u ON e.user_id = u.id
WHERE d.user_id = ?
GROUP BY u.id
ORDER BY u.surname
", $user_id);
}
/**
* Returns all devices of which is user engineer
*
* @author Michal Kliment
* @param integer $user_id
* @return Mysql_Result
*/
public function get_all_devices_by_engineer ($user_id)
{
return $this->db->query("
SELECT de.id, de.device_id, d.name AS device_name, d.user_id,
CONCAT(u.name,' ',u.surname) AS user_name
FROM device_engineers de
JOIN devices d ON de.device_id = d.id
JOIN users u ON d.user_id = u.id
WHERE de.user_id = ?
ORDER BY u.id, d.name
", array($user_id));
}
}
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