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<?php
/**
* VisibilityAbstract.php - Abstract class to define a visibilitySetting
*
* 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.
*
* @author Florian Bieringer <florian.bieringer@uni-passau.de>
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
* @category Stud.IP
*/
/**
* Defines basic attributes and functions a visibilitySetting needs
*/
abstract class VisibilityAbstract
{
protected $activated;
protected $int_representation;
protected $display_name;
protected $description;
/**
* verify method to determine if 2 users satisfy the criteria
* @param string $user_id the owner of the visibility
* @param string $other_id the user who gets checked if he can see the
* selected object
* @abstract
*/
abstract function verify($user_id, $other_id);
/**
* Returns if a visibiltySetting is activated
*
* @return boolean true if the visibilitySetting is activated
*/
public function isActivated()
{
return $this->activated;
}
/**
* Returns the int representation of the visibilitySetting in the database
*
* @return int the visibilitySetting in the database
*/
public function getIntRepresentation()
{
return $this->int_representation;
}
/**
* Returns the displayname of a visibilitySetting
*
* @return string the displayname
*/
public function getDisplayName()
{
return $this->display_name;
}
/**
* Returns the description of a visibilitySetting
*
* @return string description of the visibilitySetting
*/
public function getDescription()
{
return $this->description;
}
}
?>
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