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<?php
/**
* An interface for objects that behave as elements within a social network that have a profile.
*
* @package Elgg.Core
* @subpackage SocialModel.Friendable
*/
interface Friendable {
/**
* Adds a user as a friend
*
* @param int $friend_guid The GUID of the user to add
*
* @return bool
*/
public function addFriend($friend_guid);
/**
* Removes a user as a friend
*
* @param int $friend_guid The GUID of the user to remove
*
* @return bool
*/
public function removeFriend($friend_guid);
/**
* Determines whether or not the current user is a friend of this entity
*
* @return bool
*/
public function isFriend();
/**
* Determines whether or not this entity is friends with a particular entity
*
* @param int $user_guid The GUID of the entity this entity may or may not be friends with
*
* @return bool
*/
public function isFriendsWith($user_guid);
/**
* Determines whether or not a foreign entity has made this one a friend
*
* @param int $user_guid The GUID of the foreign entity
*
* @return bool
*/
public function isFriendOf($user_guid);
/**
* Returns this entity's friends
*
* @param string $subtype The subtype of entity to return
* @param int $limit The number of entities to return
* @param int $offset Indexing offset
*
* @return array|false
*/
public function getFriends($subtype = "", $limit = 10, $offset = 0);
/**
* Returns entities that have made this entity a friend
*
* @param string $subtype The subtype of entity to return
* @param int $limit The number of entities to return
* @param int $offset Indexing offset
*
* @return array|false
*/
public function getFriendsOf($subtype = "", $limit = 10, $offset = 0);
/**
* Returns objects in this entity's container
*
* @param string $subtype The subtype of entity to return
* @param int $limit The number of entities to return
* @param int $offset Indexing offset
*
* @return array|false
*/
public function getObjects($subtype = "", $limit = 10, $offset = 0);
/**
* Returns objects in the containers of this entity's friends
*
* @param string $subtype The subtype of entity to return
* @param int $limit The number of entities to return
* @param int $offset Indexing offset
*
* @return array|false
*/
public function getFriendsObjects($subtype = "", $limit = 10, $offset = 0);
/**
* Returns the number of object entities in this entity's container
*
* @param string $subtype The subtype of entity to count
*
* @return int
*/
public function countObjects($subtype = "");
}
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