public function toggleFavorite($user_id = null)
	{
		$this->isFavorited($user_id) ? $this->removeFavorite($user_id) : $this->addFavorite($user_id) ;
	}
public function toggleFavorite($user_id = null)
	{
		$this->isFavorited($user_id) ? $this->removeFavorite($user_id) : $this->addFavorite($user_id) ;
	}
public function toggleFavorite ( $ user_id = null ) { $ this -> isFavorited ( $ user_id ) ? $ this -> removeFavorite ( $ user_id ) : $ this -> addFavorite ( $ user_id ) ; }
Toggle the favorite status from this Object

@param  int $user_id  [if  null its added to the auth user]
Toggle the favorite status from this Object