src/Traits/Favoriteable.php
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]