friends_friendship_is_limited_before_save

apply_filters( 'friends_friendship_is_limited_before_save',        $this->is_limited,        $this->id )

friends_friendship_initiator_user_id_before_save

apply_filters( 'friends_friendship_initiator_user_id_before_save', $this->initiator_user_id, $this->id )

apply_filters( 'friends_friendship_is_confirmed_before_save',      $this->is_confirmed,      $this->id )

apply_filters( 'friends_friendship_friend_user_id_before_save',    $this->friend_user_id,    $this->id )

apply_filters( 'friends_friendship_date_created_before_save',      $this->date_created,      $this->id )

do_action( 'friends_friendship_after_save', array( &$this ) )