public function acceptInvite($inviterID) { $conditions = array(); $conditions['user_one_id'] = $inviterID; $conditions['user_two_id'] = $this->id; $success = ConnectionFactory::updateTableRowAbsoluteBasic("agencies", array('accepted' => 1), $conditions); if ($success) { return ConnectionFactory::updateTableRowsRelativeOnIDs("users", array('agency_size' => 1), array($this->id, $inviterID)); } }