UC-002 Open a delegated account — design realization

Overview	Requirements	Analysis	Design	Implementation	Tests
Use cases	Requirements	Analysis	Design	Implementation	Tests

Analysis: README

Elements

Design element	Kind	Code target
pages/loginas.php	controller	pages/loginas.php
manager::get_delegated_access_error	service	classes/manager.php
manager::start_delegated_session	service	classes/manager.php
hook\after_config	hook	classes/hook/after_config.php
hook\extend_user_menu	hook	classes/hook/extend_user_menu.php

Sequence

Contracts

Operation	Input	Output	Errors
get_delegated_access_error(realuserid, targetuserid)	two user ids	null, or a language string id	error_unauthorised, error_targetunavailable, error_privilegedtarget

Data touched

Table or entity	Operation
local_delegateaccount	read
user	read
local_delegateaccount_caps	read