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  • Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
  • Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
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Differences Between: [Versions 311 and 401] [Versions 311 and 402] [Versions 311 and 403]

Provides various useful functionality to plugins that offer or use this MNet service Remote enrolment service is used by enrol_mnet plugin which publishes the server side methods. The client side is accessible from the admin tree.

Copyright: 2010 David Mudrak <david@moodle.com>
License: http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
File Size: 614 lines (25 kb)
Included or required:0 times
Referenced: 5 times
Includes or requires: 0 files

Defines 3 classes

mnetservice_enrol:: (10 methods):
  __construct()
  get_instance()
  is_available()
  get_remote_subscribers()
  get_remote_publishers()
  get_remote_courses()
  req_course_enrolments()
  req_enrol_user()
  req_unenrol_user()
  format_error_message()

mnetservice_enrol_existing_users_selector:: (3 methods):
  __construct()
  find_users()
  get_options()

mnetservice_enrol_potential_users_selector:: (3 methods):
  __construct()
  find_users()
  get_options()


Class: mnetservice_enrol  - X-Ref

Singleton providing various functionality usable by plugin(s) implementing this MNet service

__construct()   X-Ref
This is singleton, use {@link mnetservice_enrol::get_instance()}


get_instance()   X-Ref

return: mnetservice_enrol singleton instance

is_available()   X-Ref
Is this service enabled?

Currently, this checks if whole MNet is available. In the future, additional
checks can be done. Probably the field 'offer' should be checked but it does
not seem to be used so far.

return: bool

get_remote_subscribers()   X-Ref
Returns a list of remote servers that can enrol their users into our courses

We must publish MNet service 'mnet_enrol' for the peers to allow them to enrol
their users into our courses.

return: array

get_remote_publishers()   X-Ref
Returns a list of remote servers that offer their courses for our users

We must subscribe MNet service 'mnet_enrol' for the peers to allow our users to enrol
into their courses.

return: array

get_remote_courses($mnethostid, $usecache=true)   X-Ref
Fetches the information about the courses available on remote host for our students

The information about remote courses available for us is cached in {mnetservice_enrol_courses}.
This method either returns the cached information (typically when displaying the list to
students) or fetch fresh data via new XML-RPC request (which updates the local cache, too).
The lifetime of the cache is 1 day, so even if $usecache is set to true, the cache will be
re-populated if we did not fetch from any server (not only the currently requested one)
for some time.

param: id $mnethostid MNet remote host id
param: bool $usecache use cached data or invoke new XML-RPC?
return: array|string returned list or serialized array of mnet error messages

req_course_enrolments($mnethostid, $remotecourseid)   X-Ref
Updates local cache about enrolments of our users in remote courses

The remote course must allow enrolments via our Remote enrolment service client.
Because of legacy design of data structure returned by XML-RPC code, only one
user enrolment per course is returned by 1.9 MNet servers. This may be an issue
if the user is enrolled multiple times by various enrolment plugins. MNet 2.0
servers do not use user name as array keys - they do not need to due to side
effect of MDL-19219.

param: id $mnethostid MNet remote host id
param: int $remotecourseid ID of the course at the remote host
param: bool $usecache use cached data or invoke new XML-RPC?
return: bool|string true if success or serialized array of mnet error messages

req_enrol_user(stdclass $user, stdclass $remotecourse)   X-Ref
Send request to enrol our user to the remote course

Updates our remote enrolments cache if the enrolment was successful.

param: object $user our user
param: object $remotecourse record from mnetservice_enrol_courses table
return: true|string true if success, error message from the remote host otherwise

req_unenrol_user(stdclass $user, stdclass $remotecourse)   X-Ref
Send request to unenrol our user from the remote course

Updates our remote enrolments cache if the unenrolment was successful.

param: object $user our user
param: object $remotecourse record from mnetservice_enrol_courses table
return: true|string true if success, error message from the remote host otherwise

format_error_message($errormsg)   X-Ref
Prepares error messages returned by our XML-RPC requests to be send as debug info to {@link print_error()}

MNet client-side methods in this class return request error as serialized array.

param: string $error serialized array
return: string

Class: mnetservice_enrol_existing_users_selector  - X-Ref

Selector of our users enrolled into remote course via enrol_mnet plugin

__construct($name, $options)   X-Ref
No description

find_users($search)   X-Ref
Find our users currently enrolled into the remote course

param: string $search
return: array

get_options()   X-Ref
No description

Class: mnetservice_enrol_potential_users_selector  - X-Ref

Selector of our users who could be enrolled into a remote course via their enrol_mnet

__construct($name, $options)   X-Ref
No description

find_users($search)   X-Ref
Find our users who could be enrolled into the remote course

Our users must have 'moodle/site:mnetlogintoremote' capability assigned.
Remote users, guests, deleted and not confirmed users are not returned.

param: string $search
return: array

get_options()   X-Ref
No description