This patch modifies the way copy data is shared in order to mitigate potential race conditions
and ensure that the serialised controller stored in the DB is always in a valid state.
The restore controller is now considered the "source of truth" for all information about the
copy operation. Backup controllers can no longer contain information about course copies.
As copy creation is not atomic, it is still possible for copy controllers to become orphaned or
exist in an invalid state. To mitigate this the backup cleanup task has been modified to call
a new helper method copy_helper::cleanup_orphaned_copy_controllers.
Summary of changes in this patch:
- Copy data must now be passed through the restore controller's constructor
- base_controller::get_copy has been deprecated in favour of restore_controller::get_copy
- base_controller::set_copy has been deprecated without replacement
- core_backup\copy\copy has been deprecated, use copy_helper.class.php's copy_helper instead
- backup_cleanup_task will now clean up orphaned controllers from copy operations that went awry
Thanks to Peter Burnett for assiting with testing this patch.
When "Path to PHP CLI" is not defined, an exception with the message
in cannotfindthepathtothecli should be displayed, and the page should
be redirected to System paths settings page.
Apart from that, this patch also replaced core_task to tool_task,
because this message wasn't traslated properly.
The machinery to fix orphaned calendar events that were broken by MDL-67494.
The solution consists of:
1) Upgrade step that checks if this site has executed the problematic upgrade steps and
if positive, it will schedule a new run for calendar_fix_orphaned_events adhoc task.
2) Adhoc task that will self-spawn calling the recovery machinery, running until
all the orphaned calendar events are fixed. It also sets the maximum runtime of
60 seconds. It is also possible to override that number by specifing the desired
number setting the ->calendareventsmaxseconds in your config.php
3) CLI script that will look for all the calendar events which userids
where broken by a wrong upgrade step, affecting to Moodle 3.9.5
and up.
It performs checks to both:
a) Detect if the site was affected (ran the wrong upgrade step).
b) Look for orphaned calendar events, categorising them as:
- standard: site / category / course / group / user events
- subscription: events created via subscriptions.
- action: normal action events, created to show common important dates.
- override: user and group override events, particular, that some activities support.
- custom: other events, not being any of the above, common or particular.
By specifying it (--fix) try to recover as many broken events (missing userid) as
possible. Standard, subscription, action, override events in core are fully supported but
override or custom events should be fixed by each plugin as far as there isn't any standard
API (plugin-wise) to launch a rebuild of the calendar events.
4) Unit tests and helper functions to generate calendar events. We have decided to
keep the tests simple, testing only true and false and not using data generators because
the code is purely to recover the calendar events and won't turn into an API or something
and also due to the urgency of this issue.
The helpers have been created in calendar/tests/helpers.php since there are no data generators
for calendar.
This class would belong more appropriately within the 'user' API
(core_user) instead of within the 'core' API, since it is
directly related to user data.
Since the class has only just been added to Moodle, now is a good
time to move it.
In all cases changes have been kept to a minimum while not making
the code completely horrible. For example, there are many instances
where it would probably be better to rewrite a query entirely, but
I have not done that (in order to reduce the risk of changes).
When a given user doesn't have the capability to "Include user data"
during course copying, freeze the form element rather than not adding
it at all.
This caused problems as the element was required before preceding with
the course copy.
This patch adds better core support for copying courses.
There is now a simplified and dedicated UI for copying
courses. This can be accessed from the course context
menu or course management screens.
All backups are done asynchronously and there can be multiple
copies of a course in flight at once.
- Add MDL codes to @deprecated.
- Add @todo tag for future 4.3 phase 2 deprecation.
- Deprecate global scope functions:
- cron_execute_plugin_type().
- cron_bc_hack_plugin_functions().
(moving them to deprecatelib).
- Document it in main upgrade.txt
In the table that lists the scheduled tasks:
1. There are badges to show which components are disabled.
2. The plugin name (e.g. auth_ldap) is shown as well as the
human-readable name (e.g. LDAP server).
3. Where a time column has a non-default value, it is highlighted
and the default is shown.
4. If the fail-delay is non-zero, the cell is highlighted.
4. If you just interacted with a task (looked at or edited the settings,
did Run now, or cleared the fail delay) that row is highlighted,
and scrolled into view when the page loads.
To support this, some of the methods for loading the default tasks
have been extended with an optional argument to leave 'R' as 'R'
rather than replacing with a random number.
Also, mixed into this commit are a bunch of coding style improvements.
Sorry I did not separate them out, but ultimately this makes the
Moodle code better.
Cameron Ball