There are inherent issues with task blocking which mean that it has
never worked properly. It is also very buggy and can lead to massive
performance issues with task processing.
It is almost impossible to deprecate this in a staged fashion because
various APIs use the methods and it is not possible to determine which
are API uses and which are other valid uses.
In reality there has been little-to-no uptake on the use of this feature
and it should just be removed.
If $CFG->enable_read_only_sessions_debug was not enabled, debugging could be
enabled part-way through a request when restart_with_write_lock was
called. This meant that a diff between the initial and final session
would be made during write_close(), although the intial session state
was never captured. This generated false positives in the logs, and it
thought any variable set in the session was a change from the original
value.
This ensures that debugging is enabled before the debug flag is allowed
to change, preventing false positives.
Also added @runInSeparateProcess on each session Redis cluster test to let the test run
in a separate process to avoid the error "the headers are not already sent" by PHPUnit.
The original implementation of group filtering introduced in MDL-80565
assumed that the log table existed in Moodle's own database. This is not
the case of the database logstore, or any similar logstore implemetning
the database \core\log\sql_reader interface.
Furthermore this check was also applying the SQL when the user had the
`accessallgroups` capability, or when the course was not in SEPARATE
groups mode (no groupmode and/or visible groups).
Co-authored: Laurent David <laurent.david@moodle.com>
Using DI for all hook access means that it becomes significantly easier
to mock hooks and callbacks for unit testing without fundamentally
altering the structure of the code purely for the purposes of unit
testing.
This commit adds the PSR-20 ClockInterface to core, with a
moodle-specific extension to the Interface at `\core\clock`, and a
standard clock at `\core\system_clock`.
Further clocks are provided as `\incrementing_clock` and `\frozen_clock`
which are available to unit tests using:
- `$this->mock_clock_with_incrementing(?int $starttime = null);`
- `$this->mock_clock_with_frozen(?int $time = null);`
For the incrementing clock, every call to fetch the time will bump the
current time by one second.
For the frozen clock the time will not change, but can be modified with:
- `$clock->set_to(int $time);`; and
- `$clock->bump(int $seconds = 1);`
Unfortunately, the read_timeout named parameter was not recognized on some machines.
To avoid such errors, this patch removed the named parameter on a single Redis connect() and the Redis cluster.
This is just a lightweight way of providing \core\plugin_manager and
aliasing \core_plugin_manager for b/c as a pathway out of our dim and
dark ways of PSR-0 class names.