* The button to "Add group/grouping access restriction" under
common module settings should only be present if corresponding
availability plugins are enabled; and
* Prevent the same button behaving as a submit button, which
intercepted the user hitting return in the form and added a
restriction without deliberate action taken by the user.
This isn't really a deprecations where something is replaced
by another and all uses must adapt to. Instead it's just a
fallback functionality that will stop working in Moodle 4.2.
Because of that, I've tried to add TODO/@todo comments to
the places that will need to modified, always pointing to
MDL-71421 that is where the removal will happen.
Also, haven't added any debugging() output, after thinking
a lot about it, because this isn't anything that developers
can be using but a internal implementation detail (a fallback)
that we want to remove in some versions.
1) The GROUP BY statement must include all fields in the SELECT
not being aggregated or constant cols.
2) There was a missing space causing problems to databases
using named parameters.
In order to allow for correct seb:// or sebs:// calls without browser
warnings of insecure links, it is not possible to send a get request
with an attached cmid parameter to the unknown seb:// or sebs://
URL via a form button.
We've got to use a <a href> link outside a form to circumvent
browsers warning of an insecure link and call Safe Exam Browser
correctly.
Table names and database name now enclosed in backticks.
admin/cli/mysql_collation.php failed if $CFG->prefix was blank with
MySQL 8.0 because table 'groups' conflicted with a new reserved word.
Note that this quotes both mysql_collation.php and mysql_compressed_rows.php
but only the former was mal-functioning.
The case of mysql_compressed_rows.php is a little bit special because
not all tables are processed, only those having big rows. And the groups
table is not one of them. In any case, better add the quotes there for
any future case.
Also, when testing this patch https://tracker.moodle.org/browse/MDL-71512
was discovered and will need to be fixed to make core 100% compliant
with MySQL 8.0 and MariaDB 10.6 and up.
