protected function check_minmaxtouse() {
        global $CFG, $DB;
        require_once($CFG->libdir . '/gradelib.php');

        $userinfo = $this->task->get_setting_value('users');
        $settingname = 'minmaxtouse';
        $courseid = $this->get_courseid();
        $minmaxtouse = $DB->get_field('grade_settings', 'value', array('courseid' => $courseid, 'name' => $settingname));
        $version28start = 2014111000.00;
        $version28last = 2014111006.05;
        $version29start = 2015051100.00;
        $version29last = 2015060400.02;

        $target = $this->get_task()->get_target();
        if ($minmaxtouse === false &&
                ($target != backup::TARGET_CURRENT_ADDING && $target != backup::TARGET_EXISTING_ADDING)) {
            // The setting was not found because this setting did not exist at the time the backup was made.
            // And we are not restoring as merge, in which case we leave the course as it was.
            $version = $this->get_task()->get_info()->moodle_version;

            if ($version < $version28start) {
                // We need to set it to use grade_item, but only if the site-wide setting is different. No need to notice them.
                if ($CFG->grade_minmaxtouse != GRADE_MIN_MAX_FROM_GRADE_ITEM) {
                    grade_set_setting($courseid, $settingname, GRADE_MIN_MAX_FROM_GRADE_ITEM);
                }

            } else if (($version >= $version28start && $version < $version28last) ||
                    ($version >= $version29start && $version < $version29last)) {
                // They should be using grade_grade when the course has inconsistencies.

                $sql = "SELECT gi.id
                          FROM {grade_items} gi
                          JOIN {grade_grades} gg
                            ON gg.itemid = gi.id
                         WHERE gi.courseid = ?
                           AND (gi.itemtype != ? AND gi.itemtype != ?)
                           AND (gg.rawgrademax != gi.grademax OR gg.rawgrademin != gi.grademin)";

                // The course can only have inconsistencies when we restore the user info,
                // we do not need to act on existing grades that were not restored as part of this backup.
                if ($userinfo && $DB->record_exists_sql($sql, array($courseid, 'course', 'category'))) {

                    // Display the notice as we do during upgrade.
                    set_config('show_min_max_grades_changed_' . $courseid, 1);

                    if ($CFG->grade_minmaxtouse != GRADE_MIN_MAX_FROM_GRADE_GRADE) {
                        // We need set the setting as their site-wise setting is not GRADE_MIN_MAX_FROM_GRADE_GRADE.
                        // If they are using the site-wide grade_grade setting, we only want to notice them.
                        grade_set_setting($courseid, $settingname, GRADE_MIN_MAX_FROM_GRADE_GRADE);
                    }
                }

            } else {
                // This should never happen because from now on minmaxtouse is always saved in backups.
            }
        }
    }
protected function check_minmaxtouse() {
        global $CFG, $DB;
        require_once($CFG->libdir . '/gradelib.php');

        $userinfo = $this->task->get_setting_value('users');
        $settingname = 'minmaxtouse';
        $courseid = $this->get_courseid();
        $minmaxtouse = $DB->get_field('grade_settings', 'value', array('courseid' => $courseid, 'name' => $settingname));
        $version28start = 2014111000.00;
        $version28last = 2014111006.05;
        $version29start = 2015051100.00;
        $version29last = 2015060400.02;

        $target = $this->get_task()->get_target();
        if ($minmaxtouse === false &&
                ($target != backup::TARGET_CURRENT_ADDING && $target != backup::TARGET_EXISTING_ADDING)) {
            // The setting was not found because this setting did not exist at the time the backup was made.
            // And we are not restoring as merge, in which case we leave the course as it was.
            $version = $this->get_task()->get_info()->moodle_version;

            if ($version < $version28start) {
                // We need to set it to use grade_item, but only if the site-wide setting is different. No need to notice them.
                if ($CFG->grade_minmaxtouse != GRADE_MIN_MAX_FROM_GRADE_ITEM) {
                    grade_set_setting($courseid, $settingname, GRADE_MIN_MAX_FROM_GRADE_ITEM);
                }

            } else if (($version >= $version28start && $version < $version28last) ||
                    ($version >= $version29start && $version < $version29last)) {
                // They should be using grade_grade when the course has inconsistencies.

                $sql = "SELECT gi.id
                          FROM {grade_items} gi
                          JOIN {grade_grades} gg
                            ON gg.itemid = gi.id
                         WHERE gi.courseid = ?
                           AND (gi.itemtype != ? AND gi.itemtype != ?)
                           AND (gg.rawgrademax != gi.grademax OR gg.rawgrademin != gi.grademin)";

                // The course can only have inconsistencies when we restore the user info,
                // we do not need to act on existing grades that were not restored as part of this backup.
                if ($userinfo && $DB->record_exists_sql($sql, array($courseid, 'course', 'category'))) {

                    // Display the notice as we do during upgrade.
                    set_config('show_min_max_grades_changed_' . $courseid, 1);

                    if ($CFG->grade_minmaxtouse != GRADE_MIN_MAX_FROM_GRADE_GRADE) {
                        // We need set the setting as their site-wise setting is not GRADE_MIN_MAX_FROM_GRADE_GRADE.
                        // If they are using the site-wide grade_grade setting, we only want to notice them.
                        grade_set_setting($courseid, $settingname, GRADE_MIN_MAX_FROM_GRADE_GRADE);
                    }
                }

            } else {
                // This should never happen because from now on minmaxtouse is always saved in backups.
            }
        }
    }
protected function check_minmaxtouse ( ) { global $ CFG , $ DB ; require_once ( $ CFG -> libdir . '/gradelib.php' ) ; $ userinfo = $ this -> task -> get_setting_value ( 'users' ) ; $ settingname = 'minmaxtouse' ; $ courseid = $ this -> get_courseid ( ) ; $ minmaxtouse = $ DB -> get_field ( 'grade_settings' , 'value' , array ( 'courseid' => $ courseid , 'name' => $ settingname ) ) ; $ version28start = 2014111000.00 ; $ version28last = 2014111006.05 ; $ version29start = 2015051100.00 ; $ version29last = 2015060400.02 ; $ target = $ this -> get_task ( ) -> get_target ( ) ; if ( $ minmaxtouse === false && ( $ target != backup :: TARGET_CURRENT_ADDING && $ target != backup :: TARGET_EXISTING_ADDING ) ) { // The setting was not found because this setting did not exist at the time the backup was made. // And we are not restoring as merge, in which case we leave the course as it was. $ version = $ this -> get_task ( ) -> get_info ( ) -> moodle_version ; if ( $ version < $ version28start ) { // We need to set it to use grade_item, but only if the site-wide setting is different. No need to notice them. if ( $ CFG -> grade_minmaxtouse != GRADE_MIN_MAX_FROM_GRADE_ITEM ) { grade_set_setting ( $ courseid , $ settingname , GRADE_MIN_MAX_FROM_GRADE_ITEM ) ; } } else if ( ( $ version >= $ version28start && $ version < $ version28last ) || ( $ version >= $ version29start && $ version < $ version29last ) ) { // They should be using grade_grade when the course has inconsistencies. $ sql = "SELECT gi.id
                          FROM {grade_items} gi
                          JOIN {grade_grades} gg
                            ON gg.itemid = gi.id
                         WHERE gi.courseid = ?
                           AND (gi.itemtype != ? AND gi.itemtype != ?)
                           AND (gg.rawgrademax != gi.grademax OR gg.rawgrademin != gi.grademin)" ; // The course can only have inconsistencies when we restore the user info, // we do not need to act on existing grades that were not restored as part of this backup. if ( $ userinfo && $ DB -> record_exists_sql ( $ sql , array ( $ courseid , 'course' , 'category' ) ) ) { // Display the notice as we do during upgrade. set_config ( 'show_min_max_grades_changed_' . $ courseid , 1 ) ; if ( $ CFG -> grade_minmaxtouse != GRADE_MIN_MAX_FROM_GRADE_GRADE ) { // We need set the setting as their site-wise setting is not GRADE_MIN_MAX_FROM_GRADE_GRADE. // If they are using the site-wide grade_grade setting, we only want to notice them. grade_set_setting ( $ courseid , $ settingname , GRADE_MIN_MAX_FROM_GRADE_GRADE ) ; } } } else { // This should never happen because from now on minmaxtouse is always saved in backups. } } }
Checks what should happen with the course grade setting minmaxtouse.

This is related to the upgrade step at the time the setting was added.

@see MDL-48618
@return void
Checks what should happen with the course grade setting minmaxtouse .