Merge branch 'MDL-83297-maxgradesperpage-404' of https://github.com/dragos5436/moodle into MOODLE_404_STABLE

config-dist.php

@@ -773,7 +773,13 @@ $CFG->admin = 'admin';
 // Defaults to 60 minutes.
 //
 //      $CFG->enrolments_sync_interval = 3600
-
+//
+// Set limit for grade items that can be shown on a single page of the grader
+// report. Browsers struggle when the number of grade items is very large and
+// one tries to view all students.
+//
+//      $CFG->maxgradesperpage = 200000;
+//
 //=========================================================================
 // 7. SETTINGS FOR DEVELOPMENT SERVERS - not intended for production use!!!
 //=========================================================================

grade/report/grader/lib.php

@@ -543,7 +543,15 @@ class grade_report_grader extends grade_report {
      * @return int
      */
     public function get_max_students_per_page(): int {
-        return round(static::MAX_GRADES_PER_PAGE / count($this->get_allgradeitems()));
+        global $CFG;
+
+        if (isset($CFG->maxgradesperpage) && clean_param($CFG->maxgradesperpage, PARAM_INT) > 0) {
+            $maxgradesperpage = $CFG->maxgradesperpage;
+        } else {
+            $maxgradesperpage = self::MAX_GRADES_PER_PAGE;
+        }
+
+        return round($maxgradesperpage / count($this->get_allgradeitems()));
     }
 
     /**