MDL-46776 gradereport_grader: Improve Grader report user interface

* Adding assignments to test course generator to more easily test the grader report with large number of students and graded activities.

admin/tool/generator/classes/course_backend.php

@@ -36,6 +36,10 @@ class tool_generator_course_backend extends tool_generator_backend {
      * @var array Number of sections in course
      */
     private static $paramsections = array(1, 10, 100, 500, 1000, 2000);
+    /**
+     * @var array Number of assignments in course
+     */
+    private static $paramassignments = array(1, 10, 100, 500, 1000, 2000);
     /**
      * @var array Number of Page activities in course
      */
@@ -179,6 +183,7 @@ public function make() {
         // Make course.
         $this->course = $this->create_course();
         $this->create_users();
+        $this->create_assignments();
         $this->create_pages();
         $this->create_small_files();
         $this->create_big_files();
@@ -318,6 +323,26 @@ private function create_user_accounts($first, $last) {
         $this->end_log();
     }
 
+    /**
+     * Creates a number of Assignment activities.
+     */
+    private function create_assignments() {
+        // Set up generator.
+        $assigngenerator = $this->generator->get_plugin_generator('mod_assign');
+
+        // Create assignments.
+        $number = self::$paramassignments[$this->size];
+        $this->log('createassignments', $number, true);
+        for ($i = 0; $i < $number; $i++) {
+            $record = array('course' => $this->course);
+            $options = array('section' => $this->get_target_section());
+            $assigngenerator->create_instance($record, $options);
+            $this->dot($i, $number);
+        }
+
+        $this->end_log();
+    }
+
     /**
      * Creates a number of Page activities.
      */

admin/tool/generator/lang/en/tool_generator.php

@@ -71,6 +71,7 @@
 $string['progress_checkaccounts'] = 'Checking user accounts ({$a})';
 $string['progress_coursecompleted'] = 'Course completed ({$a}s)';
 $string['progress_createaccounts'] = 'Creating user accounts ({$a->from} - {$a->to})';
+$string['progress_createassignments'] = 'Creating assignments ({$a})';
 $string['progress_createbigfiles'] = 'Creating big files ({$a})';
 $string['progress_createcourse'] = 'Creating course {$a}';
 $string['progress_createforum'] = 'Creating forum ({$a} posts)';