MD-1661: Forum calendar update fix (PR moodleou#40)

Add save_dates() override to report_editdates_mod_forum_date_extractor
that calls forum_update_calendar() and forum_grade_item_update() after
saving dates to the DB, so calendar events reflect the new dates.

Also queue a refresh_mod_calendar_events_task adhoc task in index.php
after rebuild_course_cache() to refresh all module calendar events for
the course in bulk.

Ref: moodleou#40 (commit b5508f9)
Made-with: Cursor

Author: dvdcastro

index.php

@@ -214,6 +214,12 @@
     // Commit transaction and finish up.
     $transaction->allow_commit();
     rebuild_course_cache($course->id);
+    // BEGIN LSU MD-1661: Queue adhoc task to refresh all mod calendar events after date update
+    // See: https://github.com/moodleou/moodle-report_editdates/pull/40 (commit b5508f9)
+    $task = new \core\task\refresh_mod_calendar_events_task();
+    $task->set_custom_data(['courseid' => $course->id]);
+    \core\task\manager::queue_adhoc_task($task, true);
+    // END LSU MD-1661: Queue adhoc task to refresh all mod calendar events after date update
     redirect($PAGE->url, get_string('changessaved'));
 }
 

mod/forumdates.php

@@ -81,4 +81,23 @@ public function validate_dates(cm_info $cm, array $dates) {
         }
         return $errors;
     }
+
+    // BEGIN LSU MD-1661: Call forum_update_calendar and forum_grade_item_update after saving dates
+    // See: https://github.com/moodleou/moodle-report_editdates/pull/40 (commit b5508f9)
+    // Without this override the forum's calendar events remain stale after dates are updated
+    // via this report, because the base save_dates() only does a DB update_record().
+    #[\Override]
+    public function save_dates(cm_info $cm, array $dates) {
+        global $DB, $CFG;
+        parent::save_dates($cm, $dates);
+
+        require_once($CFG->dirroot . '/mod/forum/locallib.php');
+        $forum = $DB->get_record('forum', ['id' => $cm->instance]);
+        $forum->cmidnumber = $cm->id;
+
+        // Update the calendar events and grade item for this forum.
+        forum_update_calendar($forum, $cm->id);
+        forum_grade_item_update($forum);
+    }
+    // END LSU MD-1661: Call forum_update_calendar and forum_grade_item_update after saving dates
 }