Merge branch 'MDL-46207-master' of git://github.com/damyon/moodle

lib/classes/task/manager.php

@@ -456,6 +456,8 @@ class manager {
         $params = array('timestart1' => $timestart, 'timestart2' => $timestart);
         $records = $DB->get_records_select('task_scheduled', $where, $params);
 
+        $pluginmanager = \core_plugin_manager::instance();
+
         foreach ($records as $record) {
 
             if ($lock = $cronlockfactory->get_lock(($record->classname), 10)) {
@@ -463,6 +465,17 @@ class manager {
                 $task = self::scheduled_task_from_record($record);
 
                 $task->set_lock($lock);
+
+                // See if the component is disabled.
+                $plugininfo = $pluginmanager->get_plugin_info($task->get_component());
+
+                if ($plugininfo) {
+                    if (!$task->get_run_if_component_disabled() && !$plugininfo->is_enabled()) {
+                        $lock->release();
+                        continue;
+                    }
+                }
+
                 if (!$task->is_blocking()) {
                     $cronlock->release();
                 } else {

lib/classes/task/scheduled_task.php

@@ -183,6 +183,15 @@ abstract class scheduled_task extends task_base {
         return $this->disabled;
     }
 
+    /**
+     * Override this function if you want this scheduled task to run, even if the component is disabled.
+     *
+     * @return bool
+     */
+    public function get_run_if_component_disabled() {
+        return false;
+    }
+
     /**
      * Take a cron field definition and return an array of valid numbers with the range min-max.
      *