MDL-53452 tool_lp: Change can_update to can_update_course

This is more consistent with other persistents.

admin/tool/lp/classes/api.php

@@ -4893,7 +4893,7 @@ class api {
         $pushratingstouserplans = isset($settings->pushratingstouserplans) ? $settings->pushratingstouserplans : false;
 
         // First we do a permissions check.
-        if (!course_competency_settings::can_update($courseid)) {
+        if (!course_competency_settings::can_update_course($courseid)) {
             $context = context_course::instance($courseid);
             throw new required_capability_exception($context, 'tool/lp:coursecompetencyconfigure', 'nopermissions', '');
         }

admin/tool/lp/classes/course_competency_settings.php

@@ -98,7 +98,7 @@ class course_competency_settings extends persistent {
      * @param int $data The course ID.
      * @return bool
      */
-    public static function can_update($courseid) {
+    public static function can_update_course($courseid) {
         $context = context_course::instance($courseid);
 
         $capabilities = array('tool/lp:coursecompetencyconfigure');
@@ -106,6 +106,15 @@ class course_competency_settings extends persistent {
         return has_any_capability($capabilities, $context);
     }
 
+    /**
+     * Can the current user change competency settings for this course.
+     *
+     * @return bool
+     */
+    public function can_update() {
+        return static::can_update_course($this->get_courseid());
+    }
+
     /**
      * Validate course ID.
      *