From 4c26d1af76302ad3cc7c97fc3b4247faf337418f Mon Sep 17 00:00:00 2001
From: Mark Nelson <markn@moodle.com>
Date: Thu, 8 Dec 2016 16:04:27 +0800
Subject: [PATCH] MDL-57250 core: show admin settings when only one category
 exists

---
 course/index.php    | 13 +++++++++++--
 course/renderer.php | 20 +++++++++++++-------
 2 files changed, 24 insertions(+), 9 deletions(-)

diff --git a/course/index.php b/course/index.php
index 3b16759c5d9..dc03abc2447 100644
--- a/course/index.php
+++ b/course/index.php
@@ -37,9 +37,18 @@ if ($categoryid) {
     // And the object has been loaded for us no need for another DB call
     $category = $PAGE->category;
 } else {
-    $categoryid = 0;
+    // Check if there is only one category, if so use that.
+    if (coursecat::count_all() == 1) {
+        $category = coursecat::get_default();
+
+        $categoryid = $category->id;
+        $PAGE->set_category_by_id($categoryid);
+        $PAGE->set_pagetype('course-index-category');
+    } else {
+        $PAGE->set_context(context_system::instance());
+    }
+
     $PAGE->set_url('/course/index.php');
-    $PAGE->set_context(context_system::instance());
 }
 
 $PAGE->set_pagelayout('coursecategory');
diff --git a/course/renderer.php b/course/renderer.php
index f5238ddf4be..14040eae50e 100644
--- a/course/renderer.php
+++ b/course/renderer.php
@@ -1674,15 +1674,21 @@ class core_course_renderer extends plugin_renderer_base {
                 $this->page->set_title("$site->shortname: $strcategories");
             }
         } else {
-            $this->page->set_title("$site->shortname: ". $coursecat->get_formatted_name());
+            $title = $site->shortname;
+            if (coursecat::count_all() > 1) {
+                $title .= ": ". $coursecat->get_formatted_name();
+            }
+            $this->page->set_title($title);
 
             // Print the category selector
-            $output .= html_writer::start_tag('div', array('class' => 'categorypicker'));
-            $select = new single_select(new moodle_url('/course/index.php'), 'categoryid',
-                    coursecat::make_categories_list(), $coursecat->id, null, 'switchcategory');
-            $select->set_label(get_string('categories').':');
-            $output .= $this->render($select);
-            $output .= html_writer::end_tag('div'); // .categorypicker
+            if (coursecat::count_all() > 1) {
+                $output .= html_writer::start_tag('div', array('class' => 'categorypicker'));
+                $select = new single_select(new moodle_url('/course/index.php'), 'categoryid',
+                        coursecat::make_categories_list(), $coursecat->id, null, 'switchcategory');
+                $select->set_label(get_string('categories').':');
+                $output .= $this->render($select);
+                $output .= html_writer::end_tag('div'); // .categorypicker
+            }
         }
 
         // Print current category description