Patches for Moodle 2 to allow courses under specified categories to appear collapsed under headings in the Navigation block. Copyright Richard Taunton Sixth Form College, UK. Licenced under GNU GPL.

0038-Modified-Navigationlib-to-support-categories-in-My-C.patch

From da6261b0fe00a33c2c672c239df7d875f82e3457 Mon Sep 17 00:00:00 2001
From: Mark Johnson <mark.johnson@tauntons.ac.uk>
Date: Fri, 19 Aug 2011 10:32:23 +0100
Subject: [PATCH 38/78] Modified Navigationlib to support categories in My
 Courses

My Courses in the Nav block doesn't support categories by default.
This hack implements a new setting, $CFG->mycoursescollapsecategories,
where an array of category IDs can be spefied.  Any courses appearing in
My Courses that are under these categories will be collapsed underneath them.
If there are several categories in the array with the same name, courses
will be grouped under a single heading.
---
 lib/navigationlib.php |   27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/lib/navigationlib.php b/lib/navigationlib.php
index 7aea49a..fa40685 100644
--- a/lib/navigationlib.php
+++ b/lib/navigationlib.php
@@ -2210,7 +2210,32 @@ class global_navigation extends navigation_node {
                 $shortname = get_string('sitepages');
             }
         } else if ($ismycourse) {
-            $parent = $this->rootnodes['mycourses'];
+
+            // LOCAL: Collapse courses under specificed categories
+            if (isset($CFG->mycoursescollapsecategories && is_array($CFG->mycoursescollapsecategories)) {
+                global $DB;
+                $collapsecategories = array();
+                foreach($CFG->mycoursescollapsecategories as $catid) {
+                    $collapsecategories[$catid] = $DB->get_record('course_categories', array('id' => $catid));
+                    $collapsecategories[$catid]->context = get_context_instance(CONTEXT_COURSECAT, $catid);
+                }
+                $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
+                $contextpath = explode('/', $coursecontext->path);
+                foreach ($collapsecategories as $collapsecategory) {
+                    if (in_array($collapsecategory->context->id, $contextpath)) {
+                        if (!$categorynode = $this->rootnodes['mycourses']->get('cat'.$collapsecategory->name)) {
+                            $categorynode = $this->rootnodes['mycourses']->add($collapsecategory->name, null, self::TYPE_CONTAINER, null, 'cat'.$collapsecategory->name);
+                        }
+                    }
+                }
+            }
+            if (isset($categorynode)) {
+                $parent = $categorynode;
+            } else {
+                $parent = $this->rootnodes['mycourses'];
+            }
+
+//            $parent = $this->rootnodes['mycourses'];
             $url = new moodle_url('/course/view.php', array('id'=>$course->id));
         } else {
             $parent = $this->rootnodes['courses'];
-- 
1.7.10

0039-Fixed-typo-in-navigationlib-hack.patch

From bdd9cb5985e4cbd5069a3137be3899741bd6827f Mon Sep 17 00:00:00 2001
From: Mark Johnson <mark.johnson@tauntons.ac.uk>
Date: Fri, 19 Aug 2011 10:50:53 +0100
Subject: [PATCH 39/78] Fixed typo in navigationlib hack

---
 lib/navigationlib.php |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/navigationlib.php b/lib/navigationlib.php
index fa40685..344ecc7 100644
--- a/lib/navigationlib.php
+++ b/lib/navigationlib.php
@@ -2212,7 +2212,7 @@ class global_navigation extends navigation_node {
         } else if ($ismycourse) {
 
             // LOCAL: Collapse courses under specificed categories
-            if (isset($CFG->mycoursescollapsecategories && is_array($CFG->mycoursescollapsecategories)) {
+            if (isset($CFG->mycoursescollapsecategories) && is_array($CFG->mycoursescollapsecategories)) {
                 global $DB;
                 $collapsecategories = array();
                 foreach($CFG->mycoursescollapsecategories as $catid) {
-- 
1.7.10