From d2c4ff10bfd99c7ffd2862931b5feea599e33037 Mon Sep 17 00:00:00 2001
From: Shamim Rezaie <shamim@moodle.com>
Date: Tue, 30 Jan 2018 11:42:27 +1100
Subject: [PATCH] MDL-61132 Questions: Upgrade step to add Top to existing
 contexts

Upgrade script to add a "Top" category as a real category to the question bank
---
 lib/db/upgrade.php | 38 ++++++++++++++++++++++++++++++++++++++
 version.php        |  4 ++--
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index 504fbfdafab..6b6dc90d3b2 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -1935,5 +1935,43 @@ function xmldb_main_upgrade($oldversion) {
         upgrade_main_savepoint(true, 2017122200.01);
     }
 
+    if ($oldversion < 2018020500.00) {
+
+        $topcategory = new stdClass();
+        $topcategory->name = 'top'; // A non-real name for the top category. It will be localised at the display time.
+        $topcategory->info = '';
+        $topcategory->parent = 0;
+        $topcategory->sortorder = 0;
+
+        // Get the total record count - used for the progress bar.
+        $total = $DB->count_records_sql("SELECT COUNT(DISTINCT contextid) FROM {question_categories} WHERE parent = 0");
+
+        // Get the records themselves - a list of contextids.
+        $rs = $DB->get_recordset_sql("SELECT DISTINCT contextid FROM {question_categories} WHERE parent = 0");
+
+        // For each context, create a single top-level category.
+        $i = 0;
+        $pbar = new progress_bar('createtopquestioncategories', 500, true);
+        foreach ($rs as $contextid => $notused) {
+            $topcategory->contextid = $contextid;
+            $topcategory->stamp = make_unique_id_code();
+
+            $topcategoryid = $DB->insert_record('question_categories', $topcategory);
+
+            $DB->set_field_select('question_categories', 'parent', $topcategoryid,
+                    'contextid = ? AND id <> ? AND parent = 0',
+                    array($contextid, $topcategoryid));
+
+            // Update progress.
+            $i++;
+            $pbar->update($i, $total, "Creating top-level question categories - $i/$total.");
+        }
+
+        $rs->close();
+
+        // Main savepoint reached.
+        upgrade_main_savepoint(true, 2018020500.00);
+    }
+
     return true;
 }
diff --git a/version.php b/version.php
index a8826708737..281e3faa583 100644
--- a/version.php
+++ b/version.php
@@ -29,11 +29,11 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$version  = 2018020100.00;              // YYYYMMDD      = weekly release date of this DEV branch.
+$version  = 2018020500.00;              // YYYYMMDD      = weekly release date of this DEV branch.
                                         //         RR    = release increments - 00 in DEV branches.
                                         //           .XX = incremental changes.
 
-$release  = '3.5dev (Build: 20180201)'; // Human-friendly version name
+$release  = '3.5dev (Build: 20180205)'; // Human-friendly version name
 
 $branch   = '35';                       // This version's branch.
 $maturity = MATURITY_ALPHA;             // This version's maturity level.