From 5bc8335c6faa14e3fe04692b02391045d0f01ac7 Mon Sep 17 00:00:00 2001
From: Justin Filip <jfilip@gmail.com>
Date: Fri, 2 Dec 2011 14:55:27 -0500
Subject: [PATCH] MDL-29598 backup Check whether a grade_letters record exists
 before trying to insert a new record

---
 backup/moodle2/restore_stepslib.php | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/backup/moodle2/restore_stepslib.php b/backup/moodle2/restore_stepslib.php
index 3677d7bee02..255808f28fa 100644
--- a/backup/moodle2/restore_stepslib.php
+++ b/backup/moodle2/restore_stepslib.php
@@ -270,7 +270,15 @@ class restore_gradebook_structure_step extends restore_structure_step {
 
         $data->contextid = context_course::instance($this->get_courseid())->id;
 
-        $newitemid = $DB->insert_record('grade_letters', $data);
+        // MDL-29598 - Don't insert a duplicate record if this grade letter already exists
+        $gltest = (array)$data;
+        unset($gltest['id']);
+        if (!$DB->record_exists('grade_letters', $gltest)) {
+            $newitemid = $DB->insert_record('grade_letters', $data);
+        } else {
+            $newitemid = $data->id;
+        }
+
         $this->set_mapping('grade_letter', $oldid, $newitemid);
     }
     protected function process_grade_setting($data) {