From e260bf1c122737b07b7ca38a29483ec3505617da Mon Sep 17 00:00:00 2001
From: gbateson <gbateson>
Date: Tue, 27 Jan 2009 08:37:54 +0000
Subject: [PATCH] MDL-17679: implement course reset for HotPot module (thanks
 to Albert Gasset)

---
 lang/en_utf8/hotpot.php |  2 ++
 mod/hotpot/lib.php      | 30 ++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/lang/en_utf8/hotpot.php b/lang/en_utf8/hotpot.php
index ddc5fb650adbb..39d890f45f27d 100644
--- a/lang/en_utf8/hotpot.php
+++ b/lang/en_utf8/hotpot.php
@@ -203,4 +203,6 @@
 
 // error messages (attempt.php)
 $string['error_invalidquiztype'] = 'Quiz type is missing or invalid';
+
+$string['deleteallattempts'] = 'Delete all attempts';
 ?>
diff --git a/mod/hotpot/lib.php b/mod/hotpot/lib.php
index 4d5e7b06f7c3e..b24271d9e9f63 100644
--- a/mod/hotpot/lib.php
+++ b/mod/hotpot/lib.php
@@ -2433,5 +2433,35 @@ function getDir(s) {
 	}
 	print '<span class="helplink">'.$html.'</span>';
 }
+/**
+ * Called by course/reset.php
+ * @param $mform form passed by reference
+ */
+function hotpot_reset_course_form($course) {
+    print_checkbox('reset_hotpot_deleteallattempts', 1, true, get_string('deleteallattempts', 'hotpot'), '', '');  echo '<br />';
+}
+function hotpot_delete_userdata($data, $showfeedback=true) {
+    global $CFG;
+    
+    if (!empty($data->reset_hotpot_deleteallattempts)) {
 
+        $hotpotids = "SELECT h.id FROM {$CFG->prefix}hotpot h WHERE h.course={$data->courseid}";
+        $attemptids = "SELECT a.id FROM {$CFG->prefix}hotpot_attempts a WHERE a.hotpot in ($hotpotids)";
+
+        delete_records_select('hotpot_responses', "attempt in ($attemptids)");
+        delete_records_select('hotpot_details', "attempt in ($attemptids)");
+        delete_records_select('hotpot_attempts', "hotpot IN ($hotpotids)");
+
+        if ($showfeedback) {
+            notify(get_string('reset').': '.get_string('modulenameplural', 'hotpot'), 'notifysuccess');
+        }
+    }
+}
+
+/**
+ * Course reset form defaults.
+ */
+function hotpot_reset_course_form_defaults($course) {
+    return array('reset_hotpot_deleteallattempts' => 1);
+}
 ?>