From 35c7dea6d201de9fd72ba5920119ffe09257e3af Mon Sep 17 00:00:00 2001
From: Jamie Pratt <me@jamiep.org>
Date: Mon, 2 Apr 2012 16:33:09 +0700
Subject: [PATCH] MDL-47494 ddmarker: NOBUG added script needed for upgrading
 attempt data from imagetarget qs

---
 question/type/ddmarker/db/upgradelib.php | 85 ++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 question/type/ddmarker/db/upgradelib.php

diff --git a/question/type/ddmarker/db/upgradelib.php b/question/type/ddmarker/db/upgradelib.php
new file mode 100644
index 00000000000..2ab9118ddb7
--- /dev/null
+++ b/question/type/ddmarker/db/upgradelib.php
@@ -0,0 +1,85 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Upgrade library code for the ddmarker question type. This will only get triggered by the code
+ * to convert imagetarget questions to ddmarker.
+ *
+ * @package    qtype
+ * @subpackage ddmarker
+ * @copyright  2012 Jamie Pratt
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+
+defined('MOODLE_INTERNAL') || die();
+
+
+/**
+ * Class for converting attempt data from imagetarget questions when converting
+ * attempts to the new question engine.
+ *
+ * This class is used by the code in question/engine/upgrade/upgradelib.php.
+ *
+ * @copyright  2010 The Open University
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class qtype_ddmarker_qe2_attempt_updater extends question_qtype_attempt_updater {
+    public function right_answer() {
+        $drag = reset($this->question->options->drags);
+        return '{'.get_string('dropzone', 'qtype_ddmarker', '1')." -> ".$drag->label.'}';
+    }
+
+    public function was_answered($state) {
+        return !empty($state->answer);
+    }
+
+    public function response_summary($state) {
+        if (!empty($state->answer)) {
+            $drag = reset($this->question->options->drags);
+            foreach ($this->question->options->drops as $drop) {
+                list($xy, $wh) = explode(';', $drop->coords);
+                list($x, $y) = explode(',', $xy);
+                list($w, $h) = explode(',', $wh);
+                list($answerx, $answery) = explode(',', $state->answer);
+                if (($answerx >= $x && $answerx <= ($x + $w)) && ($answery >= $y && $answery <= ($y + $h))) {
+                    return '{'.get_string('dropzone', 'qtype_ddmarker', $drop->no)." -> ".$drag->label.'}';
+                }
+            }
+            return '';
+        } else {
+            return null;
+        }
+    }
+
+    public function question_summary() {
+        $drag = reset($this->question->options->drags);
+        return parent::question_summary().'[['.get_string('dropzone', 'qtype_ddmarker', '1')."]] -> {".$drag->label.'}';
+    }
+
+    public function set_first_step_data_elements($state, &$data) {
+        $data['_choiceorder1'] = '1';
+    }
+
+    public function supply_missing_first_step_data(&$data) {
+    }
+
+    public function set_data_elements_for_step($state, &$data) {
+        if (!empty($state->answer)) {
+            $data['c1'] = $state->answer;
+        }
+    }
+}