MDL-47494 ddimageortext: NOBUG file access function that I forgot to …

…add and commit earlier.

question/type/ddimageortext/lib.php

@@ -0,0 +1,39 @@
+<?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/>.
+
+/**
+ * Serve question type files
+ *
+ * @since      2.0
+ * @package    qtype
+ * @subpackage essay
+ * @copyright  Dongsheng Cai <dongsheng@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+
+defined('MOODLE_INTERNAL') || die();
+
+
+/**
+ * Checks file access for essay questions.
+ */
+function qtype_ddimagetoimage_pluginfile($course, $cm, $context, $filearea, $args, $forcedownload) {
+    global $CFG;
+    require_once($CFG->libdir . '/questionlib.php');
+    question_pluginfile($course, $context, 'qtype_ddimagetoimage',
+                                                                $filearea, $args, $forcedownload);
+}