--- /dev/null
+<?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/>.
+
+/**
+ * @package moodlecore
+ * @subpackage backup-moodle2
+ * @copyright 2011 The Open University
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+
+defined('MOODLE_INTERNAL') || die();
+
+
+/**
+ * Provides the information to backup gapselect questions
+ *
+ * @copyright 2011 The Open University
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class backup_qtype_gapselect_plugin extends backup_qtype_plugin {
+
+ /**
+ * Returns the qtype information to attach to question element
+ */
+ protected function define_question_plugin_structure() {
+
+ // Define the virtual plugin element with the condition to fulfill
+ $plugin = $this->get_plugin_element(null, '../../qtype', 'gapselect');
+
+ // Create one standard named plugin element (the visible container)
+ $pluginwrapper = new backup_nested_element($this->get_recommended_name());
+
+ // connect the visible container ASAP
+ $plugin->add_child($pluginwrapper);
+
+ // This qtype uses standard question_answers, add them here
+ // to the tree before any other information that will use them
+ $this->add_question_question_answers($pluginwrapper);
+
+ // Now create the qtype own structures
+ $gapselect = new backup_nested_element('gapselect', array('id'), array(
+ 'shuffleanswers', 'correctfeedback', 'correctfeedbackformat',
+ 'partiallycorrectfeedback', 'partiallycorrectfeedbackformat',
+ 'incorrectfeedback', 'incorrectfeedbackformat', 'shownumcorrect'));
+
+ // Now the own qtype tree
+ $pluginwrapper->add_child($gapselect);
+
+ // set source to populate the data
+ $gapselect->set_source_table('question_gapselect', array('questionid' => backup::VAR_PARENTID));
+
+ // don't need to annotate ids nor files
+
+ return $plugin;
+ }
+
+ /**
+ * Returns one array with filearea => mappingname elements for the qtype
+ *
+ * Used by {@link get_components_and_fileareas} to know about all the qtype
+ * files to be processed both in backup and restore.
+ */
+ public static function get_qtype_fileareas() {
+ return array(
+ 'correctfeedback' => 'question_created',
+ 'partiallycorrectfeedback' => 'question_created',
+ 'incorrectfeedback' => 'question_created');
+ }
+}
--- /dev/null
+<?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/>.
+
+/**
+ * @package moodlecore
+ * @subpackage backup-moodle2
+ * @copyright 2011 The Open University
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+
+defined('MOODLE_INTERNAL') || die();
+
+
+/**
+ * restore plugin class that provides the necessary information
+ * needed to restore one gapselect qtype plugin
+ *
+ * @copyright 2011 The Open University
+ * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class restore_qtype_gapselect_plugin extends restore_qtype_plugin {
+
+ /**
+ * Returns the paths to be handled by the plugin at question level
+ */
+ protected function define_question_plugin_structure() {
+
+ $paths = array();
+
+ // This qtype uses question_answers, add them
+ $this->add_question_question_answers($paths);
+
+ // Add own qtype stuff
+ $elename = 'gapselect';
+ $elepath = $this->get_pathfor('/gapselect'); // we used get_recommended_name() so this works
+ $paths[] = new restore_path_element($elename, $elepath);
+
+
+ return $paths; // And we return the interesting paths
+ }
+
+ /**
+ * Process the qtype/gapselect element
+ */
+ public function process_gapselect($data) {
+ global $DB;
+
+ $data = (object)$data;
+ $oldid = $data->id;
+
+ // Detect if the question is created or mapped
+ $oldquestionid = $this->get_old_parentid('question');
+ $newquestionid = $this->get_new_parentid('question');
+ $questioncreated = $this->get_mappingid('question_created', $oldquestionid) ? true : false;
+
+ // If the question has been created by restore, we need to create its question_gapselect too
+ if ($questioncreated) {
+ // Adjust some columns
+ $data->questionid = $newquestionid;
+ // Insert record
+ $newitemid = $DB->insert_record('question_gapselect', $data);
+ // Create mapping (needed for decoding links)
+ $this->set_mapping('question_gapselect', $oldid, $newitemid);
+ } else {
+ // Nothing to remap if the question already existed
+ }
+ }
+
+ /**
+ * Given one question_states record, return the answer
+ * recoded pointing to all the restored stuff for gapselect questions
+ *
+ * answer are two (hypen speparated) lists of comma separated question_answers
+ * the first to specify the order of the answers and the second to specify the
+ * responses. Note the order list (the first one) can be optional
+ */
+ public function recode_state_answer($state) {
+ $answer = $state->answer;
+ $orderarr = array();
+ $responsesarr = array();
+ $lists = explode(':', $answer);
+ // if only 1 list, answer is missing the order list, adjust
+ if (count($lists) == 1) {
+ $lists[1] = $lists[0]; // here we have the responses
+ $lists[0] = ''; // here we have the order
+ }
+ // Map order
+ foreach (explode(',', $lists[0]) as $id) {
+ if (!empty($id) && $newid = $this->get_mappingid('question_answer', $id)) {
+ $orderarr[] = $newid;
+ }
+ }
+ // Map responses
+ foreach (explode(',', $lists[1]) as $id) {
+ if (!empty($id) && $newid = $this->get_mappingid('question_answer', $id)) {
+ $responsesarr[] = $newid;
+ }
+ }
+ // Build the final answer, if not order, only responses
+ $result = '';
+ if (empty($orderarr)) {
+ $result = implode(',', $responsesarr);
+ } else {
+ $result = implode(',', $orderarr) . ':' . implode(',', $responsesarr);
+ }
+ return $result;
+ }
+
+ /**
+ * Return the contents of this qtype to be processed by the links decoder
+ */
+ static public function define_decode_contents() {
+
+ $contents = array();
+
+ $fields = array('correctfeedback', 'partiallycorrectfeedback', 'incorrectfeedback');
+ $contents[] = new restore_decode_content('question_gapselect', $fields, 'question_gapselect');
+
+ return $contents;
+ }
+}
