MDL-47494 ddimageortext: Update quiz and questions backup and restore.

This does not include user data yet, and it needs more testing.
This commit is contained in:
Tim Hunt
2011-03-02 17:42:51 +00:00
parent 81f5dc53f1
commit 01bac81a41
2 changed files with 220 additions and 0 deletions
@@ -0,0 +1,84 @@
<?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 ddwtos questions
*
* @copyright 2011 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class backup_qtype_ddwtos_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', 'ddwtos');
// 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
$ddwtos = new backup_nested_element('ddwtos', array('id'), array(
'shuffleanswers', 'correctfeedback', 'correctfeedbackformat',
'partiallycorrectfeedback', 'partiallycorrectfeedbackformat',
'incorrectfeedback', 'incorrectfeedbackformat', 'shownumcorrect'));
// Now the own qtype tree
$pluginwrapper->add_child($ddwtos);
// set source to populate the data
$ddwtos->set_source_table('question_ddwtos', 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');
}
}
@@ -0,0 +1,136 @@
<?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 ddwtos qtype plugin
*
* @copyright 2011 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class restore_qtype_ddwtos_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 = 'ddwtos';
$elepath = $this->get_pathfor('/ddwtos'); // we used get_recommended_name() so this works
$paths[] = new restore_path_element($elename, $elepath);
return $paths; // And we return the interesting paths
}
/**
* Process the qtype/ddwtos element
*/
public function process_ddwtos($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', $oldquestionid) ? true : false;
// If the question has been created by restore, we need to create its question_ddwtos too
if ($questioncreated) {
// Adjust some columns
$data->questionid = $newquestionid;
// Insert record
$newitemid = $DB->insert_record('question_ddwtos', $data);
// Create mapping (needed for decoding links)
$this->set_mapping('question_ddwtos', $oldid, $newitemid);
} else {
// Nothing to remap if the question already existed
}
}
/**
* Given one question_states record, return the answer
* recoded pointing to all the restored stuff for ddwtos questions
*
* answer are two (hypen speparated) lists of comma separated question_answers
* the first to specify the order of the answers and the second to specify the
* responses. Note the order list (the first one) can be optional
*/
public function recode_state_answer($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_ddwtos', $fields, 'question_ddwtos');
return $contents;
}
}