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<?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 qtype_algebra
* @copyright Roger Moore <rwmoore@ualberta.ca>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Provides the information to backup algebra questions
*/
class backup_qtype_algebra_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', 'algebra');
// 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.
$algebravariables = new backup_nested_element('algebra_variables');
$algebravariable = new backup_nested_element('algebra_variable', array('id'), array(
'name', 'min', 'max'));
$algebra = new backup_nested_element('algebra', array('id'), array(
'compareby', 'nchecks', 'tolerance',
'disallow', 'allowedfuncs', 'answerprefix'));
// Now the own qtype tree.
$pluginwrapper->add_child($algebravariables);
$algebravariables->add_child($algebravariable);
$pluginwrapper->add_child($algebra);
// Set source to populate the data.
$algebra->set_source_table('qtype_algebra_options', array('questionid' => backup::VAR_PARENTID));
$algebravariable->set_source_table('qtype_algebra_variables', array('questionid' => backup::VAR_PARENTID));
// Don't need to annotate ids nor files.
return $plugin;
}
}
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