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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Provides the information to backup question custom field.
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*
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* @package qbank_customfields
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* @copyright 2021 Catalyst IT Australia Pty Ltd
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* @author Matt Porritt <mattp@catalyst-au.net>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class backup_qbank_customfields_plugin extends \backup_qbank_plugin {
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/**
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* Returns the comment information to attach to question element.
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*
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* @return backup_plugin_element The backup plugin element
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*/
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protected function define_question_plugin_structure(): backup_plugin_element {
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// Define the virtual plugin element with the condition to fulfill.
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$plugin = $this->get_plugin_element();
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// Create one standard named plugin element (the visible container).
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$pluginwrapper = new backup_nested_element($this->get_recommended_name());
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// Connect the visible container ASAP.
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$plugin->add_child($pluginwrapper);
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$customfields = new backup_nested_element('customfields');
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$customfield = new backup_nested_element('customfield', ['id'],
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['shortname', 'type', 'value', 'valueformat', 'valuetrust']);
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$pluginwrapper->add_child($customfields);
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$customfields->add_child($customfield);
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$customfield->set_source_sql("SELECT cfd.id, cff.shortname, cff.type, cfd.value, cfd.valueformat, cfd.valuetrust
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FROM {customfield_data} cfd
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JOIN {customfield_field} cff ON cff.id = cfd.fieldid
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JOIN {customfield_category} cfc ON cfc.id = cff.categoryid
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WHERE cfc.component = 'qbank_customfields'
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AND cfc.area = 'question'
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AND cfd.instanceid = ?",
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[
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backup::VAR_PARENTID
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]);
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// Don't need to annotate ids nor files.
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return $plugin;
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}
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}
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