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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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* Statement object (activity, user or group) for xAPI structure checking and usage.
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*
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* @package core_xapi
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* @copyright 2020 Ferran Recio
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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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namespace core_xapi\local\statement;
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use core_xapi\xapi_exception;
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use core_xapi\iri;
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use stdClass;
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defined('MOODLE_INTERNAL') || die();
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/**
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* Abstract object item used in xAPI statements.
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*
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* Object represents the object in which a xAPI verb is applied. There
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* are 3 types of objects supported: agent (user), group (of users) and
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* activity (defined by every plugin).
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*
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* @copyright 2020 Ferran Recio
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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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abstract class item_object extends item {
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/**
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* Create a xAPI object compatible from data (Agent, Group or Activity).
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*
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* @param stdClass $data data structure from statement object
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* @return item item_group|item_agent|item_activity resulting object
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*/
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public static function create_from_data(stdClass $data): item {
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if (!isset($data->objectType)) {
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$data->objectType = 'Activity';
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}
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switch ($data->objectType) {
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case 'Agent':
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return item_agent::create_from_data($data);
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break;
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case 'Group':
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return item_group::create_from_data($data);
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break;
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case 'Activity':
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return item_activity::create_from_data($data);
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break;
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default:
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throw new xapi_exception("Unknown Object type '{$data->objectType}'");
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}
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}
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}
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