Proyectos de Subversion Moodle

<?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/>.

/**

 * 1.9 to 2.0 backup format converter. (Also currently used in common cartridge import process)

 *

 * @package mod_lti

 * @copyright  Copyright (c) 2011 Moodlerooms Inc. (http://www.moodlerooms.com)

 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 * @author     Darko Miletic

 */

defined('MOODLE_INTERNAL') || die();

class moodle1_mod_lti_handler extends moodle1_mod_handler {

    /** @var moodle1_file_manager */

    protected $fileman = null;

    /** @var int cmid */

    protected $moduleid = null;

    /**

     * Declare the paths in moodle.xml we are able to convert

     *

     * The method returns list of {@link convert_path} instances.

     * For each path returned, the corresponding conversion method must be

     * defined.

     *

     * Note that the path /MOODLE_BACKUP/COURSE/MODULES/MOD/LTI does not

     * actually exist in the file. The last element with the module name was

     * appended by the moodle1_converter class.

     *

     * @return array of {@link convert_path} instances

     */

    public function get_paths() {

        return array(

            new convert_path(

                'basiclti', '/MOODLE_BACKUP/COURSE/MODULES/MOD/LTI'

            )

        );

    }

    /**

     * This is executed every time we have one /MOODLE_BACKUP/COURSE/MODULES/MOD/LTI

     * data available

     */

    public function process_basiclti($data) {

        global $DB;

        // Get the course module id and context id.

        $instanceid     = $data['id'];

        $cminfo         = $this->get_cminfo($instanceid);

        $this->moduleid = $cminfo['id'];

        $contextid      = $this->converter->get_contextid(CONTEXT_MODULE, $this->moduleid);

        // Get a fresh new file manager for this instance.

        $this->fileman = $this->converter->get_file_manager($contextid, 'mod_lti');

        // Convert course files embedded into the intro.

        $this->fileman->filearea = 'intro';

        $this->fileman->itemid   = 0;

        $data['intro'] = moodle1_converter::migrate_referenced_files($data['intro'], $this->fileman);

        // Start writing assignment.xml.

        $this->open_xml_writer("activities/lti_{$this->moduleid}/lti.xml");

        $this->xmlwriter->begin_tag('activity', array('id' => $instanceid, 'moduleid' => $this->moduleid,

                'modulename' => 'lti', 'contextid' => $contextid));

        $this->xmlwriter->begin_tag('lti', array('id' => $instanceid));

        $ignorefields = array('id', 'modtype');

        if (!$DB->record_exists('lti_types', array('id' => $data['typeid']))) {

            $ntypeid = false;

            $toolurls = $DB->get_records_select(

                    'lti_types_config',

                    "name = 'toolurl' AND " . $DB->sql_compare_text('value', 256) . ' = ' .  $DB->sql_compare_text('?', 256),

                    [$data['toolurl']],

                    '',

                    'id, value'

                );

            foreach ($toolurls as $id => $value) {

                if ($value == $data['toolurl']) {

                    $ntypeid = $id;

                    break;

                }

            }

            if ($ntypeid === false) {

                $ntypeid = $DB->get_field('lti_types_config',

                                          'typeid',

                                          array(),

                                          IGNORE_MULTIPLE);

            }

            if ($ntypeid === false) {

                $ntypeid = 0;

            }

            $data['typeid'] = $ntypeid;

        }

        if (empty($data['servicesalt'])) {

            $data['servicesalt'] = uniqid('', true);

        }

        foreach ($data as $field => $value) {

            if (!in_array($field, $ignorefields)) {

                $this->xmlwriter->full_tag($field, $value);

            }

        }

        return $data;

    }

    /**

     * This is executed when we reach the closing </MOD> tag of our 'lti' path

     */

    public function on_basiclti_end() {

        // Finish writing basiclti.xml.

        $this->xmlwriter->end_tag('lti');

        $this->xmlwriter->end_tag('activity');

        $this->close_xml_writer();

        // Write inforef.xml.

        $this->open_xml_writer("activities/lti_{$this->moduleid}/inforef.xml");

        $this->xmlwriter->begin_tag('inforef');

        $this->xmlwriter->begin_tag('fileref');

        foreach ($this->fileman->get_fileids() as $fileid) {

            $this->write_xml('file', array('id' => $fileid));

        }

        $this->xmlwriter->end_tag('fileref');

        $this->xmlwriter->end_tag('inforef');

        $this->close_xml_writer();

    }

}