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/>.

namespace local_listcoursefiles\components;

use local_listcoursefiles\course_file;

/**
 * Class mod_data
 * @package local_listcoursefiles
 * @author Jeremy FitzPatrick
 * @copyright 2022 Te Wānanga o Aotearoa
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class mod_data extends course_file {
    /**
     * Try to get the download url for a file.
     *
     * @return null|\moodle_url
     * @throws \moodle_exception
     */
    protected function get_file_download_url(): ?\moodle_url {
        if ($this->file->filearea == 'content') {
            return $this->get_standard_file_download_url();
        }
        return parent::get_file_download_url();
    }

    /**
     * Checks if embedded files have been used
     *
     * @return bool|null
     * @throws \dml_exception
     */
    protected function is_file_used(): ?bool {
        // File areas = intro, content.
        global $DB;
        if ($this->file->filearea === 'content') {
            $sql = "SELECT *
                      FROM {data_content} dc
                      JOIN {data_fields} df ON df.id = dc.fieldid
                     WHERE dc.id = ?";
            $data = $DB->get_record_sql($sql, [$this->file->itemid]);
            $path = '@@PLUGINFILE@@/' . rawurlencode($this->file->filename);
            return $data->type !== 'textarea' || false !== strpos($data->content, $path);
        }
        return parent::is_file_used();
    }
}