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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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namespace local_listcoursefiles\components;
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use local_listcoursefiles\course_file;
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/**
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* Class mod_book
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* @package local_listcoursefiles
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* @author Jeremy FitzPatrick
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* @copyright 2022 Te Wānanga o Aotearoa
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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 mod_book extends course_file {
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/**
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* Try to get the download url for a file.
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*
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* @return null|\moodle_url
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* @throws \moodle_exception
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*/
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protected function get_file_download_url(): ?\moodle_url {
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if ($this->file->filearea == 'chapter') {
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return $this->get_standard_file_download_url();
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}
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return parent::get_file_download_url();
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}
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/**
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* Creates the URL for the editor where the file is added
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*
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* @return \moodle_url|null
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* @throws \dml_exception
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* @throws \moodle_exception
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*/
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protected function get_edit_url(): ?\moodle_url {
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global $DB;
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if ($this->file->filearea === 'chapter') { // Just checking description for now.
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$ctx = $DB->get_record('context', ['id' => $this->file->contextid]);
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return new \moodle_url('/mod/book/edit.php', ['cmid' => $ctx->instanceid, 'id' => $this->file->itemid]);
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}
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return parent::get_edit_url();
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}
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/**
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* Checks if embedded files have been used
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*
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* @return bool|null
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* @throws \dml_exception
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*/
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protected function is_file_used(): ?bool {
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// File areas = intro, chapter.
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global $DB;
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if ($this->file->filearea === 'chapter') {
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$chapter = $DB->get_record('book_chapters', ['id' => $this->file->itemid]);
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return $this->is_embedded_file_used($chapter, 'content', $this->file->filename);
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}
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return parent::is_file_used();
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}
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}
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