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634 lines
24 KiB
634 lines
24 KiB
<?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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* This file contains the definition for the library class for file submission plugin
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*
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* This class provides all the functionality for the new assign module.
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*
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* @package assignsubmission_file
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* @copyright 2012 NetSpot {@link http://www.netspot.com.au}
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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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defined('MOODLE_INTERNAL') || die();
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// File areas for file submission assignment.
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define('ASSIGNSUBMISSION_FILE_MAXSUMMARYFILES', 5);
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define('ASSIGNSUBMISSION_FILE_FILEAREA', 'submission_files');
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/**
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* Library class for file submission plugin extending submission plugin base class
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*
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* @package assignsubmission_file
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* @copyright 2012 NetSpot {@link http://www.netspot.com.au}
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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 assign_submission_file extends assign_submission_plugin {
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/**
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* Get the name of the file submission plugin
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* @return string
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*/
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public function get_name() {
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return get_string('file', 'assignsubmission_file');
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}
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/**
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* Get file submission information from the database
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*
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* @param int $submissionid
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* @return mixed
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*/
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private function get_file_submission($submissionid) {
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global $DB;
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return $DB->get_record('assignsubmission_file', array('submission'=>$submissionid));
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}
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/**
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* Get the default setting for file submission plugin
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*
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* @param MoodleQuickForm $mform The form to add elements to
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* @return void
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*/
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public function get_settings(MoodleQuickForm $mform) {
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global $CFG, $COURSE;
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if ($this->assignment->has_instance()) {
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$defaultmaxfilesubmissions = $this->get_config('maxfilesubmissions');
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$defaultmaxsubmissionsizebytes = $this->get_config('maxsubmissionsizebytes');
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$defaultfiletypes = $this->get_config('filetypeslist');
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} else {
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$defaultmaxfilesubmissions = get_config('assignsubmission_file', 'maxfiles');
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$defaultmaxsubmissionsizebytes = get_config('assignsubmission_file', 'maxbytes');
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$defaultfiletypes = get_config('assignsubmission_file', 'filetypes');
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}
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$defaultfiletypes = (string)$defaultfiletypes;
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$settings = array();
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$options = array();
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for ($i = 1; $i <= get_config('assignsubmission_file', 'maxfiles'); $i++) {
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$options[$i] = $i;
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}
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$name = get_string('maxfilessubmission', 'assignsubmission_file');
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$mform->addElement('select', 'assignsubmission_file_maxfiles', $name, $options);
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$mform->addHelpButton('assignsubmission_file_maxfiles',
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'maxfilessubmission',
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'assignsubmission_file');
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$mform->setDefault('assignsubmission_file_maxfiles', $defaultmaxfilesubmissions);
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$mform->hideIf('assignsubmission_file_maxfiles', 'assignsubmission_file_enabled', 'notchecked');
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$choices = get_max_upload_sizes($CFG->maxbytes,
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$COURSE->maxbytes,
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get_config('assignsubmission_file', 'maxbytes'));
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$settings[] = array('type' => 'select',
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'name' => 'maxsubmissionsizebytes',
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'description' => get_string('maximumsubmissionsize', 'assignsubmission_file'),
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'options'=> $choices,
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'default'=> $defaultmaxsubmissionsizebytes);
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$name = get_string('maximumsubmissionsize', 'assignsubmission_file');
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$mform->addElement('select', 'assignsubmission_file_maxsizebytes', $name, $choices);
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$mform->addHelpButton('assignsubmission_file_maxsizebytes',
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'maximumsubmissionsize',
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'assignsubmission_file');
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$mform->setDefault('assignsubmission_file_maxsizebytes', $defaultmaxsubmissionsizebytes);
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$mform->hideIf('assignsubmission_file_maxsizebytes',
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'assignsubmission_file_enabled',
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'notchecked');
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$name = get_string('acceptedfiletypes', 'assignsubmission_file');
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$mform->addElement('filetypes', 'assignsubmission_file_filetypes', $name);
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$mform->addHelpButton('assignsubmission_file_filetypes', 'acceptedfiletypes', 'assignsubmission_file');
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$mform->setDefault('assignsubmission_file_filetypes', $defaultfiletypes);
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$mform->hideIf('assignsubmission_file_filetypes', 'assignsubmission_file_enabled', 'notchecked');
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}
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/**
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* Save the settings for file submission plugin
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*
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* @param stdClass $data
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* @return bool
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*/
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public function save_settings(stdClass $data) {
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$this->set_config('maxfilesubmissions', $data->assignsubmission_file_maxfiles);
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$this->set_config('maxsubmissionsizebytes', $data->assignsubmission_file_maxsizebytes);
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if (!empty($data->assignsubmission_file_filetypes)) {
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$this->set_config('filetypeslist', $data->assignsubmission_file_filetypes);
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} else {
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$this->set_config('filetypeslist', '');
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}
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return true;
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}
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/**
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* File format options
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*
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* @return array
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*/
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private function get_file_options() {
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$fileoptions = array('subdirs' => 1,
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'maxbytes' => $this->get_config('maxsubmissionsizebytes'),
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'maxfiles' => $this->get_config('maxfilesubmissions'),
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'accepted_types' => $this->get_configured_typesets(),
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'return_types' => (FILE_INTERNAL | FILE_CONTROLLED_LINK));
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if ($fileoptions['maxbytes'] == 0) {
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// Use module default.
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$fileoptions['maxbytes'] = get_config('assignsubmission_file', 'maxbytes');
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}
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return $fileoptions;
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}
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/**
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* Add elements to submission form
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*
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* @param mixed $submission stdClass|null
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* @param MoodleQuickForm $mform
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* @param stdClass $data
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* @return bool
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*/
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public function get_form_elements($submission, MoodleQuickForm $mform, stdClass $data) {
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global $OUTPUT;
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if ($this->get_config('maxfilesubmissions') <= 0) {
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return false;
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}
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$fileoptions = $this->get_file_options();
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$submissionid = $submission ? $submission->id : 0;
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$data = file_prepare_standard_filemanager($data,
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'files',
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$fileoptions,
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$this->assignment->get_context(),
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'assignsubmission_file',
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ASSIGNSUBMISSION_FILE_FILEAREA,
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$submissionid);
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$mform->addElement('filemanager', 'files_filemanager', $this->get_name(), null, $fileoptions);
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return true;
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}
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/**
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* Count the number of files
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*
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* @param int $submissionid
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* @param string $area
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* @return int
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*/
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private function count_files($submissionid, $area) {
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$fs = get_file_storage();
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$files = $fs->get_area_files($this->assignment->get_context()->id,
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'assignsubmission_file',
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$area,
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$submissionid,
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'id',
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false);
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return count($files);
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}
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/**
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* Save the files and trigger plagiarism plugin, if enabled,
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* to scan the uploaded files via events trigger
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*
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* @param stdClass $submission
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* @param stdClass $data
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* @return bool
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*/
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public function save(stdClass $submission, stdClass $data) {
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global $USER, $DB;
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$fileoptions = $this->get_file_options();
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$data = file_postupdate_standard_filemanager($data,
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'files',
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$fileoptions,
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$this->assignment->get_context(),
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'assignsubmission_file',
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ASSIGNSUBMISSION_FILE_FILEAREA,
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$submission->id);
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$filesubmission = $this->get_file_submission($submission->id);
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// Plagiarism code event trigger when files are uploaded.
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$fs = get_file_storage();
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$files = $fs->get_area_files($this->assignment->get_context()->id,
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'assignsubmission_file',
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ASSIGNSUBMISSION_FILE_FILEAREA,
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$submission->id,
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'id',
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false);
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$count = $this->count_files($submission->id, ASSIGNSUBMISSION_FILE_FILEAREA);
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$params = array(
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'context' => context_module::instance($this->assignment->get_course_module()->id),
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'courseid' => $this->assignment->get_course()->id,
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'objectid' => $submission->id,
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'other' => array(
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'content' => '',
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'pathnamehashes' => array_keys($files)
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)
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);
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if (!empty($submission->userid) && ($submission->userid != $USER->id)) {
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$params['relateduserid'] = $submission->userid;
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}
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if ($this->assignment->is_blind_marking()) {
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$params['anonymous'] = 1;
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}
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$event = \assignsubmission_file\event\assessable_uploaded::create($params);
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$event->set_legacy_files($files);
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$event->trigger();
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$groupname = null;
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$groupid = 0;
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// Get the group name as other fields are not transcribed in the logs and this information is important.
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if (empty($submission->userid) && !empty($submission->groupid)) {
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$groupname = $DB->get_field('groups', 'name', array('id' => $submission->groupid), MUST_EXIST);
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$groupid = $submission->groupid;
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} else {
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$params['relateduserid'] = $submission->userid;
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}
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// Unset the objectid and other field from params for use in submission events.
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unset($params['objectid']);
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unset($params['other']);
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$params['other'] = array(
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'submissionid' => $submission->id,
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'submissionattempt' => $submission->attemptnumber,
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'submissionstatus' => $submission->status,
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'filesubmissioncount' => $count,
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'groupid' => $groupid,
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'groupname' => $groupname
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);
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if ($filesubmission) {
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$filesubmission->numfiles = $this->count_files($submission->id,
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ASSIGNSUBMISSION_FILE_FILEAREA);
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$updatestatus = $DB->update_record('assignsubmission_file', $filesubmission);
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$params['objectid'] = $filesubmission->id;
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$event = \assignsubmission_file\event\submission_updated::create($params);
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$event->set_assign($this->assignment);
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$event->trigger();
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return $updatestatus;
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} else {
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$filesubmission = new stdClass();
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$filesubmission->numfiles = $this->count_files($submission->id,
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ASSIGNSUBMISSION_FILE_FILEAREA);
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$filesubmission->submission = $submission->id;
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$filesubmission->assignment = $this->assignment->get_instance()->id;
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$filesubmission->id = $DB->insert_record('assignsubmission_file', $filesubmission);
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$params['objectid'] = $filesubmission->id;
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$event = \assignsubmission_file\event\submission_created::create($params);
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$event->set_assign($this->assignment);
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$event->trigger();
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return $filesubmission->id > 0;
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}
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}
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/**
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* Remove files from this submission.
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*
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* @param stdClass $submission The submission
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* @return boolean
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*/
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public function remove(stdClass $submission) {
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$fs = get_file_storage();
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$fs->delete_area_files($this->assignment->get_context()->id,
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'assignsubmission_file',
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ASSIGNSUBMISSION_FILE_FILEAREA,
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$submission->id);
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return true;
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}
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/**
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* Produce a list of files suitable for export that represent this feedback or submission
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*
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* @param stdClass $submission The submission
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* @param stdClass $user The user record - unused
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* @return array - return an array of files indexed by filename
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*/
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public function get_files(stdClass $submission, stdClass $user) {
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$result = array();
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$fs = get_file_storage();
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$files = $fs->get_area_files($this->assignment->get_context()->id,
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'assignsubmission_file',
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ASSIGNSUBMISSION_FILE_FILEAREA,
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$submission->id,
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'timemodified',
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false);
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foreach ($files as $file) {
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// Do we return the full folder path or just the file name?
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if (isset($submission->exportfullpath) && $submission->exportfullpath == false) {
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$result[$file->get_filename()] = $file;
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} else {
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$result[$file->get_filepath().$file->get_filename()] = $file;
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}
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}
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return $result;
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}
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/**
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* Display the list of files in the submission status table
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*
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* @param stdClass $submission
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* @param bool $showviewlink Set this to true if the list of files is long
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* @return string
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*/
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public function view_summary(stdClass $submission, & $showviewlink) {
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$count = $this->count_files($submission->id, ASSIGNSUBMISSION_FILE_FILEAREA);
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// Show we show a link to view all files for this plugin?
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$showviewlink = $count > ASSIGNSUBMISSION_FILE_MAXSUMMARYFILES;
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if ($count <= ASSIGNSUBMISSION_FILE_MAXSUMMARYFILES) {
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return $this->assignment->render_area_files('assignsubmission_file',
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ASSIGNSUBMISSION_FILE_FILEAREA,
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$submission->id);
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} else {
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return get_string('countfiles', 'assignsubmission_file', $count);
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}
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}
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/**
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* No full submission view - the summary contains the list of files and that is the whole submission
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*
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* @param stdClass $submission
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* @return string
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*/
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public function view(stdClass $submission) {
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return $this->assignment->render_area_files('assignsubmission_file',
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ASSIGNSUBMISSION_FILE_FILEAREA,
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$submission->id);
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}
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/**
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* Return true if this plugin can upgrade an old Moodle 2.2 assignment of this type
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* and version.
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*
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* @param string $type
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* @param int $version
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* @return bool True if upgrade is possible
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*/
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public function can_upgrade($type, $version) {
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$uploadsingletype ='uploadsingle';
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$uploadtype ='upload';
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if (($type == $uploadsingletype || $type == $uploadtype) && $version >= 2011112900) {
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return true;
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}
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return false;
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}
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/**
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* Upgrade the settings from the old assignment
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* to the new plugin based one
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*
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* @param context $oldcontext - the old assignment context
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* @param stdClass $oldassignment - the old assignment data record
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* @param string $log record log events here
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* @return bool Was it a success? (false will trigger rollback)
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*/
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public function upgrade_settings(context $oldcontext, stdClass $oldassignment, & $log) {
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global $DB;
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if ($oldassignment->assignmenttype == 'uploadsingle') {
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$this->set_config('maxfilesubmissions', 1);
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$this->set_config('maxsubmissionsizebytes', $oldassignment->maxbytes);
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return true;
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} else if ($oldassignment->assignmenttype == 'upload') {
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$this->set_config('maxfilesubmissions', $oldassignment->var1);
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$this->set_config('maxsubmissionsizebytes', $oldassignment->maxbytes);
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// Advanced file upload uses a different setting to do the same thing.
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$DB->set_field('assign',
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'submissiondrafts',
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$oldassignment->var4,
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array('id'=>$this->assignment->get_instance()->id));
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// Convert advanced file upload "hide description before due date" setting.
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$alwaysshow = 0;
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if (!$oldassignment->var3) {
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$alwaysshow = 1;
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}
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$DB->set_field('assign',
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'alwaysshowdescription',
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$alwaysshow,
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array('id'=>$this->assignment->get_instance()->id));
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return true;
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}
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}
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/**
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* Upgrade the submission from the old assignment to the new one
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*
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* @param context $oldcontext The context of the old assignment
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* @param stdClass $oldassignment The data record for the old oldassignment
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* @param stdClass $oldsubmission The data record for the old submission
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* @param stdClass $submission The data record for the new submission
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* @param string $log Record upgrade messages in the log
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* @return bool true or false - false will trigger a rollback
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*/
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public function upgrade(context $oldcontext,
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stdClass $oldassignment,
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stdClass $oldsubmission,
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stdClass $submission,
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& $log) {
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global $DB;
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$filesubmission = new stdClass();
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$filesubmission->numfiles = $oldsubmission->numfiles;
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$filesubmission->submission = $submission->id;
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$filesubmission->assignment = $this->assignment->get_instance()->id;
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if (!$DB->insert_record('assignsubmission_file', $filesubmission) > 0) {
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$log .= get_string('couldnotconvertsubmission', 'mod_assign', $submission->userid);
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return false;
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}
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// Now copy the area files.
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$this->assignment->copy_area_files_for_upgrade($oldcontext->id,
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'mod_assignment',
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'submission',
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$oldsubmission->id,
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$this->assignment->get_context()->id,
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'assignsubmission_file',
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ASSIGNSUBMISSION_FILE_FILEAREA,
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$submission->id);
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return true;
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}
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/**
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* The assignment has been deleted - cleanup
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*
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* @return bool
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*/
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public function delete_instance() {
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global $DB;
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// Will throw exception on failure.
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$DB->delete_records('assignsubmission_file',
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array('assignment'=>$this->assignment->get_instance()->id));
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Formatting for log info
|
|
*
|
|
* @param stdClass $submission The submission
|
|
* @return string
|
|
*/
|
|
public function format_for_log(stdClass $submission) {
|
|
// Format the info for each submission plugin (will be added to log).
|
|
$filecount = $this->count_files($submission->id, ASSIGNSUBMISSION_FILE_FILEAREA);
|
|
|
|
return get_string('numfilesforlog', 'assignsubmission_file', $filecount);
|
|
}
|
|
|
|
/**
|
|
* Return true if there are no submission files
|
|
* @param stdClass $submission
|
|
*/
|
|
public function is_empty(stdClass $submission) {
|
|
return $this->count_files($submission->id, ASSIGNSUBMISSION_FILE_FILEAREA) == 0;
|
|
}
|
|
|
|
/**
|
|
* Determine if a submission is empty
|
|
*
|
|
* This is distinct from is_empty in that it is intended to be used to
|
|
* determine if a submission made before saving is empty.
|
|
*
|
|
* @param stdClass $data The submission data
|
|
* @return bool
|
|
*/
|
|
public function submission_is_empty(stdClass $data) {
|
|
global $USER;
|
|
$fs = get_file_storage();
|
|
// Get a count of all the draft files, excluding any directories.
|
|
$files = $fs->get_area_files(context_user::instance($USER->id)->id,
|
|
'user',
|
|
'draft',
|
|
$data->files_filemanager,
|
|
'id',
|
|
false);
|
|
return count($files) == 0;
|
|
}
|
|
|
|
/**
|
|
* Get file areas returns a list of areas this plugin stores files
|
|
* @return array - An array of fileareas (keys) and descriptions (values)
|
|
*/
|
|
public function get_file_areas() {
|
|
return array(ASSIGNSUBMISSION_FILE_FILEAREA=>$this->get_name());
|
|
}
|
|
|
|
/**
|
|
* Copy the student's submission from a previous submission. Used when a student opts to base their resubmission
|
|
* on the last submission.
|
|
* @param stdClass $sourcesubmission
|
|
* @param stdClass $destsubmission
|
|
*/
|
|
public function copy_submission(stdClass $sourcesubmission, stdClass $destsubmission) {
|
|
global $DB;
|
|
|
|
// Copy the files across.
|
|
$contextid = $this->assignment->get_context()->id;
|
|
$fs = get_file_storage();
|
|
$files = $fs->get_area_files($contextid,
|
|
'assignsubmission_file',
|
|
ASSIGNSUBMISSION_FILE_FILEAREA,
|
|
$sourcesubmission->id,
|
|
'id',
|
|
false);
|
|
foreach ($files as $file) {
|
|
$fieldupdates = array('itemid' => $destsubmission->id);
|
|
$fs->create_file_from_storedfile($fieldupdates, $file);
|
|
}
|
|
|
|
// Copy the assignsubmission_file record.
|
|
if ($filesubmission = $this->get_file_submission($sourcesubmission->id)) {
|
|
unset($filesubmission->id);
|
|
$filesubmission->submission = $destsubmission->id;
|
|
$DB->insert_record('assignsubmission_file', $filesubmission);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Return a description of external params suitable for uploading a file submission from a webservice.
|
|
*
|
|
* @return external_description|null
|
|
*/
|
|
public function get_external_parameters() {
|
|
return array(
|
|
'files_filemanager' => new external_value(
|
|
PARAM_INT,
|
|
'The id of a draft area containing files for this submission.',
|
|
VALUE_OPTIONAL
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Return the plugin configs for external functions.
|
|
*
|
|
* @return array the list of settings
|
|
* @since Moodle 3.2
|
|
*/
|
|
public function get_config_for_external() {
|
|
global $CFG;
|
|
|
|
$configs = $this->get_config();
|
|
|
|
// Get a size in bytes.
|
|
if ($configs->maxsubmissionsizebytes == 0) {
|
|
$configs->maxsubmissionsizebytes = get_max_upload_file_size($CFG->maxbytes, $this->assignment->get_course()->maxbytes,
|
|
get_config('assignsubmission_file', 'maxbytes'));
|
|
}
|
|
return (array) $configs;
|
|
}
|
|
|
|
/**
|
|
* Get the type sets configured for this assignment.
|
|
*
|
|
* @return array('groupname', 'mime/type', ...)
|
|
*/
|
|
private function get_configured_typesets() {
|
|
$typeslist = (string)$this->get_config('filetypeslist');
|
|
|
|
$util = new \core_form\filetypes_util();
|
|
$sets = $util->normalize_file_types($typeslist);
|
|
|
|
return $sets;
|
|
}
|
|
}
|
|
|