/mod/assignment/type/uploadsingle/assignment.class.php
PHP | 472 lines | 334 code | 77 blank | 61 comment | 59 complexity | 6392d5ee7861f1510c9f60f9923f80c5 MD5 | raw file
Possible License(s): MPL-2.0-no-copyleft-exception, LGPL-3.0, GPL-3.0, LGPL-2.1, Apache-2.0, BSD-3-Clause, AGPL-3.0
- <?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/>.
- /**
- * Extend the base assignment class for assignments where you upload a single file
- *
- * @package mod-assignment
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
- require_once($CFG->dirroot.'/mod/assignment/lib.php');
- require_once(dirname(__FILE__).'/upload_form.php');
- class assignment_uploadsingle extends assignment_base {
- function print_student_answer($userid, $return=false){
- global $CFG, $USER, $OUTPUT;
- $fs = get_file_storage();
- $browser = get_file_browser();
- $output = '';
- if ($submission = $this->get_submission($userid)) {
- if ($files = $fs->get_area_files($this->context->id, 'mod_assignment', 'submission', $submission->id, "timemodified", false)) {
- foreach ($files as $file) {
- $filename = $file->get_filename();
- $found = true;
- $mimetype = $file->get_mimetype();
- $path = file_encode_url($CFG->wwwroot.'/pluginfile.php', '/'.$this->context->id.'/mod_assignment/submission/'.$submission->id.'/'.$filename);
- $output .= '<a href="'.$path.'" >'.$OUTPUT->pix_icon(file_file_icon($file), get_mimetype_description($file), 'moodle', array('class' => 'icon')).s($filename).'</a><br />';
- $output .= plagiarism_get_links(array('userid'=>$userid, 'file'=>$file, 'cmid'=>$this->cm->id, 'course'=>$this->course, 'assignment'=>$this->assignment));
- $output .='<br/>';
- }
- }
- }
- $output = '<div class="files">'.$output.'</div>';
- return $output;
- }
- function assignment_uploadsingle($cmid='staticonly', $assignment=NULL, $cm=NULL, $course=NULL) {
- parent::assignment_base($cmid, $assignment, $cm, $course);
- $this->type = 'uploadsingle';
- }
- function view() {
- global $USER, $OUTPUT;
- $context = context_module::instance($this->cm->id);
- require_capability('mod/assignment:view', $context);
- add_to_log($this->course->id, "assignment", "view", "view.php?id={$this->cm->id}", $this->assignment->id, $this->cm->id);
- $this->view_header();
- $this->view_intro();
- $this->view_dates();
- $filecount = false;
- if ($submission = $this->get_submission($USER->id)) {
- $filecount = $this->count_user_files($submission->id);
- if ($submission->timemarked) {
- $this->view_feedback($submission);
- }
- if ($filecount) {
- echo $OUTPUT->box($this->print_user_files($USER->id, true), 'generalbox boxaligncenter');
- }
- }
- if (is_enrolled($this->context, $USER, 'mod/assignment:submit') && $this->isopen() && (!$filecount || $this->assignment->resubmit || !$submission->timemarked)) {
- $this->view_upload_form();
- }
- $this->view_footer();
- }
- /**
- * Display the response file to the student
- *
- * This default method prints the response file
- *
- * @param object $submission The submission object
- */
- function view_responsefile($submission) {
- $fs = get_file_storage();
- $noresponsefiles = $fs->is_area_empty($this->context->id, 'mod_assignment', 'response', $submission->id);
- if (!$noresponsefiles) {
- echo '<tr>';
- echo '<td class="left side"> </td>';
- echo '<td class="content">';
- echo $this->print_responsefiles($submission->userid);
- echo '</td></tr>';
- }
- }
- function process_feedback($formdata=null) {
- if (!$feedback = data_submitted() or !confirm_sesskey()) { // No incoming data?
- return false;
- }
- $userid = required_param('userid', PARAM_INT);
- $offset = required_param('offset', PARAM_INT);
- $mform = $this->display_submission($offset, $userid, false);
- parent::process_feedback($mform);
- }
- /**
- * Counts all complete (real) assignment submissions by enrolled students. This overrides assignment_base::count_real_submissions().
- * This is necessary for simple file uploads where we need to check that the numfiles field is greater than zero to determine if a
- * submission is complete.
- *
- * @param int $groupid (optional) If nonzero then count is restricted to this group
- * @return int The number of submissions
- */
- function count_real_submissions($groupid=0) {
- global $DB;
- // Grab the context assocated with our course module
- $context = context_module::instance($this->cm->id);
- // Get ids of users enrolled in the given course.
- list($enroledsql, $params) = get_enrolled_sql($context, 'mod/assignment:submit', $groupid);
- $params['assignmentid'] = $this->cm->instance;
- // Get ids of users enrolled in the given course.
- return $DB->count_records_sql("SELECT COUNT('x')
- FROM {assignment_submissions} s
- LEFT JOIN {assignment} a ON a.id = s.assignment
- INNER JOIN ($enroledsql) u ON u.id = s.userid
- WHERE s.assignment = :assignmentid AND
- s.numfiles > 0", $params);
- }
- function print_responsefiles($userid, $return=false) {
- global $OUTPUT, $PAGE;
- $output = $OUTPUT->box_start('responsefiles');
- if ($submission = $this->get_submission($userid)) {
- $renderer = $PAGE->get_renderer('mod_assignment');
- $output .= $renderer->assignment_files($this->context, $submission->id, 'response');
- }
- $output .= $OUTPUT->box_end();
- if ($return) {
- return $output;
- }
- echo $output;
- }
- function can_manage_responsefiles() {
- if (has_capability('mod/assignment:grade', $this->context)) {
- return true;
- } else {
- return false;
- }
- }
- function view_upload_form() {
- global $OUTPUT, $USER;
- echo $OUTPUT->box_start('uploadbox');
- $fs = get_file_storage();
- // edit files in another page
- if ($submission = $this->get_submission($USER->id)) {
- if ($files = $fs->get_area_files($this->context->id, 'mod_assignment', 'submission', $submission->id, "timemodified", false)) {
- $str = get_string('editthisfile', 'assignment');
- } else {
- $str = get_string('uploadafile', 'assignment');
- }
- } else {
- $str = get_string('uploadafile', 'assignment');
- }
- echo $OUTPUT->single_button(new moodle_url('/mod/assignment/type/uploadsingle/upload.php', array('contextid'=>$this->context->id, 'userid'=>$USER->id)), $str, 'get');
- echo $OUTPUT->box_end();
- }
- function upload($mform) {
- $action = required_param('action', PARAM_ALPHA);
- switch ($action) {
- case 'uploadresponse':
- $this->upload_responsefile($mform);
- break;
- case 'uploadfile':
- $this->upload_file($mform);
- }
- }
- function upload_file($mform) {
- global $CFG, $USER, $DB, $OUTPUT;
- $viewurl = new moodle_url('/mod/assignment/view.php', array('id'=>$this->cm->id));
- if (!is_enrolled($this->context, $USER, 'mod/assignment:submit')) {
- redirect($viewurl);
- }
- $submission = $this->get_submission($USER->id);
- $filecount = 0;
- if ($submission) {
- $filecount = $this->count_user_files($submission->id);
- }
- if ($this->isopen() && (!$filecount || $this->assignment->resubmit || !$submission->timemarked)) {
- if ($submission = $this->get_submission($USER->id)) {
- //TODO: change later to ">= 0", to prevent resubmission when graded 0
- if (($submission->grade > 0) and !$this->assignment->resubmit) {
- redirect($viewurl, get_string('alreadygraded', 'assignment'));
- }
- }
- if ($formdata = $mform->get_data()) {
- $fs = get_file_storage();
- $submission = $this->get_submission($USER->id, true); //create new submission if needed
- $fs->delete_area_files($this->context->id, 'mod_assignment', 'submission', $submission->id);
- if ($newfilename = $mform->get_new_filename('assignment_file')) {
- $file = $mform->save_stored_file('assignment_file', $this->context->id, 'mod_assignment', 'submission',
- $submission->id, '/', $newfilename);
- $updates = new stdClass(); //just enough data for updating the submission
- $updates->timemodified = time();
- $updates->numfiles = 1;
- $updates->id = $submission->id;
- $DB->update_record('assignment_submissions', $updates);
- add_to_log($this->course->id, 'assignment', 'upload', 'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
- $this->update_grade($submission);
- $this->email_teachers($submission);
- // Let Moodle know that an assessable file was uploaded (eg for plagiarism detection)
- $eventdata = new stdClass();
- $eventdata->modulename = 'assignment';
- $eventdata->cmid = $this->cm->id;
- $eventdata->itemid = $submission->id;
- $eventdata->courseid = $this->course->id;
- $eventdata->userid = $USER->id;
- $eventdata->file = $file; // This is depreceated - please use pathnamehashes instead!
- $eventdata->pathnamehashes = array($file->get_pathnamehash());
- events_trigger('assessable_file_uploaded', $eventdata);
- }
- redirect($viewurl, get_string('uploadedfile'));
- } else {
- redirect($viewurl, get_string('uploaderror', 'assignment')); //submitting not allowed!
- }
- }
- redirect($viewurl);
- }
- function upload_responsefile($mform) {
- global $CFG, $USER, $OUTPUT, $PAGE;
- $userid = required_param('userid', PARAM_INT);
- $mode = required_param('mode', PARAM_ALPHA);
- $offset = required_param('offset', PARAM_INT);
- $returnurl = new moodle_url("/mod/assignment/submissions.php", array('id'=>$this->cm->id,'userid'=>$userid,'mode'=>$mode,'offset'=>$offset)); //not xhtml, just url.
- if ($formdata = $mform->get_data() and $this->can_manage_responsefiles()) {
- $fs = get_file_storage();
- $submission = $this->get_submission($userid, true); //create new submission if needed
- $fs->delete_area_files($this->context->id, 'mod_assignment', 'response', $submission->id);
- if ($newfilename = $mform->get_new_filename('assignment_file')) {
- $file = $mform->save_stored_file('assignment_file', $this->context->id,
- 'mod_assignment', 'response',$submission->id, '/', $newfilename);
- }
- redirect($returnurl, get_string('uploadedfile'));
- } else {
- redirect($returnurl, get_string('uploaderror', 'assignment')); //submitting not allowed!
- }
- }
- function setup_elements(&$mform) {
- global $CFG, $COURSE;
- $ynoptions = array( 0 => get_string('no'), 1 => get_string('yes'));
- $mform->addElement('select', 'resubmit', get_string('allowresubmit', 'assignment'), $ynoptions);
- $mform->addHelpButton('resubmit', 'allowresubmit', 'assignment');
- $mform->setDefault('resubmit', 0);
- $mform->addElement('select', 'emailteachers', get_string('emailteachers', 'assignment'), $ynoptions);
- $mform->addHelpButton('emailteachers', 'emailteachers', 'assignment');
- $mform->setDefault('emailteachers', 0);
- $choices = get_max_upload_sizes($CFG->maxbytes, $COURSE->maxbytes);
- $mform->addElement('select', 'maxbytes', get_string('maximumsize', 'assignment'), $choices);
- $mform->setDefault('maxbytes', $CFG->assignment_maxbytes);
- $course_context = context_course::instance($COURSE->id);
- plagiarism_get_form_elements_module($mform, $course_context, 'mod_assignment');
- }
- function portfolio_exportable() {
- return true;
- }
- function send_file($filearea, $args, $forcedownload, array $options=array()) {
- global $CFG, $DB, $USER;
- require_once($CFG->libdir.'/filelib.php');
- require_login($this->course, false, $this->cm);
- if ($filearea !== 'submission' && $filearea !== 'response') {
- return false;
- }
- $submissionid = (int)array_shift($args);
- if (!$submission = $DB->get_record('assignment_submissions', array('assignment'=>$this->assignment->id, 'id'=>$submissionid))) {
- return false;
- }
- if ($USER->id != $submission->userid and !has_capability('mod/assignment:grade', $this->context)) {
- return false;
- }
- $relativepath = implode('/', $args);
- $fullpath = '/'.$this->context->id.'/mod_assignment/'.$filearea.'/'.$submissionid.'/'.$relativepath;
- $fs = get_file_storage();
- if (!$file = $fs->get_file_by_hash(sha1($fullpath)) or $file->is_directory()) {
- return false;
- }
- send_stored_file($file, 0, 0, true, $options); // download MUST be forced - security!
- }
- function extend_settings_navigation($node) {
- global $CFG, $USER, $OUTPUT;
- // get users submission if there is one
- $submission = $this->get_submission();
- if (is_enrolled($this->context, $USER, 'mod/assignment:submit')) {
- $editable = $this->isopen() && (!$submission || $this->assignment->resubmit || !$submission->timemarked);
- } else {
- $editable = false;
- }
- // If the user has submitted something add some related links and data
- if (isset($submission->numfiles) AND $submission->numfiles) {
- // Add a view link to the settings nav
- $link = new moodle_url('/mod/assignment/view.php', array('id'=>$this->cm->id));
- $node->add(get_string('viewmysubmission', 'assignment'), $link, navigation_node::TYPE_SETTING);
- if (!empty($submission->timemodified)) {
- $submissionnode = $node->add(get_string('submitted', 'assignment') . ' ' . userdate($submission->timemodified));
- $submissionnode->text = preg_replace('#([^,])\s#', '$1 ', $submissionnode->text);
- $submissionnode->add_class('note');
- if ($submission->timemodified <= $this->assignment->timedue || empty($this->assignment->timedue)) {
- $submissionnode->add_class('early');
- } else {
- $submissionnode->add_class('late');
- }
- }
- }
- // Check if the user has uploaded any files, if so we can add some more stuff to the settings nav
- if ($submission && is_enrolled($this->context, $USER, 'mod/assignment:submit') && $this->count_user_files($submission->id)) {
- $fs = get_file_storage();
- if ($files = $fs->get_area_files($this->context->id, 'mod_assignment', 'submission', $submission->id, "timemodified", false)) {
- $filenode = $node->add(get_string('submission', 'assignment'));
- foreach ($files as $file) {
- $filename = $file->get_filename();
- $mimetype = $file->get_mimetype();
- $link = moodle_url::make_pluginfile_url($this->context->id, 'mod_assignment', 'submission', $submission->id, $file->get_filepath(), $filename);
- $filenode->add($filename, $link, navigation_node::TYPE_SETTING, null, null, new pix_icon(file_file_icon($file), ''));
- }
- }
- }
- }
- /**
- * creates a zip of all assignment submissions and sends a zip to the browser
- */
- function download_submissions() {
- global $CFG,$DB;
- require_once($CFG->libdir.'/filelib.php');
- $submissions = $this->get_submissions('','');
- if (empty($submissions)) {
- print_error('errornosubmissions', 'assignment');
- }
- $filesforzipping = array();
- $fs = get_file_storage();
- $groupmode = groups_get_activity_groupmode($this->cm);
- $groupid = 0; // All users
- $groupname = '';
- if ($groupmode) {
- $groupid = groups_get_activity_group($this->cm, true);
- $groupname = groups_get_group_name($groupid).'-';
- }
- $filename = str_replace(' ', '_', clean_filename($this->course->shortname.'-'.$this->assignment->name.'-'.$groupname.$this->assignment->id.".zip")); //name of new zip file.
- foreach ($submissions as $submission) {
- $a_userid = $submission->userid; //get userid
- if ((groups_is_member($groupid,$a_userid)or !$groupmode or !$groupid)) {
- $a_assignid = $submission->assignment; //get name of this assignment for use in the file names.
- $a_user = $DB->get_record("user", array("id"=>$a_userid),'id,username,firstname,lastname'); //get user firstname/lastname
- $files = $fs->get_area_files($this->context->id, 'mod_assignment', 'submission', $submission->id, "timemodified", false);
- foreach ($files as $file) {
- //get files new name.
- $fileext = strstr($file->get_filename(), '.');
- $fileoriginal = str_replace($fileext, '', $file->get_filename());
- $fileforzipname = clean_filename(fullname($a_user) . "_" . $fileoriginal."_".$a_userid.$fileext);
- //save file name to array for zipping.
- $filesforzipping[$fileforzipname] = $file;
- }
- }
- } // End of foreach
- if ($zipfile = assignment_pack_files($filesforzipping)) {
- send_temp_file($zipfile, $filename); //send file and delete after sending.
- }
- }
- /**
- * Check the given submission is complete. Preliminary rows are often created in the assignment_submissions
- * table before a submission actually takes place. This function checks to see if the given submission has actually
- * been submitted.
- *
- * @param stdClass $submission The submission we want to check for completion
- * @return bool Indicates if the submission was found to be complete
- */
- public function is_submitted_with_required_data($submission) {
- return ($submission->timemodified AND $submission->numfiles > 0);
- }
- }
- class mod_assignment_uploadsingle_response_form extends moodleform {
- function definition() {
- $mform = $this->_form;
- $instance = $this->_customdata;
- // visible elements
- $mform->addElement('filepicker', 'assignment_file', get_string('uploadafile'), null, $instance->options);
- // hidden params
- $mform->addElement('hidden', 'id', $instance->cm->id);
- $mform->setType('id', PARAM_INT);
- $mform->addElement('hidden', 'contextid', $instance->contextid);
- $mform->setType('contextid', PARAM_INT);
- $mform->addElement('hidden', 'action', 'uploadresponse');
- $mform->setType('action', PARAM_ALPHA);
- $mform->addElement('hidden', 'mode', $instance->mode);
- $mform->setType('mode', PARAM_ALPHA);
- $mform->addElement('hidden', 'offset', $instance->offset);
- $mform->setType('offset', PARAM_INT);
- $mform->addElement('hidden', 'forcerefresh' , $instance->forcerefresh);
- $mform->setType('forcerefresh', PARAM_INT);
- $mform->addElement('hidden', 'userid', $instance->userid);
- $mform->setType('userid', PARAM_INT);
- // buttons
- $this->add_action_buttons(false, get_string('uploadthisfile'));
- }
- }