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<?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/>.
/**
* This file contains the definition for the library class for file feedback plugin
*
*
* @package assignfeedback_offline
* @copyright 2012 NetSpot {@link http://www.netspot.com.au}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once($CFG->dirroot.'/grade/grading/lib.php');
/**
* library class for file feedback plugin extending feedback plugin base class
*
* @package assignfeedback_offline
* @copyright 2012 NetSpot {@link http://www.netspot.com.au}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class assign_feedback_offline extends assign_feedback_plugin {
/** @var boolean|null $enabledcache Cached lookup of the is_enabled function */
private $enabledcache = null;
/**
* Get the name of the file feedback plugin
* @return string
*/
public function get_name() {
return get_string('pluginname', 'assignfeedback_offline');
}
/**
* Get form elements for grading form
*
* @param stdClass $grade
* @param MoodleQuickForm $mform
* @param stdClass $data
* @return bool true if elements were added to the form
*/
public function get_form_elements($grade, MoodleQuickForm $mform, stdClass $data) {
return false;
}
/**
* Return true if there are no feedback files
* @param stdClass $grade
*/
public function is_empty(stdClass $grade) {
return true;
}
/**
* This plugin does not save through the normal interface so this returns false.
*
* @param stdClass $grade The grade.
* @param stdClass $data Form data from the feedback form.
* @return boolean - False
*/
public function is_feedback_modified(stdClass $grade, stdClass $data) {
return false;
}
/**
* Loop through uploaded grades and update the grades for this assignment
*
* @param int $draftid - The unique draft item id for this import
* @param int $importid - The unique import ID for this csv import operation
* @param bool $ignoremodified - Ignore the last modified date when checking fields
* @param string $encoding - Encoding of the file being processed.
* @param string $separator - The character used to separate the information.
* @return string - The html response
*/
public function process_import_grades($draftid, $importid, $ignoremodified, $encoding = 'utf-8', $separator = 'comma') {
global $USER, $DB;
require_sesskey();
require_capability('mod/assign:grade', $this->assignment->get_context());
$gradeimporter = new assignfeedback_offline_grade_importer($importid, $this->assignment, $encoding, $separator);
$context = context_user::instance($USER->id);
$fs = get_file_storage();
if (!$files = $fs->get_area_files($context->id, 'user', 'draft', $draftid, 'id DESC', false)) {
redirect(new moodle_url('view.php',
array('id'=>$this->assignment->get_course_module()->id,
'action'=>'grading')));
return;
}
$file = reset($files);
$csvdata = $file->get_content();
if ($csvdata) {
$gradeimporter->parsecsv($csvdata);
}
if (!$gradeimporter->init()) {
$thisurl = new moodle_url('/mod/assign/view.php', array('action'=>'viewpluginpage',
'pluginsubtype'=>'assignfeedback',
'plugin'=>'offline',
'pluginaction'=>'uploadgrades',
'id' => $this->assignment->get_course_module()->id));
print_error('invalidgradeimport', 'assignfeedback_offline', $thisurl);
return;
}
// Does this assignment use a scale?
$scaleoptions = null;
if ($this->assignment->get_instance()->grade < 0) {
if ($scale = $DB->get_record('scale', array('id'=>-($this->assignment->get_instance()->grade)))) {
$scaleoptions = make_menu_from_list($scale->scale);
}
}
// We may need to upgrade the gradebook comments after this update.
$adminconfig = $this->assignment->get_admin_config();
$gradebookplugin = $adminconfig->feedback_plugin_for_gradebook;
$updatecount = 0;
while ($record = $gradeimporter->next()) {
$user = $record->user;
$modified = $record->modified;
$userdesc = fullname($user);
$usergrade = $this->assignment->get_user_grade($user->id, false);
if (!empty($scaleoptions)) {
// This is a scale - we need to convert any grades to indexes in the scale.
$scaleindex = array_search($record->grade, $scaleoptions);
if ($scaleindex !== false) {
$record->grade = $scaleindex;
} else {
$record->grade = '';
}
} else {
$record->grade = unformat_float($record->grade);
}
// Note: Do not count the seconds when comparing modified dates.
$skip = false;
$stalemodificationdate = ($usergrade && $usergrade->timemodified > ($modified + 60));
if ($usergrade && $usergrade->grade == $record->grade) {
// Skip - grade not modified.
$skip = true;
} else if (!isset($record->grade) || $record->grade === '' || $record->grade < 0) {
// Skip - grade has no value.
$skip = true;
} else if (!$ignoremodified && $stalemodificationdate) {
// Skip - grade has been modified.
$skip = true;
} else if ($this->assignment->grading_disabled($record->user->id)) {
// Skip grade is locked.
$skip = true;
} else if (($this->assignment->get_instance()->grade > -1) &&
(($record->grade < 0) || ($record->grade > $this->assignment->get_instance()->grade))) {
// Out of range.
$skip = true;
}
if (!$skip) {
$grade = $this->assignment->get_user_grade($record->user->id, true);
$grade->grade = $record->grade;
$grade->grader = $USER->id;
if ($this->assignment->update_grade($grade)) {
$this->assignment->notify_grade_modified($grade);
$updatecount += 1;
}
}
if ($ignoremodified || !$stalemodificationdate) {
foreach ($record->feedback as $feedback) {
$plugin = $feedback['plugin'];
$field = $feedback['field'];
$newvalue = $feedback['value'];
$description = $feedback['description'];
$oldvalue = '';
if ($usergrade) {
$oldvalue = $plugin->get_editor_text($field, $usergrade->id);
if (empty($oldvalue)) {
$oldvalue = '';
}
}
if ($newvalue != $oldvalue) {
$updatecount += 1;
$grade = $this->assignment->get_user_grade($record->user->id, true);
$this->assignment->notify_grade_modified($grade);
$plugin->set_editor_text($field, $newvalue, $grade->id);
// If this is the gradebook comments plugin - post an update to the gradebook.
if (($plugin->get_subtype() . '_' . $plugin->get_type()) == $gradebookplugin) {
$grade->feedbacktext = $plugin->text_for_gradebook($grade);
$grade->feedbackformat = $plugin->format_for_gradebook($grade);
$this->assignment->update_grade($grade);
}
}
}
}
}
$gradeimporter->close(true);
$renderer = $this->assignment->get_renderer();
$o = '';
$o .= $renderer->render(new assign_header($this->assignment->get_instance(),
$this->assignment->get_context(),
false,
$this->assignment->get_course_module()->id,
get_string('importgrades', 'assignfeedback_offline')));
$o .= $renderer->box(get_string('updatedgrades', 'assignfeedback_offline', $updatecount));
$url = new moodle_url('view.php',
array('id'=>$this->assignment->get_course_module()->id,
'action'=>'grading'));
$o .= $renderer->continue_button($url);
$o .= $renderer->render_footer();
return $o;
}
/**
* Display upload grades form
*
* @return string The response html
*/
public function upload_grades() {
global $CFG, $USER;
require_capability('mod/assign:grade', $this->assignment->get_context());
require_once($CFG->dirroot . '/mod/assign/feedback/offline/uploadgradesform.php');
require_once($CFG->dirroot . '/mod/assign/feedback/offline/importgradesform.php');
require_once($CFG->dirroot . '/mod/assign/feedback/offline/importgradeslib.php');
require_once($CFG->libdir . '/csvlib.class.php');
$mform = new assignfeedback_offline_upload_grades_form(null,
array('context'=>$this->assignment->get_context(),
'cm'=>$this->assignment->get_course_module()->id));
$o = '';
$confirm = optional_param('confirm', 0, PARAM_BOOL);
$renderer = $this->assignment->get_renderer();
if ($mform->is_cancelled()) {
redirect(new moodle_url('view.php',
array('id'=>$this->assignment->get_course_module()->id,
'action'=>'grading')));
return;
} else if (($data = $mform->get_data()) &&
($csvdata = $mform->get_file_content('gradesfile'))) {
$importid = csv_import_reader::get_new_iid('assignfeedback_offline');
$gradeimporter = new assignfeedback_offline_grade_importer($importid, $this->assignment,
$data->encoding, $data->separator);
// File exists and was valid.
$ignoremodified = !empty($data->ignoremodified);
$draftid = $data->gradesfile;
// Preview import.
$mform = new assignfeedback_offline_import_grades_form(null, array('assignment'=>$this->assignment,
'csvdata'=>$csvdata,
'ignoremodified'=>$ignoremodified,
'gradeimporter'=>$gradeimporter,
'draftid'=>$draftid));
$o .= $renderer->render(new assign_header($this->assignment->get_instance(),
$this->assignment->get_context(),
false,
$this->assignment->get_course_module()->id,
get_string('confirmimport', 'assignfeedback_offline')));
$o .= $renderer->render(new assign_form('confirmimport', $mform));
$o .= $renderer->render_footer();
} else if ($confirm) {
$importid = optional_param('importid', 0, PARAM_INT);
$draftid = optional_param('draftid', 0, PARAM_INT);
$encoding = optional_param('encoding', 'utf-8', PARAM_ALPHANUMEXT);
$separator = optional_param('separator', 'comma', PARAM_ALPHA);
$ignoremodified = optional_param('ignoremodified', 0, PARAM_BOOL);
$gradeimporter = new assignfeedback_offline_grade_importer($importid, $this->assignment, $encoding, $separator);
$mform = new assignfeedback_offline_import_grades_form(null, array('assignment'=>$this->assignment,
'csvdata'=>'',
'ignoremodified'=>$ignoremodified,
'gradeimporter'=>$gradeimporter,
'draftid'=>$draftid));
if ($mform->is_cancelled()) {
redirect(new moodle_url('view.php',
array('id'=>$this->assignment->get_course_module()->id,
'action'=>'grading')));
return;
}
$o .= $this->process_import_grades($draftid, $importid, $ignoremodified, $encoding, $separator);
} else {
$o .= $renderer->render(new assign_header($this->assignment->get_instance(),
$this->assignment->get_context(),
false,
$this->assignment->get_course_module()->id,
get_string('uploadgrades', 'assignfeedback_offline')));
$o .= $renderer->render(new assign_form('batchuploadfiles', $mform));
$o .= $renderer->render_footer();
}
return $o;
}
/**
* Download a marking worksheet
*
* @return string The response html
*/
public function download_grades() {
global $CFG;
require_capability('mod/assign:grade', $this->assignment->get_context());
require_once($CFG->dirroot . '/mod/assign/gradingtable.php');
$groupmode = groups_get_activity_groupmode($this->assignment->get_course_module());
// All users.
$groupid = 0;
$groupname = '';
if ($groupmode) {
$groupid = groups_get_activity_group($this->assignment->get_course_module(), true);
$groupname = groups_get_group_name($groupid) . '-';
}
$filename = clean_filename(get_string('offlinegradingworksheet', 'assignfeedback_offline') . '-' .
$this->assignment->get_course()->shortname . '-' .
$this->assignment->get_instance()->name . '-' .
$groupname .
$this->assignment->get_course_module()->id);
$table = new assign_grading_table($this->assignment, 0, '', 0, false, $filename);
$table->out(0, false);
return;
}
/**
* Print a sub page in this plugin
*
* @param string $action - The plugin action
* @return string The response html
*/
public function view_page($action) {
if ($action == 'downloadgrades') {
return $this->download_grades();
} else if ($action == 'uploadgrades') {
return $this->upload_grades();
}
return '';
}
/**
* Return a list of the grading actions performed by this plugin
* This plugin supports upload zip
*
* @return array The list of grading actions
*/
public function get_grading_actions() {
return array('uploadgrades'=>get_string('uploadgrades', 'assignfeedback_offline'),
'downloadgrades'=>get_string('downloadgrades', 'assignfeedback_offline'));
}
/**
* Override the default is_enabled to disable this plugin if advanced grading is active
*
* @return bool
*/
public function is_enabled() {
if ($this->enabledcache === null) {
$gradingmanager = get_grading_manager($this->assignment->get_context(), 'mod_assign', 'submissions');
$controller = $gradingmanager->get_active_controller();
$active = !empty($controller);
if ($active) {
$this->enabledcache = false;
} else {
$this->enabledcache = parent::is_enabled();
}
}
return $this->enabledcache;
}
/**
* Do not show this plugin in the grading table or on the front page
*
* @return bool
*/
public function has_user_summary() {
return false;
}
/**
* Return the plugin configs for external functions.
*
* @return array the list of settings
* @since Moodle 3.2
*/
public function get_config_for_external() {
return (array) $this->get_config();
}
}