Damyon Wiese bbd0e548c3 MDL-31270 mod_assign: introducing the assignment module
* Includes an assignment upgrade tool to convert from the old mod_assignment.
* Hides mod_assignment on new installs
2012-05-03 14:44:06 +08:00

249 lines
8.8 KiB
PHP

<?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 comment feedback plugin
*
*
* @package assignfeedback_comments
* @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();
/**
* library class for comment feedback plugin extending feedback plugin base class
*
* @package assignfeedback_comments
* @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_comments extends assign_feedback_plugin {
/**
* Get the name of the online comment feedback plugin
* @return string
*/
public function get_name() {
return get_string('pluginname', 'assignfeedback_comments');
}
/**
* Get the feedback comment from the database
*
* @param int $gradeid
* @return stdClass|false The feedback comments for the given grade if it exists. False if it doesn't.
*/
public function get_feedback_comments($gradeid) {
global $DB;
return $DB->get_record('assignfeedback_comments', array('grade'=>$gradeid));
}
/**
* Get form elements for the grading page
*
* @param stdClass|null $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 $data) {
if ($grade) {
$feedbackcomments = $this->get_feedback_comments($grade->id);
if ($feedbackcomments) {
$data->feedbackcomments_editor['text'] = $feedbackcomments->commenttext;
$data->feedbackcomments_editor['format'] = $feedbackcomments->commentformat;
}
}
$mform->addElement('editor', 'assignfeedbackcomments_editor', '', null, null);
return true;
}
/**
* Saving the comment content into dtabase
*
* @param stdClass $grade
* @param stdClass $data
* @return bool
*/
public function save(stdClass $grade, stdClass $data) {
global $DB;
$feedbackcomment = $this->get_feedback_comments($grade->id);
if ($feedbackcomment) {
$feedbackcomment->commenttext = $data->assignfeedbackcomments_editor['text'];
$feedbackcomment->commentformat = $data->assignfeedbackcomments_editor['format'];
return $DB->update_record('assignfeedback_comments', $feedbackcomment);
} else {
$feedbackcomment = new stdClass();
$feedbackcomment->commenttext = $data->assignfeedbackcomments_editor['text'];
$feedbackcomment->commentformat = $data->assignfeedbackcomments_editor['format'];
$feedbackcomment->grade = $grade->id;
$feedbackcomment->assignment = $this->assignment->get_instance()->id;
return $DB->insert_record('assignfeedback_comments', $feedbackcomment) > 0;
}
}
/**
* display the comment in the feedback table
*
* @param stdClass $grade
* @param bool $showviewlink Set to true to show a link to view the full feedback
* @return string
*/
public function view_summary(stdClass $grade, $showviewlink) {
$feedbackcomments = $this->get_feedback_comments($grade->id);
if ($feedbackcomments) {
$text = format_text($feedbackcomments->commenttext, $feedbackcomments->commentformat, array('context' => $this->assignment->get_context()));
$short = shorten_text($text, 140);
// show the view all link if the text has been shortened
$showviewlink = $short != $text;
return $short;
}
return '';
}
/**
* display the comment in the feedback table
*
* @param stdClass $grade
* @return string
*/
public function view(stdClass $grade) {
$feedbackcomments = $this->get_feedback_comments($grade->id);
if ($feedbackcomments) {
return format_text($feedbackcomments->commenttext, $feedbackcomments->commentformat, array('context' => $this->assignment->get_context()));
}
return '';
}
/**
* Return true if this plugin can upgrade an old Moodle 2.2 assignment of this type
* and version.
*
* @param string $type old assignment subtype
* @param int $version old assignment version
* @return bool True if upgrade is possible
*/
public function can_upgrade($type, $version) {
if (($type == 'upload' || $type == 'uploadsingle') && $version >= 2011112900) {
return true;
}
return false;
}
/**
* Upgrade the settings from the old assignment to the new plugin based one
*
* @param context $oldcontext - the context for the old assignment
* @param stdClass $oldassignment - the data for the old assignment
* @param string $log - can be appended to by the upgrade
* @return bool was it a success? (false will trigger a rollback)
*/
public function upgrade_settings(context $oldcontext, stdClass $oldassignment, & $log) {
// first upgrade settings (nothing to do)
return true;
}
/**
* Upgrade the feedback from the old assignment to the new one
*
* @param context $oldcontext - the database for the old assignment context
* @param stdClass $oldassignment The data record for the old assignment
* @param stdClass $oldsubmission The data record for the old submission
* @param stdClass $grade The data record for the new grade
* @param string $log Record upgrade messages in the log
* @return bool true or false - false will trigger a rollback
*/
public function upgrade(context $oldcontext, stdClass $oldassignment, stdClass $oldsubmission, stdClass $grade, & $log) {
global $DB;
$feedbackcomments = new stdClass();
$feedbackcomments->commenttext = $oldsubmission->submissioncomment;
$feedbackcomments->commentformat = FORMAT_HTML;
$feedbackcomments->grade = $grade->id;
$feedbackcomments->assignment = $this->assignment->get_instance()->id;
if (!$DB->insert_record('assignfeedback_comments', $feedbackcomments) > 0) {
$log .= get_string('couldnotconvertgrade', 'mod_assign', $grade->userid);
return false;
}
return true;
}
/**
* If this plugin adds to the gradebook comments field, it must specify the format of the text
* of the comment
*
* Only one feedback plugin can push comments to the gradebook and that is chosen by the assignment
* settings page.
*
* @param stdClass $grade The grade
* @return int
*/
public function format_for_gradebook(stdClass $grade) {
$feedbackcomments = $this->get_feedback_comments($grade->id);
if ($feedbackcomments) {
return $feedbackcomments->commentformat;
}
return FORMAT_MOODLE;
}
/**
* If this plugin adds to the gradebook comments field, it must format the text
* of the comment
*
* Only one feedback plugin can push comments to the gradebook and that is chosen by the assignment
* settings page.
*
* @param stdClass $grade The grade
* @return string
*/
public function text_for_gradebook(stdClass $grade) {
$feedbackcomments = $this->get_feedback_comments($grade->id);
if ($feedbackcomments) {
return $feedbackcomments->commenttext;
}
return '';
}
/**
* The assignment has been deleted - cleanup
*
* @return bool
*/
public function delete_instance() {
global $DB;
// will throw exception on failure
$DB->delete_records('assignfeedback_comments', array('assignment'=>$this->assignment->get_instance()->id));
return true;
}
/**
* Returns true if there are no feedback comments for the given grade
*
* @param stdClass $grade
* @return bool
*/
public function is_empty(stdClass $grade) {
return $this->view($grade) == '';
}
}