mirror of
https://github.com/moodle/moodle.git
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228 lines
9.3 KiB
PHP
228 lines
9.3 KiB
PHP
<?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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* Provides the interface for viewing and adding high scores
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*
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* @package mod
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* @subpackage lesson
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* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
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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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/** include required files */
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require_once('../../config.php');
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require_once($CFG->dirroot.'/mod/lesson/locallib.php');
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$id = required_param('id', PARAM_INT); // Course Module ID
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$mode = optional_param('mode', '', PARAM_ALPHA);
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$link = optional_param('link', 0, PARAM_INT);
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$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
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$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
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$lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
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require_login($course, false, $cm);
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$url = new moodle_url('/mod/lesson/highscores.php', array('id'=>$id));
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if ($mode !== '') {
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$url->param('mode', $mode);
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}
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if ($link !== 0) {
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$url->param('link', $link);
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}
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$PAGE->set_url($url);
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$context = context_module::instance($cm->id);
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switch ($mode) {
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case 'add':
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// Ensure that we came from view.php
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if (!confirm_sesskey() or !data_submitted()) {
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print_error('invalidformdata');
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}
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break;
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case 'save':
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if (confirm_sesskey() and $form = data_submitted($CFG->wwwroot.'/mod/lesson/view.php')) {
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$name = trim(optional_param('name', '', PARAM_CLEAN));
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// Make sure it is not empty
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if (empty($name)) {
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$lesson->add_message(get_string('missingname', 'lesson'));
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$mode = 'add';
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break;
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}
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// Check for censored words
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$filterwords = explode(',', get_string('censorbadwords'));
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foreach ($filterwords as $filterword) {
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if (strstr($name, $filterword)) {
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$lesson->add_message(get_string('namereject', 'lesson'));
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$mode = 'add';
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break;
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}
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}
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// Bad word was found
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if ($mode == 'add') {
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break;
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}
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$params = array ("lessonid" => $lesson->id, "userid" => $USER->id);
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if (!$grades = $DB->get_records_select('lesson_grades', "lessonid = :lessonid", $params, 'completed')) {
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print_error('cannotfindfirstgrade', 'lesson');
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}
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if (!$newgrade = $DB->get_record_sql("SELECT *
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FROM {lesson_grades}
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WHERE lessonid = :lessonid
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AND userid = :userid
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ORDER BY completed DESC", $params, true)) {
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print_error('cannotfindnewestgrade', 'lesson');
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}
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// Check for multiple submissions
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if ($DB->record_exists('lesson_high_scores', array('gradeid' => $newgrade->id))) {
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print_error('onpostperpage', 'lesson');
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}
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// Find out if we need to delete any records
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if ($highscores = $DB->get_records_sql("SELECT h.*, g.grade
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FROM {lesson_grades} g, {lesson_high_scores} h
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WHERE h.gradeid = g.id
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AND h.lessonid = :lessonid
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ORDER BY g.grade DESC", $params)) {
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// Only count unique scores in our total for max high scores
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$uniquescores = array();
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foreach ($highscores as $highscore) {
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$uniquescores[$highscore->grade] = 1;
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}
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if (count($uniquescores) >= $lesson->maxhighscores) {
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// Top scores list is full, might need to delete a score
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$flag = true;
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// See if the new score is already listed in the top scores list
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// if it is listed, then dont need to delete any records
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foreach ($highscores as $highscore) {
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if ($newgrade->grade == $highscore->grade) {
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$flag = false;
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}
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}
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if ($flag) {
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// Pushing out the lowest score (could be multiple records)
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$lowscore = 0;
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foreach ($highscores as $highscore) {
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if (empty($lowscore) or $lowscore > $highscore->grade) {
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$lowscore = $highscore->grade;
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}
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}
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// Now, delete all high scores with the low score
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foreach ($highscores as $highscore) {
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if ($highscore->grade == $lowscore) {
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$DB->delete_records('lesson_high_scores', array('id' => $highscore->id));
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}
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}
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}
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}
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}
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$newhighscore = new stdClass;
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$newhighscore->lessonid = $lesson->id;
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$newhighscore->userid = $USER->id;
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$newhighscore->gradeid = $newgrade->id;
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$newhighscore->nickname = $name;
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$DB->insert_record('lesson_high_scores', $newhighscore);
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// Log it
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add_to_log($course->id, 'lesson', 'update highscores', "highscores.php?id=$cm->id", $name, $cm->id);
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$lesson->add_message(get_string('postsuccess', 'lesson'), 'notifysuccess');
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redirect("$CFG->wwwroot/mod/lesson/highscores.php?id=$cm->id&link=1");
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} else {
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print_error('invalidformdata');
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}
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break;
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}
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// Log it
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add_to_log($course->id, 'lesson', 'view highscores', "highscores.php?id=$cm->id", $lesson->name, $cm->id);
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$lessonoutput = $PAGE->get_renderer('mod_lesson');
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echo $lessonoutput->header($lesson, $cm, 'highscores', false, null, get_string('viewhighscores', 'lesson'));
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switch ($mode) {
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case 'add':
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echo $lessonoutput->add_highscores_form($lesson);
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break;
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default:
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$params = array ("lessonid" => $lesson->id);
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if (!$grades = $DB->get_records_select("lesson_grades", "lessonid = :lessonid", $params, "completed")) {
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$grades = array();
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}
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echo $OUTPUT->heading(get_string("topscorestitle", "lesson", $lesson->maxhighscores), 4);
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if (!$highscores = $DB->get_records_select("lesson_high_scores", "lessonid = :lessonid", $params)) {
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echo $OUTPUT->heading(get_string("nohighscores", "lesson"), 3);
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} else {
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foreach ($highscores as $highscore) {
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$grade = $grades[$highscore->gradeid]->grade;
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$topscores[$grade][] = $highscore->nickname;
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}
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krsort($topscores);
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$table = new html_table();
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$table->align = array('center', 'left', 'right');
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$table->wrap = array();
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$table->width = "30%";
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$table->cellspacing = '10px';
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$table->size = array('*', '*', '*');
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$table->head = array(get_string("rank", "lesson"), get_string('name'), get_string("scores", "lesson"));
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$printed = 0;
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while (true) {
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$temp = current($topscores);
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$score = key($topscores);
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$rank = $printed + 1;
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sort($temp);
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foreach ($temp as $student) {
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$table->data[] = array($rank, $student, $score.'%');
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}
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$printed++;
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if (!next($topscores) || !($printed < $lesson->maxhighscores)) {
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break;
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}
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}
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echo html_writer::table($table);
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}
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if (!has_capability('mod/lesson:manage', $context)) { // teachers don't need the links
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echo $OUTPUT->box_start('mdl-align');
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echo $OUTPUT->box_start('lessonbutton standardbutton');
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if ($link) {
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echo html_writer::link(new moodle_url('/course/view.php', array('id'=>$course->id)), get_string("returntocourse", "lesson"));
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} else {
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echo html_writer::link(new moodle_url('/course/view.php', array('id'=>$course->id)), get_string("cancel", "lesson")). ' ';
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echo html_writer::link(new moodle_url('/mod/lesson/view.php', array('id'=>$cm->id, 'viewed'=>'1')), get_string("startlesson", "lesson"));
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}
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echo $OUTPUT->box_end();
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echo $OUTPUT->box_end();
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}
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break;
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}
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echo $lessonoutput->footer();
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