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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 functions used by the course overview report.
- *
- * @package report_courseoverview
- * @copyright 2016 Simey Lameze <simey@moodle.com>
- * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
- defined('MOODLE_INTERNAL') || die;
- require_once('../../config.php');
- require_once($CFG->dirroot . '/lib/statslib.php');
- /**
- * Gather course overview data and print the chart.
- *
- * @param int $report represents the report type field on the course overview report filter.
- * @param int $time represents the time period field on the course overview report filter.
- * @param int $numcourses represents the number of courses field on the course overview report filter.
- * @return void
- */
- function report_courseoverview_print_chart($report, $time, $numcourses) {
- global $DB, $OUTPUT, $PAGE;
- $param = stats_get_parameters($time, $report, SITEID, STATS_MODE_RANKED);
- if (!empty($param->sql)) {
- $sql = $param->sql;
- } else {
- $sql = "SELECT courseid, $param->fields
- FROM {" . 'stats_' . $param->table . "}
- WHERE timeend >= $param->timeafter
- AND stattype = 'activity'
- AND roleid = 0
- GROUP BY courseid
- $param->extras
- ORDER BY $param->orderby";
- }
- $courses = $DB->get_records_sql($sql, $param->params, 0, $numcourses);
- if (empty($courses)) {
- $PAGE->set_url('/report/courseoverview/index.php');
- print_error('statsnodata', 'error', $PAGE->url->out());
- }
- $data = [];
- $i = 0;
- foreach ($courses as $c) {
- $data['labels'][$i] = $DB->get_field('course', 'shortname', array('id' => $c->courseid));
- // Line3 represents the third column of the report table except for the most active users report.
- // It is a float number and can be participation radio or activity per user.
- if (isset($c->line3)) {
- $data['series'][$i] = round($c->line3, 2);
- } else {
- $data['series'][$i] = $c->{$param->graphline};
- }
- $i++;
- }
- $chart = new \core\chart_bar();
- $series = new \core\chart_series($param->{$param->graphline}, $data['series']);
- $chart->add_series($series);
- $chart->set_labels($data['labels']);
- echo $OUTPUT->render($chart);
- }
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