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