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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/>.
/**
* Reports implementation
*
* @package report
* @subpackage stats
* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die;
require_once(__DIR__.'/lib.php');
require_once($CFG->dirroot.'/lib/statslib.php');
function report_stats_mode_menu($course, $mode, $time, $url) {
global $CFG, $OUTPUT;
/*
$reportoptions = stats_get_report_options($course->id, $mode);
$timeoptions = report_stats_timeoptions($mode);
if (empty($timeoptions)) {
print_error('nostatstodisplay', '', $CFG->wwwroot.'/course/view.php?id='.$course->id);
}
*/
$options = array();
$options[STATS_MODE_GENERAL] = get_string('statsmodegeneral');
$options[STATS_MODE_DETAILED] = get_string('statsmodedetailed');
if (has_capability('report/stats:view', context_system::instance())) {
$options[STATS_MODE_RANKED] = get_string('reports');
}
$popupurl = $url."?course=$course->id&time=$time";
$select = new single_select(new moodle_url($popupurl), 'mode', $options, $mode, null);
$select->set_label(get_string('reports'), array('class' => 'accesshide'));
$select->formid = 'switchmode';
return $OUTPUT->render($select);
}
function report_stats_timeoptions($mode) {
global $CFG, $DB;
if ($mode == STATS_MODE_DETAILED) {
$earliestday = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_user_daily}');
$earliestweek = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_user_weekly}');
$earliestmonth = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_user_monthly}');
} else {
$earliestday = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_daily}');
$earliestweek = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_weekly}');
$earliestmonth = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_monthly}');
}
if (empty($earliestday)) $earliestday = time();
if (empty($earliestweek)) $earliestweek = time();
if (empty($earliestmonth)) $earliestmonth = time();
$now = stats_get_base_daily();
$lastweekend = stats_get_base_weekly();
$lastmonthend = stats_get_base_monthly();
return stats_get_time_options($now,$lastweekend,$lastmonthend,$earliestday,$earliestweek,$earliestmonth);
}
function report_stats_report($course, $report, $mode, $user, $roleid, $time) {
global $CFG, $DB, $OUTPUT;
if ($user) {
$userid = $user->id;
} else {
$userid = 0;
}
$fields = 'c.id,c.shortname,c.visible';
$ccselect = ', ' . context_helper::get_preload_record_columns_sql('ctx');
$ccjoin = "LEFT JOIN {context} ctx ON (ctx.instanceid = c.id AND ctx.contextlevel = :contextlevel)";
$sortstatement = 'ORDER BY c.shortname';
$sql = "SELECT $fields $ccselect FROM {course} c $ccjoin $sortstatement";
$params = array();
$params['contextlevel'] = CONTEXT_COURSE;
$courses = $DB->get_recordset_sql($sql, $params);
$courseoptions = array();
foreach ($courses as $c) {
context_helper::preload_from_record($c);
$context = context_course::instance($c->id);
if (has_capability('report/stats:view', $context)) {
if (isset($c->visible) && $c->visible <= 0) {
// For hidden courses, require visibility check.
if (!has_capability('moodle/course:viewhiddencourses', $context)) {
continue;
}
}
$courseoptions[$c->id] = format_string($c->shortname, true, array('context' => $context));
}
}
$courses->close();
$reportoptions = stats_get_report_options($course->id, $mode);
$timeoptions = report_stats_timeoptions($mode);
if (empty($timeoptions)) {
print_error('nostatstodisplay', '', $CFG->wwwroot.'/course/view.php?id='.$course->id);
}
$users = array();
$table = new html_table();
$table->width = 'auto';
if ($mode == STATS_MODE_DETAILED) {
$param = stats_get_parameters($time, null, $course->id, $mode, $roleid); // We only care about the table and the time string (if we have time).
list($sort, $moreparams) = users_order_by_sql('u');
$moreparams['courseid'] = $course->id;
$fields = user_picture::fields('u', array('idnumber'));
$sql = "SELECT DISTINCT $fields
FROM {stats_user_{$param->table}} s
JOIN {user} u ON u.id = s.userid
WHERE courseid = :courseid";
if (!empty($param->stattype)) {
$sql .= " AND stattype = :stattype";
$moreparams['stattype'] = $param->stattype;
}
if (!empty($time)) {
$sql .= " AND timeend >= :timeafter";
$moreparams['timeafter'] = $param->timeafter;
}
$sql .= " ORDER BY {$sort}";
if (!$us = $DB->get_records_sql($sql, array_merge($param->params, $moreparams))) {
print_error('nousers');
}
foreach ($us as $u) {
$users[$u->id] = fullname($u, true);
}
$table->align = array('left','left','left','left','left','left','left','left');
$table->data[] = array(html_writer::label(get_string('course'), 'menucourse'), html_writer::select($courseoptions, 'course', $course->id, false),
html_writer::label(get_string('users'), 'menuuserid'), html_writer::select($users, 'userid', $userid, false),
html_writer::label(get_string('statsreporttype'), 'menureport'), html_writer::select($reportoptions, 'report', ($report == 5) ? $report.$roleid : $report, false),
html_writer::label(get_string('statstimeperiod'), 'menutime'), html_writer::select($timeoptions, 'time', $time, false),
'<input type="submit" class="btn btn-secondary" value="'.get_string('view').'" />');
} else if ($mode == STATS_MODE_RANKED) {
$table->align = array('left','left','left','left','left','left');
$table->data[] = array(html_writer::label(get_string('statsreporttype'), 'menureport'), html_writer::select($reportoptions, 'report', ($report == 5) ? $report.$roleid : $report, false),
html_writer::label(get_string('statstimeperiod'), 'menutime'), html_writer::select($timeoptions, 'time', $time, false),
'<input type="submit" class="btn btn-secondary" value="'.get_string('view').'" />');
} else if ($mode == STATS_MODE_GENERAL) {
$table->align = array('left','left','left','left','left','left','left');
$table->data[] = array(html_writer::label(get_string('course'), 'menucourse'), html_writer::select($courseoptions, 'course', $course->id, false),
html_writer::label(get_string('statsreporttype'), 'menureport'), html_writer::select($reportoptions, 'report', ($report == 5) ? $report.$roleid : $report, false),
html_writer::label(get_string('statstimeperiod'), 'menutime'), html_writer::select($timeoptions, 'time', $time, false),
'<input type="submit" class="btn btn-secondary" value="'.get_string('view').'" />');
}
echo '<form action="index.php" method="post">'."\n"
.'<div>'."\n"
.'<input type="hidden" name="mode" value="'.$mode.'" />'."\n";
echo html_writer::table($table);
echo '</div>';
echo '</form>';
// Display the report if:
// - A report has been selected.
// - A time frame has been provided
// - If the mode is not detailed OR a valid user has been selected.
if (!empty($report) && !empty($time) && ($mode !== STATS_MODE_DETAILED || !empty($userid))) {
if ($report == STATS_REPORT_LOGINS && $course->id != SITEID) {
print_error('reportnotavailable');
}
$param = stats_get_parameters($time, $report, $course->id, $mode, $roleid);
if ($mode == STATS_MODE_DETAILED) {
$param->table = 'user_'.$param->table;
}
if (!empty($param->sql)) {
$sql = $param->sql;
} else {
//TODO: lceanup this ugly mess
$sql = 'SELECT '.((empty($param->fieldscomplete)) ? 'id,roleid,timeend,' : '').$param->fields
.' FROM {stats_'.$param->table.'} WHERE '
.(($course->id == SITEID) ? '' : ' courseid = '.$course->id.' AND ')
.((!empty($userid)) ? ' userid = '.$userid.' AND ' : '')
.((!empty($roleid)) ? ' roleid = '.$roleid.' AND ' : '')
. ((!empty($param->stattype)) ? ' stattype = \''.$param->stattype.'\' AND ' : '')
.' timeend >= '.$param->timeafter
.' '.$param->extras
.' ORDER BY timeend DESC';
}
$stats = $DB->get_records_sql($sql);
if (empty($stats)) {
echo $OUTPUT->notification(get_string('statsnodata'));
} else {
$stats = stats_fix_zeros($stats,$param->timeafter,$param->table,(!empty($param->line2)));
$rolename = '';
$userdisplayname = '';
$coursecontext = context_course::instance($course->id);
if (!empty($roleid) && $role = $DB->get_record('role', ['id' => $roleid])) {
$rolename = ' ' . role_get_name($role, $coursecontext);
}
if (!empty($user)) {
$userdisplayname = ' ' . fullname($user, true);
}
echo $OUTPUT->heading(
format_string($course->shortname) .
' - ' .
get_string('statsreport' . $report) .
$rolename .
$userdisplayname
);
if ($mode == STATS_MODE_DETAILED) {
report_stats_print_chart($course->id, $report, $time, $mode, $userid);
} else {
report_stats_print_chart($course->id, $report, $time, $mode, null, $roleid);
}
$table = new html_table();
$table->align = array('left','center','center','center');
$param->table = str_replace('user_','',$param->table);
switch ($param->table) {
case 'daily' : $period = get_string('day'); break;
case 'weekly' : $period = get_string('week'); break;
case 'monthly': $period = get_string('month', 'form'); break;
default : $period = '';
}
$table->head = array(get_string('periodending','moodle',$period));
if (empty($param->crosstab)) {
$table->head[] = $param->line1;
if (!empty($param->line2)) {
$table->head[] = $param->line2;
}
}
if (!file_exists($CFG->dirroot.'/report/log/index.php')) {
// bad luck, we can not link other report
} else if (empty($param->crosstab)) {
foreach ($stats as $stat) {
$a = array(userdate($stat->timeend - DAYSECS, get_string('strftimedate'), $CFG->timezone),
$stat->line1);
if (isset($stat->line2)) {
$a[] = $stat->line2;
}
if (empty($CFG->loglifetime) || ($stat->timeend-(60*60*24)) >= (time()-60*60*24*$CFG->loglifetime)) {
if (has_capability('report/log:view', context_course::instance($course->id))) {
$a[] = '<a href="'.$CFG->wwwroot.'/report/log/index.php?id='.
$course->id.'&chooselog=1&showusers=1&showcourses=1&user='
.$userid.'&date='.usergetmidnight($stat->timeend-(60*60*24)).'">'
.get_string('course').' ' .get_string('logs').'</a> ';
} else {
$a[] = '';
}
}
$table->data[] = $a;
}
} else {
$data = array();
$roles = array();
$times = array();
$missedlines = array();
$coursecontext = context_course::instance($course->id);
$rolenames = get_viewable_roles($coursecontext);
foreach ($stats as $stat) {
if (!empty($stat->zerofixed)) {
$missedlines[] = $stat->timeend;
}
$data[$stat->timeend][$stat->roleid] = $stat->line1;
if ($stat->roleid != 0) {
if (!array_key_exists($stat->roleid, $roles) && array_key_exists($stat->roleid, $rolenames)) {
$roles[$stat->roleid] = $rolenames[$stat->roleid];
}
} else {
if (!array_key_exists($stat->roleid,$roles)) {
$roles[$stat->roleid] = get_string('all');
}
}
if (!array_key_exists($stat->timeend,$times)) {
$times[$stat->timeend] = userdate($stat->timeend - DAYSECS, get_string('strftimedate'),
$CFG->timezone);
}
}
foreach ($data as $time => $rolesdata) {
if (in_array($time,$missedlines)) {
$rolesdata = array();
foreach ($roles as $roleid => $guff) {
$rolesdata[$roleid] = 0;
}
}
else {
foreach (array_keys($roles) as $r) {
if (!array_key_exists($r, $rolesdata)) {
$rolesdata[$r] = 0;
}
}
}
krsort($rolesdata);
$row = array_merge(array($times[$time]),$rolesdata);
if (empty($CFG->loglifetime) || ($stat->timeend-(60*60*24)) >= (time()-60*60*24*$CFG->loglifetime)) {
if (has_capability('report/log:view', context_course::instance($course->id))) {
$row[] = '<a href="'.$CFG->wwwroot.'/report/log/index.php?id='
.$course->id.'&chooselog=1&showusers=1&showcourses=1&user='.$userid
.'&date='.usergetmidnight($time-(60*60*24)).'">'
.get_string('course').' ' .get_string('logs').'</a> ';
} else {
$row[] = '';
}
}
$table->data[] = $row;
}
krsort($roles);
$table->head = array_merge($table->head,$roles);
}
$table->head[] = get_string('logs');
//if (!empty($lastrecord)) {
//$lastrecord[] = $lastlink;
//$table->data[] = $lastrecord;
//}
echo html_writer::table($table);
}
}
}
/**
* Fetch statistics data and generate a line chart.
*
* The statistic chart can be view, posts separated by roles and dates.
*
* @param int $courseid course id.
* @param int $report the report type constant eg. STATS_REPORT_LOGINS as defined on statslib.
* @param int $time timestamp of the selected time period.
* @param int $mode the report mode, eg. STATS_MODE_DETAILED as defined on statslib.
* @param int $userid selected user id.
* @param int $roleid selected role id.
*/
function report_stats_print_chart($courseid, $report, $time, $mode, $userid = 0, $roleid = 0) {
global $DB, $CFG, $OUTPUT;
$course = $DB->get_record("course", array("id" => $courseid), '*', MUST_EXIST);
$coursecontext = context_course::instance($course->id);
stats_check_uptodate($course->id);
$param = stats_get_parameters($time, $report, $course->id, $mode, $roleid);
if (!empty($userid)) {
$param->table = 'user_' . $param->table;
}
// TODO: cleanup this ugly mess.
$sql = 'SELECT '.((empty($param->fieldscomplete)) ? 'id,roleid,timeend,' : '').$param->fields
.' FROM {stats_'.$param->table.'} WHERE '
.(($course->id == SITEID) ? '' : ' courseid = '.$course->id.' AND ')
.((!empty($userid)) ? ' userid = '.$userid.' AND ' : '')
.((!empty($roleid)) ? ' roleid = '.$roleid.' AND ' : '')
. ((!empty($param->stattype)) ? ' stattype = \''.$param->stattype.'\' AND ' : '')
.' timeend >= '.$param->timeafter
.' '.$param->extras
.' ORDER BY timeend DESC';
$stats = $DB->get_records_sql($sql, $param->params);
$stats = stats_fix_zeros($stats, $param->timeafter, $param->table, (!empty($param->line2)),
(!empty($param->line3)));
$stats = array_reverse($stats);
$chart = new \core\chart_line();
if (empty($param->crosstab)) {
$data = [];
$times = [];
foreach ($stats as $stat) {
// Build the array of formatted times indexed by timestamp used as labels.
if (!array_key_exists($stat->timeend, $times)) {
$times[$stat->timeend] = userdate($stat->timeend - DAYSECS, get_string('strftimedate'), $CFG->timezone);
// Just add the data if the time hasn't been added yet.
// The number of lines of data must match the number of labels.
$data['line1'][] = $stat->line1;
if (isset($stat->line2)) {
$data['line2'][] = $stat->line2;
}
if (isset($stat->line3)) {
$data['line3'][] = $stat->line3;
}
}
}
foreach ($data as $line => $serie) {
$series = new \core\chart_series($param->{$line}, array_values($serie));
$chart->add_series($series);
}
} else {
$data = array();
$times = array();
$roles = array();
$missedlines = array();
$rolenames = get_viewable_roles($coursecontext);
foreach ($stats as $stat) {
$data[$stat->roleid][$stat->timeend] = $stat->line1;
if (!empty($stat->zerofixed)) {
$missedlines[] = $stat->timeend;
}
if ($stat->roleid != 0) {
if (!array_key_exists($stat->roleid, $roles) && array_key_exists($stat->roleid, $rolenames)) {
$roles[$stat->roleid] = $rolenames[$stat->roleid];
}
} else {
if (!array_key_exists($stat->roleid, $roles)) {
$roles[$stat->roleid] = get_string('all');
}
}
// Build the array of formatted times indexed by timestamp used as labels.
if (!array_key_exists($stat->timeend, $times)) {
$times[$stat->timeend] = userdate($stat->timeend - DAYSECS, get_string('strftimedate'), $CFG->timezone);
}
}
// Fill empty days with zero to avoid chart errors.
foreach (array_keys($times) as $t) {
foreach ($data as $roleid => $stuff) {
if (!array_key_exists($t, $stuff)) {
$data[$roleid][$t] = 0;
}
}
}
krsort($roles);
foreach ($roles as $roleid => $rolename) {
ksort($data[$roleid]);
$series = new \core\chart_series($rolename, array_values($data[$roleid]));
$chart->add_series($series);
}
}
$chart->set_labels(array_values($times));
echo $OUTPUT->render_chart($chart, false);
}