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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/>.
/**
* Log report renderer.
*
* @package report_log
* @copyright 2014 Rajesh Taneja <rajesh.taneja@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die;
use core\log\manager;
/**
* Report log renderable class.
*
* @package report_log
* @copyright 2014 Rajesh Taneja <rajesh.taneja@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class report_log_renderable implements renderable {
/** @var manager log manager */
protected $logmanager;
/** @var string selected log reader pluginname */
public $selectedlogreader = null;
/** @var int page number */
public $page;
/** @var int perpage records to show */
public $perpage;
/** @var stdClass course record */
public $course;
/** @var moodle_url url of report page */
public $url;
/** @var int selected date from which records should be displayed */
public $date;
/** @var int selected user id for which logs are displayed */
public $userid;
/** @var int selected moduleid */
public $modid;
/** @var string selected action filter */
public $action;
/** @var int educational level */
public $edulevel;
/** @var bool show courses */
public $showcourses;
/** @var bool show users */
public $showusers;
/** @var bool show report */
public $showreport;
/** @var bool show selector form */
public $showselectorform;
/** @var string selected log format */
public $logformat;
/** @var string order to sort */
public $order;
/** @var string origin to filter event origin */
public $origin;
/** @var int group id */
public $groupid;
/** @var table_log table log which will be used for rendering logs */
public $tablelog;
/**
* Constructor.
*
* @param string $logreader (optional)reader pluginname from which logs will be fetched.
* @param stdClass|int $course (optional) course record or id
* @param int $userid (optional) id of user to filter records for.
* @param int|string $modid (optional) module id or site_errors for filtering errors.
* @param string $action (optional) action name to filter.
* @param int $groupid (optional) groupid of user.
* @param int $edulevel (optional) educational level.
* @param bool $showcourses (optional) show courses.
* @param bool $showusers (optional) show users.
* @param bool $showreport (optional) show report.
* @param bool $showselectorform (optional) show selector form.
* @param moodle_url|string $url (optional) page url.
* @param int $date date (optional) timestamp of start of the day for which logs will be displayed.
* @param string $logformat log format.
* @param int $page (optional) page number.
* @param int $perpage (optional) number of records to show per page.
* @param string $order (optional) sortorder of fetched records
*/
public function __construct($logreader = "", $course = 0, $userid = 0, $modid = 0, $action = "", $groupid = 0, $edulevel = -1,
$showcourses = false, $showusers = false, $showreport = true, $showselectorform = true, $url = "", $date = 0,
$logformat='showashtml', $page = 0, $perpage = 100, $order = "timecreated ASC", $origin ='') {
global $PAGE;
// Use first reader as selected reader, if not passed.
if (empty($logreader)) {
$readers = $this->get_readers();
if (!empty($readers)) {
reset($readers);
$logreader = key($readers);
} else {
$logreader = null;
}
}
// Use page url if empty.
if (empty($url)) {
$url = new moodle_url($PAGE->url);
} else {
$url = new moodle_url($url);
}
$this->selectedlogreader = $logreader;
$url->param('logreader', $logreader);
// Use site course id, if course is empty.
if (!empty($course) && is_int($course)) {
$course = get_course($course);
}
$this->course = $course;
$this->userid = $userid;
$this->date = $date;
$this->page = $page;
$this->perpage = $perpage;
$this->url = $url;
$this->order = $order;
$this->modid = $modid;
$this->action = $action;
$this->groupid = $groupid;
$this->edulevel = $edulevel;
$this->showcourses = $showcourses;
$this->showusers = $showusers;
$this->showreport = $showreport;
$this->showselectorform = $showselectorform;
$this->logformat = $logformat;
$this->origin = $origin;
}
/**
* Get a list of enabled sql_reader objects/name
*
* @param bool $nameonly if true only reader names will be returned.
* @return array core\log\sql_reader object or name.
*/
public function get_readers($nameonly = false) {
if (!isset($this->logmanager)) {
$this->logmanager = get_log_manager();
}
$readers = $this->logmanager->get_readers('core\log\sql_reader');
if ($nameonly) {
foreach ($readers as $pluginname => $reader) {
$readers[$pluginname] = $reader->get_name();
}
}
return $readers;
}
/**
* Helper function to return list of activities to show in selection filter.
*
* @return array list of activities.
*/
public function get_activities_list() {
$activities = array();
// For site just return site errors option.
$sitecontext = context_system::instance();
if ($this->course->id == SITEID && has_capability('report/log:view', $sitecontext)) {
$activities["site_errors"] = get_string("siteerrors");
return $activities;
}
$modinfo = get_fast_modinfo($this->course);
if (!empty($modinfo->cms)) {
$section = 0;
$thissection = array();
foreach ($modinfo->cms as $cm) {
if (!$cm->uservisible || !$cm->has_view()) {
continue;
}
if ($cm->sectionnum > 0 and $section <> $cm->sectionnum) {
$activities[] = $thissection;
$thissection = array();
}
$section = $cm->sectionnum;
$modname = strip_tags($cm->get_formatted_name());
if (core_text::strlen($modname) > 55) {
$modname = core_text::substr($modname, 0, 50)."...";
}
if (!$cm->visible) {
$modname = "(".$modname.")";
}
$key = get_section_name($this->course, $cm->sectionnum);
if (!isset($thissection[$key])) {
$thissection[$key] = array();
}
$thissection[$key][$cm->id] = $modname;
}
if (!empty($thissection)) {
$activities[] = $thissection;
}
}
return $activities;
}
/**
* Helper function to get selected group.
*
* @return int selected group.
*/
public function get_selected_group() {
global $SESSION, $USER;
// No groups for system.
if (empty($this->course)) {
return 0;
}
$context = context_course::instance($this->course->id);
$selectedgroup = 0;
// Setup for group handling.
$groupmode = groups_get_course_groupmode($this->course);
if ($groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
$selectedgroup = -1;
} else if ($groupmode) {
$selectedgroup = $this->groupid;
} else {
$selectedgroup = 0;
}
if ($selectedgroup === -1) {
if (isset($SESSION->currentgroup[$this->course->id])) {
$selectedgroup = $SESSION->currentgroup[$this->course->id];
} else {
$selectedgroup = groups_get_all_groups($this->course->id, $USER->id);
if (is_array($selectedgroup)) {
$groupids = array_keys($selectedgroup);
$selectedgroup = array_shift($groupids);
$SESSION->currentgroup[$this->course->id] = $selectedgroup;
} else {
$selectedgroup = 0;
}
}
}
return $selectedgroup;
}
/**
* Return list of actions for log reader.
*
* @todo MDL-44528 Get list from log_store.
* @return array list of action options.
*/
public function get_actions() {
$actions = array(
'c' => get_string('create'),
'r' => get_string('view'),
'u' => get_string('update'),
'd' => get_string('delete'),
'cud' => get_string('allchanges')
);
return $actions;
}
/**
* Return selected user fullname.
*
* @return string user fullname.
*/
public function get_selected_user_fullname() {
$user = core_user::get_user($this->userid);
return fullname($user);
}
/**
* Return list of courses to show in selector.
*
* @return array list of courses.
*/
public function get_course_list() {
global $DB, $SITE;
$courses = array();
$sitecontext = context_system::instance();
// First check to see if we can override showcourses and showusers.
$numcourses = $DB->count_records("course");
if ($numcourses < COURSE_MAX_COURSES_PER_DROPDOWN && !$this->showcourses) {
$this->showcourses = 1;
}
// Check if course filter should be shown.
if (has_capability('report/log:view', $sitecontext) && $this->showcourses) {
if ($courserecords = $DB->get_records("course", null, "fullname", "id,shortname,fullname,category")) {
foreach ($courserecords as $course) {
if ($course->id == SITEID) {
$courses[$course->id] = format_string($course->fullname) . ' (' . get_string('site') . ')';
} else {
$courses[$course->id] = format_string(get_course_display_name_for_list($course));
}
}
}
core_collator::asort($courses);
}
return $courses;
}
/**
* Return list of groups.
*
* @return array list of groups.
*/
public function get_group_list() {
// No groups for system.
if (empty($this->course)) {
return array();
}
$context = context_course::instance($this->course->id);
$groups = array();
$groupmode = groups_get_course_groupmode($this->course);
if (($groupmode == VISIBLEGROUPS) ||
($groupmode == SEPARATEGROUPS and has_capability('moodle/site:accessallgroups', $context))) {
// Get all groups.
if ($cgroups = groups_get_all_groups($this->course->id)) {
foreach ($cgroups as $cgroup) {
$groups[$cgroup->id] = $cgroup->name;
}
}
}
return $groups;
}
/**
* Return list of users.
*
* @return array list of users.
*/
public function get_user_list() {
global $CFG, $SITE;
$courseid = $SITE->id;
if (!empty($this->course)) {
$courseid = $this->course->id;
}
$context = context_course::instance($courseid);
$limitfrom = empty($this->showusers) ? 0 : '';
$limitnum = empty($this->showusers) ? COURSE_MAX_USERS_PER_DROPDOWN + 1 : '';
$courseusers = get_enrolled_users($context, '', $this->groupid, 'u.id, ' . get_all_user_name_fields(true, 'u'),
null, $limitfrom, $limitnum);
if (count($courseusers) < COURSE_MAX_USERS_PER_DROPDOWN && !$this->showusers) {
$this->showusers = 1;
}
$users = array();
if ($this->showusers) {
if ($courseusers) {
foreach ($courseusers as $courseuser) {
$users[$courseuser->id] = fullname($courseuser, has_capability('moodle/site:viewfullnames', $context));
}
}
$users[$CFG->siteguest] = get_string('guestuser');
}
return $users;
}
/**
* Return list of date options.
*
* @return array date options.
*/
public function get_date_options() {
global $SITE;
$strftimedate = get_string("strftimedate");
$strftimedaydate = get_string("strftimedaydate");
// Get all the possible dates.
// Note that we are keeping track of real (GMT) time and user time.
// User time is only used in displays - all calcs and passing is GMT.
$timenow = time(); // GMT.
// What day is it now for the user, and when is midnight that day (in GMT).
$timemidnight = usergetmidnight($timenow);
// Put today up the top of the list.
$dates = array("$timemidnight" => get_string("today").", ".userdate($timenow, $strftimedate) );
// If course is empty, get it from frontpage.
$course = $SITE;
if (!empty($this->course)) {
$course = $this->course;
}
if (!$course->startdate or ($course->startdate > $timenow)) {
$course->startdate = $course->timecreated;
}
$numdates = 1;
while ($timemidnight > $course->startdate and $numdates < 365) {
$timemidnight = $timemidnight - 86400;
$timenow = $timenow - 86400;
$dates["$timemidnight"] = userdate($timenow, $strftimedaydate);
$numdates++;
}
return $dates;
}
/**
* Return list of components to show in selector.
*
* @return array list of origins.
*/
public function get_origin_options() {
$ret = array();
$ret[''] = get_string('allsources', 'report_log');
$ret['cli'] = get_string('cli', 'report_log');
$ret['restore'] = get_string('restore', 'report_log');
$ret['web'] = get_string('web', 'report_log');
$ret['ws'] = get_string('ws', 'report_log');
$ret['---'] = get_string('other', 'report_log');
return $ret;
}
/**
* Return list of edulevel.
*
* @todo MDL-44528 Get list from log_store.
* @return array list of edulevels.
*/
public function get_edulevel_options() {
$edulevels = array(
-1 => get_string("edulevel"),
1 => get_string('edulevelteacher'),
2 => get_string('edulevelparticipating'),
0 => get_string('edulevelother')
);
return $edulevels;
}
/**
* Setup table log.
*/
public function setup_table() {
$readers = $this->get_readers();
$filter = new \stdClass();
if (!empty($this->course)) {
$filter->courseid = $this->course->id;
} else {
$filter->courseid = 0;
}
$filter->userid = $this->userid;
$filter->modid = $this->modid;
$filter->groupid = $this->get_selected_group();
$filter->logreader = $readers[$this->selectedlogreader];
$filter->edulevel = $this->edulevel;
$filter->action = $this->action;
$filter->date = $this->date;
$filter->orderby = $this->order;
$filter->origin = $this->origin;
// If showing site_errors.
if ('site_errors' === $this->modid) {
$filter->siteerrors = true;
$filter->modid = 0;
}
$this->tablelog = new report_log_table_log('report_log', $filter);
$this->tablelog->define_baseurl($this->url);
$this->tablelog->is_downloadable(true);
$this->tablelog->show_download_buttons_at(array(TABLE_P_BOTTOM));
}
/**
* Download logs in specified format.
*/
public function download() {
$filename = 'logs_' . userdate(time(), get_string('backupnameformat', 'langconfig'), 99, false);
if ($this->course->id !== SITEID) {
$courseshortname = format_string($this->course->shortname, true,
array('context' => context_course::instance($this->course->id)));
$filename = clean_filename('logs_' . $courseshortname . '_' . userdate(time(),
get_string('backupnameformat', 'langconfig'), 99, false));
}
$this->tablelog->is_downloading($this->logformat, $filename);
$this->tablelog->out($this->perpage, false);
}
}