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275 lines
8.7 KiB
275 lines
8.7 KiB
<?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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* Class represents a single rule.
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*
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* @package tool_monitor
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* @copyright 2014 onwards Ankit Agarwal <ankit.agrr@gmail.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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namespace tool_monitor;
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defined('MOODLE_INTERNAL') || die();
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/**
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* Class represents a single rule.
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*
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* @since Moodle 2.8
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* @package tool_monitor
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* @copyright 2014 onwards Ankit Agarwal <ankit.agrr@gmail.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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class rule {
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/**
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* @var \stdClass The rule object form database.
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*/
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protected $rule;
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/**
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* Constructor.
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*
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* @param \stdClass $rule A rule object from database.
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*/
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public function __construct($rule) {
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$this->rule = $rule;
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}
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/**
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* Can the user manage this rule? Defaults to $USER.
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*
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* @param int $userid Check against this userid.
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* @return bool true if the current user can manage this rule, else false.
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*/
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public function can_manage_rule($userid = null) {
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$courseid = $this->courseid;
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$context = empty($courseid) ? \context_system::instance() : \context_course::instance($this->courseid);
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return has_capability('tool/monitor:managerules', $context, $userid);
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}
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/**
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* Api to duplicate a rule in a given courseid.
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*
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* @param int $finalcourseid Final course id.
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*/
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public function duplicate_rule($finalcourseid) {
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$rule = fullclone($this->rule);
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unset($rule->id);
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$rule->courseid = $finalcourseid;
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$time = time();
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$rule->timecreated = $time;
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$rule->timemodified = $time;
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rule_manager::add_rule($rule);
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}
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/**
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* Delete this rule.
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*
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* Note: It also removes all associated subscriptions.
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*/
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public function delete_rule() {
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rule_manager::delete_rule($this->id);
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}
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/**
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* Gets the rule subscribe options for a given course and rule.
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*
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* Could be a select drop down with a list of possible module
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* instances or a single link to subscribe if the rule plugin
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* is not a module.
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*
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* @param int $courseid course id
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*
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* @return \single_select|\moodle_url|string
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* @throws \coding_exception
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*/
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public function get_subscribe_options($courseid) {
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global $CFG;
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$url = new \moodle_url($CFG->wwwroot. '/admin/tool/monitor/index.php', array(
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'courseid' => $courseid,
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'ruleid' => $this->id,
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'action' => 'subscribe',
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'sesskey' => sesskey()
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));
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if (strpos($this->plugin, 'mod_') !== 0) {
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return $url;
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} else {
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// Single select when the plugin is an activity.
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$options = array();
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$options[0] = get_string('allmodules', 'tool_monitor');
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if ($courseid == 0) {
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// They need to be in a course to select module instance.
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return get_string('selectcourse', 'tool_monitor');
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}
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// Let them select an instance.
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$cms = get_fast_modinfo($courseid);
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$instances = $cms->get_instances_of(str_replace('mod_', '', $this->plugin));
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foreach ($instances as $cminfo) {
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// Don't list instances that are not visible or available to the user.
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if ($cminfo->uservisible && $cminfo->available) {
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$options[$cminfo->id] = $cminfo->get_formatted_name();
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}
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}
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return new \single_select($url, 'cmid', $options);
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}
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}
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/**
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* Subscribe an user to this rule.
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*
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* @param int $courseid Course id.
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* @param int $cmid Course module id.
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* @param int $userid User id.
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*
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* @throws \coding_exception
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*/
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public function subscribe_user($courseid, $cmid, $userid = 0) {
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global $USER;
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if ($this->courseid != $courseid && $this->courseid != 0) {
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// Trying to subscribe to a rule that belongs to a different course. Should never happen.
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throw new \coding_exception('Can not subscribe to rules from a different course');
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}
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if ($cmid !== 0) {
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$cms = get_fast_modinfo($courseid);
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$cminfo = $cms->get_cm($cmid);
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if (!$cminfo->uservisible || !$cminfo->available) {
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// Trying to subscribe to a hidden or restricted cm. Should never happen.
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throw new \coding_exception('You cannot do that');
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}
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}
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$userid = empty($userid) ? $USER->id : $userid;
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subscription_manager::create_subscription($this->id, $courseid, $cmid, $userid);
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}
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/**
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* Magic get method.
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*
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* @param string $prop property to get.
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*
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* @return mixed
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* @throws \coding_exception
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*/
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public function __get($prop) {
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if (property_exists($this->rule, $prop)) {
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return $this->rule->$prop;
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}
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throw new \coding_exception('Property "' . $prop . '" doesn\'t exist');
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}
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/**
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* Return the rule data to be used while setting mform.
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*
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* @throws \coding_exception
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*/
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public function get_mform_set_data() {
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if (!empty($this->rule)) {
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$rule = fullclone($this->rule);
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$rule->description = array('text' => $rule->description, 'format' => $rule->descriptionformat);
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$rule->template = array('text' => $rule->template, 'format' => $rule->templateformat);
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return $rule;
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}
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throw new \coding_exception('Invalid call to get_mform_set_data.');
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}
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/**
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* Method to get event name.
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*
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* @return string
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* @throws \coding_exception
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*/
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public function get_event_name() {
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$eventclass = $this->eventname;
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if (class_exists($eventclass)) {
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return $eventclass::get_name_with_info();
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}
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return get_string('eventnotfound', 'tool_monitor');
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}
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/**
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* Get filter description.
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*
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* @return string
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*/
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public function get_filters_description() {
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$a = new \stdClass();
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$a->freq = $this->frequency;
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$mins = $this->timewindow / MINSECS; // Convert seconds to minutes.
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$a->mins = $mins;
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return get_string('freqdesc', 'tool_monitor', $a);
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}
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/**
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* Get properly formatted name of the course associated.
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*
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* @param \context $context context where this name would be displayed.
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* @return string The course fullname.
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*/
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public function get_course_name($context) {
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$courseid = $this->courseid;
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if (empty($courseid)) {
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return get_string('site');
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} else {
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$course = get_course($courseid);
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return format_string($course->fullname, true, array('context' => $context));
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}
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}
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/**
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* Get properly formatted name of the rule associated.
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*
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* @param \context $context context where this name would be displayed.
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* @return string Formatted name of the rule.
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*/
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public function get_name(\context $context) {
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return format_text($this->name, FORMAT_HTML, array('context' => $context));
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}
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/**
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* Get properly formatted description of the rule associated.
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*
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* @param \context $context context where this description would be displayed.
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* @return string Formatted description of the rule.
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*/
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public function get_description(\context $context) {
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return format_text($this->description, $this->descriptionformat, array('context' => $context));
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}
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/**
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* Get name of the plugin associated with this rule
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*
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* @return string Plugin name.
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*/
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public function get_plugin_name() {
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if ($this->plugin === 'core') {
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$string = get_string('core', 'tool_monitor');
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} else if (get_string_manager()->string_exists('pluginname', $this->plugin)) {
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$string = get_string('pluginname', $this->plugin);
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} else {
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$string = $this->plugin;
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}
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return $string;
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}
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}
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