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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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* Write actions indicator.
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*
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* @package core
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* @copyright 2016 David Monllao {@link http://www.davidmonllao.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 core\analytics\indicator;
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defined('MOODLE_INTERNAL') || die();
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/**
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* Write actions indicator.
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*
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* @package core
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* @copyright 2016 David Monllao {@link http://www.davidmonllao.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 any_write_action extends \core_analytics\local\indicator\binary {
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/**
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* Returns the name.
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*
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* If there is a corresponding '_help' string this will be shown as well.
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*
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* @return \lang_string
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*/
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public static function get_name(): \lang_string {
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return new \lang_string('indicator:anywrite');
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}
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/**
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* required_sample_data
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*
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* @return string[]
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*/
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public static function required_sample_data() {
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// User is not required, calculate_sample can handle its absence.
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return array('context');
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}
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/**
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* calculate_sample
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*
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* @param int $sampleid
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* @param string $sampleorigin
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* @param int $starttime
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* @param int $endtime
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* @return float
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*/
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protected function calculate_sample($sampleid, $sampleorigin, $starttime = false, $endtime = false) {
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global $DB;
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$select = '';
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$params = array();
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if ($user = $this->retrieve('user', $sampleid)) {
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$select .= "userid = :userid AND ";
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$params = $params + array('userid' => $user->id);
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}
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if (!$logstore = \core_analytics\manager::get_analytics_logstore()) {
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throw new \coding_exception('No available log stores');
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}
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// Filter by context to use the logstore_standard_log db table index.
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$context = $this->retrieve('context', $sampleid);
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$select .= "contextlevel = :contextlevel AND contextinstanceid = :contextinstanceid AND " .
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"(crud = 'c' OR crud = 'u')";
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$params = $params + array('contextlevel' => $context->contextlevel,
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'contextinstanceid' => $context->instanceid);
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if ($starttime) {
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$select .= " AND timecreated > :starttime";
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$params['starttime'] = $starttime;
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}
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if ($endtime) {
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$select .= " AND timecreated <= :endtime";
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$params['endtime'] = $endtime;
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}
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$nlogs = $logstore->get_events_select_count($select, $params);
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if ($nlogs) {
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return self::get_max_value();
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} else {
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return self::get_min_value();
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}
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}
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}
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