Current Path : C:/xampp/htdocs/moodle/analytics/classes/local/time_splitting/ |
Current File : C:/xampp/htdocs/moodle/analytics/classes/local/time_splitting/past_periodic.php |
<?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/>. /** * Time splitting method that generates predictions regularly. * * @package core_analytics * @copyright 2019 David Monllao {@link http://www.davidmonllao.com} * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ namespace core_analytics\local\time_splitting; defined('MOODLE_INTERNAL') || die(); /** * Time splitting method that generates predictions periodically. * * @package core_analytics * @copyright 2019 David Monllao {@link http://www.davidmonllao.com} * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ abstract class past_periodic extends periodic implements before_now { /** * Gets the next range with start on the provided time. * * The next range is based on the past period so we substract this * range's periodicity from $time. * * @param \DateTimeImmutable $time * @return array */ protected function get_next_range(\DateTimeImmutable $time) { $end = $time->getTimestamp(); $start = $time->sub($this->periodicity())->getTimestamp(); if ($start < $this->analysable->get_start()) { // We skip the first range generated as its start is prior to the analysable start. return false; } return [ 'start' => $start, 'end' => $end, 'time' => $end ]; } /** * Get the start of the first time range. * * @return int A timestamp. */ protected function get_first_start() { return $this->analysable->get_start(); } /** * Guarantees that the last range dates end right now. * * @param array $ranges * @return array */ protected function update_last_range(array $ranges) { $lastrange = end($ranges); if ($lastrange['time'] > time()) { // We just need to wait in this case. return $lastrange; } $timetoenddiff = time() - $lastrange['time']; $ranges[count($ranges) - 1] = [ 'start' => $lastrange['start'] + $timetoenddiff, 'end' => $lastrange['end'] + $timetoenddiff, 'time' => $lastrange['time'] + $timetoenddiff, ]; return $ranges; } }