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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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use mod_quiz\local\access_rule_base;
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use mod_quiz\quiz_settings;
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/**
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* A rule enforcing open and close dates.
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*
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* @package quizaccess_openclosedate
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* @copyright 2009 Tim Hunt
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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 quizaccess_openclosedate extends access_rule_base {
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public static function make(quiz_settings $quizobj, $timenow, $canignoretimelimits) {
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// This rule is always used, even if the quiz has no open or close date.
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return new self($quizobj, $timenow);
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}
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public function prevent_access() {
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$message = get_string('notavailable', 'quizaccess_openclosedate');
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if ($this->timenow < $this->quiz->timeopen) {
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return $message;
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}
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if (!$this->quiz->timeclose) {
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return false;
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}
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if ($this->timenow <= $this->quiz->timeclose) {
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return false;
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}
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if ($this->quiz->overduehandling != 'graceperiod') {
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return $message;
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}
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if ($this->timenow <= $this->quiz->timeclose + $this->quiz->graceperiod) {
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return false;
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}
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return $message;
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}
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public function is_finished($numprevattempts, $lastattempt) {
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return $this->quiz->timeclose && $this->timenow > $this->quiz->timeclose;
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}
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public function end_time($attempt) {
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if ($this->quiz->timeclose) {
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return $this->quiz->timeclose;
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}
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return false;
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}
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public function time_left_display($attempt, $timenow) {
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// If this is a teacher preview after the close date, do not show
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// the time.
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if ($attempt->preview && $timenow > $this->quiz->timeclose) {
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return false;
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}
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// Otherwise, return to the time left until the close date, providing that is
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// less than QUIZ_SHOW_TIME_BEFORE_DEADLINE.
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$endtime = $this->end_time($attempt);
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if ($endtime !== false && $timenow > $endtime - QUIZ_SHOW_TIME_BEFORE_DEADLINE) {
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return $endtime - $timenow;
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}
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return false;
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}
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}
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