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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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namespace qbank_previewquestion;
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use core_question\local\bank\question_action_base;
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/**
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* Question bank columns for the preview action icon.
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*
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* @package qbank_previewquestion
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* @copyright 2009 Tim Hunt
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* @author 2021 Safat Shahin <safatshahin@catalyst-au.net>
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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 preview_action extends question_action_base {
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/**
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* @var string store this lang string for performance.
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*/
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protected $strpreview;
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public function init(): void {
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parent::init();
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$this->strpreview = get_string('preview');
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}
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public function get_menu_position(): int {
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return 100;
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}
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protected function get_url_icon_and_label(\stdClass $question): array {
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if (!\question_bank::is_qtype_installed($question->qtype)) {
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// It sometimes happens that people end up with junk questions
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// in their question bank of a type that is no longer installed.
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// We cannot do most actions on them, because that leads to errors.
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return [null, null, null];
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}
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if (question_has_capability_on($question, 'use')) {
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$context = $this->qbank->get_most_specific_context();
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// Default previews to always use the latest question version, unless we are previewing specific versions from the
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// question history.
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if ($this->qbank->is_listing_specific_versions()) {
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$requestedversion = $question->version;
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} else {
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$requestedversion = question_preview_options::ALWAYS_LATEST;
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}
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$url = helper::question_preview_url($question->id, null, null,
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null, null, $context, $this->qbank->returnurl, $requestedversion);
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return [$url, 't/preview', $this->strpreview];
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} else {
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return [null, null, null];
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}
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}
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}
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