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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_statistics\columns;
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use core_question\local\bank\column_base;
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use qbank_statistics\helper;
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/**
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 * This column show the average facility index for this question.
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 *
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 * @package    qbank_statistics
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 * @copyright  2021 Catalyst IT Australia Pty Ltd
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 * @author     Nathan Nguyen <nathannguyen@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 facility_index extends column_base {
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    public function get_title(): string {
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        return get_string('facility_index', 'qbank_statistics');
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    }
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    public function help_icon(): ?\help_icon {
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        return new \help_icon('facility_index', 'qbank_statistics');
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    }
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    public function get_name(): string {
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        return 'facility_index';
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    }
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    public function get_required_statistics_fields(): array {
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        return ['facility'];
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    }
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    protected function display_content($question, $rowclasses) {
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        global $PAGE;
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        $facility = $this->qbank->get_aggregate_statistic($question->id, 'facility');
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        echo $PAGE->get_renderer('qbank_statistics')->render_facility_index($facility);
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    }
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    public function display_preview(\stdClass $question, string $rowclasses): void {
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        global $PAGE;
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        $this->display_start($question, $rowclasses);
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        echo $PAGE->get_renderer('qbank_statistics')->render_facility_index(0.75);
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        $this->display_end($question, $rowclasses);;
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    }
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    public function get_extra_classes(): array {
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        return ['pr-3'];
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    }
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}