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✏️ Editing: last_responses_table.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/>.

use mod_quiz\local\reports\attempts_report_table;
use mod_quiz\quiz_attempt;

/**
 * This is a table subclass for displaying the quiz responses report.
 *
 * @copyright 2008 Jean-Michel Vedrine
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class quiz_last_responses_table extends attempts_report_table {

/**
     * Constructor
     * @param stdClass $quiz
     * @param context $context
     * @param string $qmsubselect
     * @param quiz_responses_options $options
     * @param \core\dml\sql_join $groupstudentsjoins
     * @param \core\dml\sql_join $studentsjoins
     * @param array $questions
     * @param moodle_url $reporturl
     */
    public function __construct($quiz, $context, $qmsubselect, quiz_responses_options $options,
            \core\dml\sql_join $groupstudentsjoins, \core\dml\sql_join $studentsjoins, $questions, $reporturl) {
        parent::__construct('mod-quiz-report-responses-report', $quiz, $context,
                $qmsubselect, $options, $groupstudentsjoins, $studentsjoins, $questions, $reporturl);
    }

public function build_table() {
        if (!$this->rawdata) {
            return;
        }

$this->strtimeformat = str_replace(',', ' ', get_string('strftimedatetime'));
        parent::build_table();
    }

public function col_sumgrades($attempt) {
        if ($attempt->state != quiz_attempt::FINISHED) {
            return '-';
        }

$grade = quiz_rescale_grade($attempt->sumgrades, $this->quiz);
        if ($this->is_downloading()) {
            return $grade;
        }

$gradehtml = '<a href="review.php?q=' . $this->quiz->id . '&amp;attempt=' .
                $attempt->attempt . '">' . $grade . '</a>';
        return $gradehtml;
    }

public function data_col($slot, $field, $attempt) {
        if ($attempt->usageid == 0) {
            return '-';
        }

$value = $this->field_from_extra_data($attempt, $slot, $field);

if (is_null($value)) {
            $summary = '-';
        } else {
            $summary = trim($value);
        }

if ($this->is_downloading() && $this->is_downloading() != 'html') {
            return $summary;
        }
        $summary = s($summary);

if ($this->is_downloading() || $field != 'responsesummary') {
            return $summary;
        }

return $this->make_review_link($summary, $attempt, $slot);
    }

/**
     * Column text from the extra data loaded in load_extra_data(), before html formatting etc.
     *
     * @param stdClass $attempt
     * @param int $slot
     * @param string $field
     * @return string
     */
    protected function field_from_extra_data($attempt, $slot, $field) {
        if (!isset($this->lateststeps[$attempt->usageid][$slot])) {
            return '-';
        }
        return $this->lateststeps[$attempt->usageid][$slot]->$field;
    }

public function other_cols($colname, $attempt) {
        if (preg_match('/^question(\d+)$/', $colname, $matches)) {
            return $this->data_col($matches[1], 'questionsummary', $attempt);

} else if (preg_match('/^response(\d+)$/', $colname, $matches)) {
            return $this->data_col($matches[1], 'responsesummary', $attempt);

} else if (preg_match('/^right(\d+)$/', $colname, $matches)) {
            return $this->data_col($matches[1], 'rightanswer', $attempt);

} else {
            return parent::other_cols($colname, $attempt);
        }
    }

protected function requires_extra_data() {
        return true;
    }

protected function is_latest_step_column($column) {
        if (preg_match('/^(?:question|response|right)([0-9]+)/', $column, $matches)) {
            return $matches[1];
        }
        return false;
    }

/**
     * Get any fields that might be needed when sorting on date for a particular slot.
     * @param int    $slot  the slot for the column we want.
     * @param string $alias the table alias for latest state information relating to that slot.
     * @return string sql fragment to alias fields.
     */
    protected function get_required_latest_state_fields($slot, $alias) {
        global $DB;
        return $DB->sql_order_by_text("{$alias}.questionsummary") . " AS question{$slot},
                " . $DB->sql_order_by_text("{$alias}.rightanswer") . " AS right{$slot},
                " . $DB->sql_order_by_text("{$alias}.responsesummary") . " AS response{$slot}";
    }
}

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