Search moodle.org's
Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 4.2.x will end 22 April 2024 (12 months).
  • Bug fixes for security issues in 4.2.x will end 7 October 2024 (18 months).
  • PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.1.x is supported too.
<?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/>.

/**
 * True-false question renderer class.
 *
 * @package    qtype
 * @subpackage truefalse
 * @copyright  2009 The Open University
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */


defined('MOODLE_INTERNAL') || die();


/**
 * Generates the output for true-false questions.
 *
 * @copyright  2009 The Open University
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class qtype_truefalse_renderer extends qtype_renderer {
    public function formulation_and_controls(question_attempt $qa,
            question_display_options $options) {

> /** @var qtype_truefalse_question $question */
$question = $qa->get_question(); $response = $qa->get_last_qt_var('answer', ''); $inputname = $qa->get_qt_field_name('answer'); $trueattributes = array( 'type' => 'radio', 'name' => $inputname, 'value' => 1, 'id' => $inputname . 'true', ); $falseattributes = array( 'type' => 'radio', 'name' => $inputname, 'value' => 0, 'id' => $inputname . 'false', ); if ($options->readonly) { $trueattributes['disabled'] = 'disabled'; $falseattributes['disabled'] = 'disabled'; } // Work out which radio button to select (if any). $truechecked = false; $falsechecked = false; $responsearray = array(); if ($response) { $trueattributes['checked'] = 'checked'; $truechecked = true; $responsearray = array('answer' => 1); } else if ($response !== '') { $falseattributes['checked'] = 'checked'; $falsechecked = true; $responsearray = array('answer' => 1); } // Work out visual feedback for answer correctness. $trueclass = ''; $falseclass = ''; $truefeedbackimg = ''; $falsefeedbackimg = ''; if ($options->correctness) { if ($truechecked) { $trueclass = ' ' . $this->feedback_class((int) $question->rightanswer); $truefeedbackimg = $this->feedback_image((int) $question->rightanswer); } else if ($falsechecked) { $falseclass = ' ' . $this->feedback_class((int) (!$question->rightanswer)); $falsefeedbackimg = $this->feedback_image((int) (!$question->rightanswer)); } } $radiotrue = html_writer::empty_tag('input', $trueattributes) . html_writer::tag('label', get_string('true', 'qtype_truefalse'), array('for' => $trueattributes['id'], 'class' => 'ml-1')); $radiofalse = html_writer::empty_tag('input', $falseattributes) . html_writer::tag('label', get_string('false', 'qtype_truefalse'), array('for' => $falseattributes['id'], 'class' => 'ml-1')); $result = ''; $result .= html_writer::tag('div', $question->format_questiontext($qa), array('class' => 'qtext'));
< $result .= html_writer::start_tag('div', array('class' => 'ablock')); < $result .= html_writer::tag('div', get_string('selectone', 'qtype_truefalse'), < array('class' => 'prompt'));
> $result .= html_writer::start_tag('fieldset', array('class' => 'ablock')); > if (!empty($question->showstandardinstruction)) { > $legendclass = ''; > $questionnumber = $options->add_question_identifier_to_label(get_string('selectone', 'qtype_truefalse'), true, true); > } else { > $legendclass = 'sr-only'; > $questionnumber = $options->add_question_identifier_to_label(get_string('answer'), true, true); > } > $result .= html_writer::tag('legend', $questionnumber, > array('class' => 'prompt h6 font-weight-normal ' . $legendclass));
$result .= html_writer::start_tag('div', array('class' => 'answer')); $result .= html_writer::tag('div', $radiotrue . ' ' . $truefeedbackimg, array('class' => 'r0' . $trueclass)); $result .= html_writer::tag('div', $radiofalse . ' ' . $falsefeedbackimg, array('class' => 'r1' . $falseclass)); $result .= html_writer::end_tag('div'); // Answer.
< $result .= html_writer::end_tag('div'); // Ablock.
> $result .= html_writer::end_tag('fieldset'); // Ablock.
if ($qa->get_state() == question_state::$invalid) { $result .= html_writer::nonempty_tag('div', $question->get_validation_error($responsearray), array('class' => 'validationerror')); } return $result; } public function specific_feedback(question_attempt $qa) { $question = $qa->get_question(); $response = $qa->get_last_qt_var('answer', ''); if ($response) { return $question->format_text($question->truefeedback, $question->truefeedbackformat, $qa, 'question', 'answerfeedback', $question->trueanswerid); } else if ($response !== '') { return $question->format_text($question->falsefeedback, $question->falsefeedbackformat, $qa, 'question', 'answerfeedback', $question->falseanswerid); } } public function correct_response(question_attempt $qa) { $question = $qa->get_question(); if ($question->rightanswer) { return get_string('correctanswertrue', 'qtype_truefalse'); } else { return get_string('correctanswerfalse', 'qtype_truefalse'); } } }