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// GNU General Public License for more details.
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// GNU General Public License for more details.
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//
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//
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// You should have received a copy of the GNU General Public License
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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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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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/**
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 * Numerical question renderer class.
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 * Numerical question renderer class.
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 *
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 *
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 * @package qtype_numerical
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 * @package qtype_numerical
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 * @copyright 2009 The Open University
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 * @copyright 2009 The Open University
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 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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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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 */
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/**
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/**
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 * Generates the output for short answer questions.
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 * Generates the output for numeric questions.
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 *
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 *
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 * @copyright 2009 The Open University
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 * @copyright 2009 The Open University
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 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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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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 */
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class qtype_numerical_renderer extends qtype_renderer {
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    public function formulation_and_controls(question_attempt $qa,
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            question_display_options $options) {
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class qtype_numerical_renderer extends qtype_renderer {
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    public function formulation_and_controls(question_attempt $qa, question_display_options $options) {
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        $question = $qa->get_question();
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        $question = $qa->get_question();
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        $currentanswer = $qa->get_last_qt_var('answer');
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        $currentanswer = $qa->get_last_qt_var('answer');
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        if ($question->has_separate_unit_field()) {
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        if ($question->has_separate_unit_field()) {
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            $selectedunit = $qa->get_last_qt_var('unit');
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            $selectedunit = $qa->get_last_qt_var('unit');
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        } else {
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        } else {
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            $selectedunit = null;
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            $selectedunit = null;
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        }
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        }
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 40 
 
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        $inputname = $qa->get_qt_field_name('answer');
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        $inputname = $qa->get_qt_field_name('answer');
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        $inputattributes = array(
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        $inputattributes = [
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            'type' => 'text',
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            'type' => 'text',
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            'name' => $inputname,
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            'name' => $inputname,
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            'value' => $currentanswer,
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            'value' => $currentanswer,
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            'id' => $inputname,
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            'id' => $inputname,
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            'size' => 30,
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            'size' => 30,
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            'class' => 'form-control d-inline',
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            'class' => 'form-control d-inline',
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        );
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        ];
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        if ($options->readonly) {
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        if ($options->readonly) {
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            $inputattributes['readonly'] = 'readonly';
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            $inputattributes['readonly'] = 'readonly';
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        }
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 53 
        }
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        $feedbackimg = '';
 54 
 
60 
        if ($options->correctness) {
 55 
        $feedbackimg = '';
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            list($value, $unit, $multiplier) = $question->ap->apply_units(
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        if ($options->correctness) {
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                    $currentanswer, $selectedunit);
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            [$value, $unit, $multiplier] = $question->ap->apply_units($currentanswer, $selectedunit);
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        $input = html_writer::empty_tag('input', $inputattributes) . $feedbackimg;
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        $input = html_writer::empty_tag('input', $inputattributes) . $feedbackimg;
82 
 
 77 
 
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        if ($question->has_separate_unit_field()) {
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        if ($question->has_separate_unit_field()) {
84 
            if ($question->unitdisplay == qtype_numerical::UNITRADIO) {
 79 
            if ($question->unitdisplay == qtype_numerical::UNITRADIO) {
85 
                $choices = array();
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                $choices = [];
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                $i = 1;
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                $i = 1;
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                foreach ($question->ap->get_unit_options() as $unit) {
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                foreach ($question->ap->get_unit_options() as $unit) {
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                    $id = $qa->get_qt_field_name('unit') . '_' . $i++;
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                    $id = $qa->get_qt_field_name('unit') . '_' . $i++;
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                    $radioattrs = array('type' => 'radio', 'id' => $id, 'value' => $unit,
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                    $radioattrs = ['type' => 'radio', 'id' => $id, 'value' => $unit,
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                            'name' => $qa->get_qt_field_name('unit'));
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                            'name' => $qa->get_qt_field_name('unit')];
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                    if ($unit == $selectedunit) {
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                    if ($unit == $selectedunit) {
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                        $radioattrs['checked'] = 'checked';
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                        $radioattrs['checked'] = 'checked';
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                    }
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                    }
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                    $choices[] = html_writer::tag(
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                    $choices[] = html_writer::tag('label',
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                        'label',
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                        html_writer::empty_tag('input', $radioattrs) . $unit,
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                            html_writer::empty_tag('input', $radioattrs) . $unit,
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                        ['for' => $id, 'class' => 'unitchoice']
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                            array('for' => $id, 'class' => 'unitchoice'));
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                    );
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                }
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                $unitchoice = html_writer::tag('span', implode(' ', $choices),
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                }
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100 
                        array('class' => 'unitchoices'));
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                $unitchoice = html_writer::tag('span', implode(' ', $choices), ['class' => 'unitchoices']);
101 
 
 97 
            } else if ($question->unitdisplay == qtype_numerical::UNITSELECT) {
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                $unitchoice = html_writer::label(
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                    get_string('selectunit', 'qtype_numerical'),
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                    'menu' . $qa->get_qt_field_name('unit'),
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                    false,
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            } else if ($question->unitdisplay == qtype_numerical::UNITSELECT) {
 102 
                    ['class' => 'accesshide']
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                $unitchoice = html_writer::label(get_string('selectunit', 'qtype_numerical'),
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                );
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                $unitchoice .= html_writer::select(
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                    $question->ap->get_unit_options(),
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                        'menu' . $qa->get_qt_field_name('unit'), false, array('class' => 'accesshide'));
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                    $qa->get_qt_field_name('unit'),
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                    $selectedunit,
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                $unitchoice .= html_writer::select($question->ap->get_unit_options(),
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                    ['' => 'choosedots'],
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                        $qa->get_qt_field_name('unit'), $selectedunit, array(''=>'choosedots'),
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                    ['disabled' => $options->readonly, 'class' => 'd-inline-block']
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                        array('disabled' => $options->readonly));
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                );
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            }
 111 
            }
109 
 
 112 
 
110 
            if ($question->ap->are_units_before()) {
 113 
            if ($question->ap->are_units_before()) {
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                $input = $unitchoice . ' ' . $input;
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                $input = $unitchoice . ' ' . $input;
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            } else {
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            } else {
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                $input = $input . ' ' . $unitchoice;
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            }
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                $input = $input . ' ' . $unitchoice;
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        }
114 
            }
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        if ($placeholder) {
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        }
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            $inputinplace = html_writer::tag(
116 
 
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                'label',
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                $options->add_question_identifier_to_label(get_string('answer')),
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                ['for' => $inputattributes['id'], 'class' => 'visually-hidden']
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        if ($placeholder) {
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            );
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            $inputinplace .= $input;
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            $questiontext = substr_replace(
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            $inputinplace = html_writer::tag('label', $options->add_question_identifier_to_label(get_string('answer')),
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                $questiontext,
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                    array('for' => $inputattributes['id'], 'class' => 'sr-only'));
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                $inputinplace,
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            $inputinplace .= $input;
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                strpos($questiontext, $placeholder),
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            $questiontext = substr_replace($questiontext, $inputinplace,
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                strlen($placeholder)
122 
                    strpos($questiontext, $placeholder), strlen($placeholder));
 132 
            );
123 
        }
 133 
        }
124 
 
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        $result = html_writer::tag('div', $questiontext, array('class' => 'qtext'));
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 135 
        $result = html_writer::tag('div', $questiontext, ['class' => 'qtext']);
127 
        if (!$placeholder) {
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            $result .= html_writer::start_tag('div', ['class' => 'ablock d-flex flex-wrap align-items-center']);
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        if (!$placeholder) {
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            $label = $options->add_question_identifier_to_label(get_string('answercolon', 'qtype_numerical'), true);
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            $result .= html_writer::start_tag('div', ['class' => 'ablock d-flex flex-wrap align-items-center']);
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            $label = $options->add_question_identifier_to_label(get_string('answercolon', 'qtype_numerical'), true);
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            $result .= html_writer::tag('label', $label,
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            $result .= html_writer::tag('label', $label, ['for' => $inputattributes['id']]);
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                array('for' => $inputattributes['id']));
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            $result .= html_writer::tag('span', $input, ['class' => 'answer']);
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            $result .= html_writer::end_tag('div');
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            $result .= html_writer::tag('span', $input, array('class' => 'answer'));
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        }
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            $result .= html_writer::end_tag('div');
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        }
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        if ($qa->get_state() == question_state::$invalid) {
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        if ($question->has_separate_unit_field()) {
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        if ($question->has_separate_unit_field()) {
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            $selectedunit = $qa->get_last_qt_var('unit');
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            $selectedunit = $qa->get_last_qt_var('unit');
150 
        } else {
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        } else {
151 
            $selectedunit = null;
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            $selectedunit = null;
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        }
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        }
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        list($value, $unit, $multiplier) = $question->ap->apply_units(
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        [$value, $unit, $multiplier] = $question->ap->apply_units($qa->get_last_qt_var('answer'), $selectedunit);
154 
                $qa->get_last_qt_var('answer'), $selectedunit);
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        $answer = $question->get_matching_answer($value, $multiplier);
 165 
        $answer = $question->get_matching_answer($value, $multiplier);
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 166 
 
157 
        if ($answer && $answer->feedback) {
 167 
        if ($answer && $answer->feedback) {
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            $feedback = $question->format_text(
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                $answer->feedback,
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                $answer->feedbackformat,
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                $qa,
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            $feedback = $question->format_text($answer->feedback, $answer->feedbackformat,
 172 
                'question',
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                'answerfeedback',
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                $answer->id
159 
                    $qa, 'question', 'answerfeedback', $answer->id);
 175 
            );
160 
        } else {
 176 
        } else {
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            $feedback = '';
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            $feedback = '';
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        }
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        }