public function subquestion(question_attempt $qa, question_display_options $options, $index, question_graded_automatically $subq) { $fieldprefix = 'sub' . $index . '_'; $fieldname = $fieldprefix . 'answer'; $response = $qa->get_last_qt_var($fieldname); $inputattributes = array( 'type' => 'radio', 'name' => $qa->get_qt_field_name($fieldname), ); if ($options->readonly) { $inputattributes['disabled'] = 'disabled'; } $result = $this->all_choices_wrapper_start(); $fraction = null; foreach ($subq->get_order($qa) as $value => $ansid) { $ans = $subq->answers[$ansid]; $inputattributes['value'] = $value; $inputattributes['id'] = $inputattributes['name'] . $value; $isselected = $subq->is_choice_selected($response, $value); if ($isselected) { $inputattributes['checked'] = 'checked'; $fraction = $ans->fraction; } else { unset($inputattributes['checked']); } $class = 'r' . ($value % 2); if ($options->correctness && $isselected) { $feedbackimg = $this->feedback_image($ans->fraction); $class .= ' ' . $this->feedback_class($ans->fraction); } else { $feedbackimg = ''; } $result .= $this->choice_wrapper_start($class); $result .= html_writer::empty_tag('input', $inputattributes); $result .= html_writer::tag('label', $subq->format_text($ans->answer, $ans->answerformat, $qa, 'question', 'answer', $ansid), array('for' => $inputattributes['id'])); $result .= $feedbackimg; if ($options->feedback && $isselected && trim($ans->feedback)) { $result .= html_writer::tag('div', $subq->format_text($ans->feedback, $ans->feedbackformat, $qa, 'question', 'answerfeedback', $ansid), array('class' => 'specificfeedback')); } $result .= $this->choice_wrapper_end(); } $result .= $this->all_choices_wrapper_end(); $feedback = array(); if ($options->feedback && $options->marks >= question_display_options::MARK_AND_MAX && $subq->maxmark > 0) { $a = new stdClass(); $a->mark = format_float($fraction * $subq->maxmark, $options->markdp); $a->max = format_float($subq->maxmark, $options->markdp); $feedback[] = html_writer::tag('div', get_string('markoutofmax', 'question', $a)); } if ($options->rightanswer) { foreach ($subq->answers as $ans) { if (question_state::graded_state_for_fraction($ans->fraction) == question_state::$gradedright) { $feedback[] = get_string('correctansweris', 'qtype_multichoice', $subq->format_text($ans->answer, $ans->answerformat, $qa, 'question', 'answer', $ansid)); break; } } } $result .= html_writer::nonempty_tag('div', implode('<br />', $feedback), array('class' => 'outcome')); return $result; }
/** * Output the content of the subquestion. * * @param question_attempt $qa * @param question_display_options $options * @param int $index * @param question_graded_automatically $subq * @return string */ public function subquestion(question_attempt $qa, question_display_options $options, $index, question_graded_automatically $subq) { if (!$subq instanceof qtype_multichoice_multi_question) { throw new coding_exception('Expecting subquestion of type qtype_multichoice_multi_question'); } $fieldprefix = 'sub' . $index . '_'; $fieldname = $fieldprefix . 'choice'; // Extract the responses that related to this question + strip off the prefix. $fieldprefixlen = strlen($fieldprefix); $response = []; foreach ($qa->get_last_qt_data() as $name => $val) { if (substr($name, 0, $fieldprefixlen) == $fieldprefix) { $name = substr($name, $fieldprefixlen); $response[$name] = $val; } } $basename = $qa->get_qt_field_name($fieldname); $inputattributes = array( 'type' => 'checkbox', 'value' => 1, ); if ($options->readonly) { $inputattributes['disabled'] = 'disabled'; } $result = $this->all_choices_wrapper_start(); // Calculate the total score (as we need to know if choices should be marked as 'correct' or 'partial'). $fraction = 0; foreach ($subq->get_order($qa) as $value => $ansid) { $ans = $subq->answers[$ansid]; if ($subq->is_choice_selected($response, $value)) { $fraction += $ans->fraction; } } // Display 'correct' answers as correct, if we are at 100%, otherwise mark them as 'partial'. $answerfraction = ($fraction > 0.999) ? 1.0 : 0.5; foreach ($subq->get_order($qa) as $value => $ansid) { $ans = $subq->answers[$ansid]; $name = $basename.$value; $inputattributes['name'] = $name; $inputattributes['id'] = $name; $isselected = $subq->is_choice_selected($response, $value); if ($isselected) { $inputattributes['checked'] = 'checked'; } else { unset($inputattributes['checked']); } $class = 'r' . ($value % 2); if ($options->correctness && $isselected) { $thisfrac = ($ans->fraction > 0) ? $answerfraction : 0; $feedbackimg = $this->feedback_image($thisfrac); $class .= ' ' . $this->feedback_class($thisfrac); } else { $feedbackimg = ''; } $result .= $this->choice_wrapper_start($class); $result .= html_writer::empty_tag('input', $inputattributes); $result .= html_writer::tag('label', $subq->format_text($ans->answer, $ans->answerformat, $qa, 'question', 'answer', $ansid), array('for' => $inputattributes['id'])); $result .= $feedbackimg; if ($options->feedback && $isselected && trim($ans->feedback)) { $result .= html_writer::tag('div', $subq->format_text($ans->feedback, $ans->feedbackformat, $qa, 'question', 'answerfeedback', $ansid), array('class' => 'specificfeedback')); } $result .= $this->choice_wrapper_end(); } $result .= $this->all_choices_wrapper_end(); $feedback = array(); if ($options->feedback && $options->marks >= question_display_options::MARK_AND_MAX && $subq->maxmark > 0) { $a = new stdClass(); $a->mark = format_float($fraction * $subq->maxmark, $options->markdp); $a->max = format_float($subq->maxmark, $options->markdp); $feedback[] = html_writer::tag('div', get_string('markoutofmax', 'question', $a)); } if ($options->rightanswer) { $correct = []; foreach ($subq->answers as $ans) { if (question_state::graded_state_for_fraction($ans->fraction) != question_state::$gradedwrong) { $correct[] = $subq->format_text($ans->answer, $ans->answerformat, $qa, 'question', 'answer', $ans->id); } } $correct = '<ul><li>'.implode('</li><li>', $correct).'</li></ul>'; $feedback[] = get_string('correctansweris', 'qtype_multichoice', $correct); } $result .= html_writer::nonempty_tag('div', implode('<br />', $feedback), array('class' => 'outcome')); return $result; }