Cc13Quiz::getAnswersFib()

Complexity

Conditions	19
Paths	350

Size

Total Lines	88
Code Lines	52

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php
    private function getAnswersFib($questionIdentifier, $identifier, $assessment, &$lastAnswerId)
    {
        $xpath = Cc1p3Convert::newxPath($assessment, Cc1p3Convert::getquizns());

        $correctanswersfib = [];
        $incorrectanswersfib = [];

        $responseItems = $xpath->query('//xmlns:item[@ident="'.$questionIdentifier.'"]/xmlns:resprocessing/xmlns:respcondition');

        $correctrespcond = $xpath->query('//xmlns:item[@ident="'.$questionIdentifier.'"]/xmlns:resprocessing/xmlns:respcondition/xmlns:setvar[text()="100"]/..');
        $correctanswers = $xpath->query('xmlns:conditionvar/xmlns:varequal', $correctrespcond->item(0));

        // Correct answers.
        foreach ($correctanswers as $correctans) {
            $answertitle = !empty($correctans->nodeValue) ? $correctans->nodeValue : '';
            if (empty($answertitle)) {
                continue;
            }

            $lastAnswerId++;

            $correctanswersfib[$answertitle] = [
                'id' => $lastAnswerId,
                'title' => $answertitle,
                'score' => 1,
                'feedback' => '',
                'case' => 0, ];
        }

        // Handle incorrect answers and feedback for all items.
        foreach ($responseItems as $response_item) {
            $setvar = $xpath->query('xmlns:setvar', $response_item);
            if (!empty($setvar->length) && $setvar->item(0)->nodeValue == '100') {
                // Skip the correct answer responsecondition.
                continue;
            }

            $varequal = $xpath->query('xmlns:conditionvar/xmlns:varequal', $response_item);
            if (empty($varequal->length)) {
                // Skip respcondition elements that don't have varequal containing an answer
                continue;
            }
            $answerTitle = !empty($varequal->item(0)->nodeValue) ? $varequal->item(0)->nodeValue : '';

            $displayFeedback = $xpath->query('xmlns:displayfeedback', $response_item);

            unset($feedbackIdentifiers);

            if (!empty($displayFeedback)) {
                foreach ($displayFeedback as $feedback) {
                    $feedbackIdentifier = $feedback->getAttributeNode('linkrefid');
                    $feedbackIdentifier = !empty($feedbackIdentifier->nodeValue) ? $feedbackIdentifier->nodeValue : '';

                    if (!empty($feedbackIdentifier)) {
                        $feedbackIdentifiers[] = $feedbackIdentifier;
                    }
                }
            }

            $feedback = '';
            $feedbackIdentifiers = empty($feedbackIdentifiers) ? '' : $feedbackIdentifiers;

            if (!empty($feedbackIdentifiers)) {
                foreach ($feedbackIdentifiers as $feedbackIdentifier) {
                    $feedbacks = $xpath->query('//xmlns:item[@ident="'.$questionIdentifier.'"]/xmlns:itemfeedback[@ident="'.$feedbackIdentifier.'"]/xmlns:flow_mat/xmlns:material/xmlns:mattext');
                    $feedback .= !empty($feedbacks->item(0)->nodeValue) ? $feedbacks->item(0)->nodeValue.' ' : '';
                }
            }

            if (array_key_exists($answerTitle, $correctanswersfib)) {
                // Already a correct answer, just need the feedback for the correct answer.
                $correctanswerfib[$answerTitle]['feedback'] = $feedback;
            } else {
                // Need to add an incorrect answer.
                $lastAnswerId++;
                $incorrectanswersfib[] = [
                    'id' => $lastAnswerId,
                    'title' => $answerTitle,
                    'score' => 0,
                    'feedback' => $feedback,
                    'case' => 0, ];
            }
        }

        $answersFib = array_merge($correctanswersfib, $incorrectanswersfib);
        $answersFib = empty($answersFib) ? '' : $answersFib;

        return $answersFib;
    }