src/Biz/Question/Event/QuestionAnalysisEventSubscriber.php

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<?php

namespace Biz\Question\Event;

use AppBundle\Common\ArrayToolkit;
use Codeages\Biz\Framework\Event\Event;
use Codeages\PluginBundle\Event\EventSubscriber;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

class QuestionAnalysisEventSubscriber extends EventSubscriber implements EventSubscriberInterface
{
    public static function getSubscribedEvents()
    {
        return array(
            'exam.finish' => 'onTestpaperQuestionAnalysis',
            'exam.reviewed' => 'onTestpaperQuestionAnalysis',
        );
    }

    public function onTestpaperQuestionAnalysis(Event $event)
    {
        $paperResult = $event->getSubject();

        if ('finished' != $paperResult['status'] || !in_array($paperResult['type'], array('testpaper', 'homework'))) {
            return;
        }

        $questions = $this->findFormateQuestions($paperResult['testId']);

        $this->createAnalysisItems($paperResult, $questions);

        $this->updateAnalysisItems($paperResult, $questions);
    }

    protected function findFormateQuestions($paperId)
    {
        $items = $this->getTestpaperService()->findItemsByTestId($paperId);
        $questions = $this->getQuestionService()->findQuestionsByIds(ArrayToolkit::column($items, 'questionId'));

        foreach ($questions as $key => $question) {
            $questions[$key]['score'] = $items[$question['id']]['score'];
        }

        return $questions;
    }

    protected function createAnalysisItems($paperResult, $questions)
    {
        if (empty($questions)) {
            return false;
        }

        $analysisItems = array();

        $questionIds = ArrayToolkit::column($questions, 'id');
        $analysis = $this->findExistAnalysis($paperResult['testId'], $paperResult['type'], $paperResult['lessonId']);

        foreach ($questions as $question) {
            $choices = $this->getQuestionChoices($question, $paperResult['type']);
            $itemAnalysis = empty($analysis[$question['id']]) ? array() : ArrayToolkit::index($analysis[$question['id']], 'choiceIndex');