114 lines
4.0 KiB
PHP
114 lines
4.0 KiB
PHP
<?php
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namespace common\services;
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use backend\modules\questionnaire\models\Answer;
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use common\models\UserQuestionnaire;
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use common\models\UserResponse;
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use yii\base\InvalidConfigException;
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use yii\helpers\ArrayHelper;
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class ScoreCalculatorService
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{
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public static function rateResponses(UserQuestionnaire $user_questionnaire)
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{
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$responses = $user_questionnaire->getUserResponses()->all();
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foreach ($responses as $response) {
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self::rateOneResponse($response);
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}
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}
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public static function rateOneResponse(UserResponse $response)
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{
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if ($response->getQuestionTypeValue() != 1) { // not open question
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$correct_answers = $response->getCorrectAnswers();
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foreach ($correct_answers as $correct_answer) {
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if ($response->response_body === $correct_answer['answer_body']) {
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$response->answer_flag = 1;
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$response->save();
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return;
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}
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}
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$response->answer_flag = 0;
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$response->save();
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}
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}
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public static function checkAnswerFlagsForNull(UserQuestionnaire $userQuestionnaire): bool
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{
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$responses = $userQuestionnaire->getUserResponses()->AsArray()->all();
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foreach ($responses as $response) {
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if (ArrayHelper::isIn(null, $response))
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return false;
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}
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return true;
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}
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/**
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* @throws InvalidConfigException
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*/
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public static function calculateScore(UserQuestionnaire $userQuestionnaire)
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{
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$responses_questions = $userQuestionnaire->hasMany(UserResponse::className(), ['user_questionnaire_uuid' => 'uuid'])
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->joinWith('question')->asArray()->all();
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$score = null;
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$user_correct_answers_num = null;
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foreach ($responses_questions as $response_question) {
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if(self::isCorrect($response_question['answer_flag'])) {
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$user_correct_answers_num += 1;
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switch ($response_question['question']['question_type_id']) {
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case '1': // open question
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$score += $response_question['answer_flag'] * $response_question['question']['score'];
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break;
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case '2': // one answer
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$score += $response_question['question']['score'];
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break;
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case '3': // multi answer
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$score += $response_question['question']['score'] / self::correctAnswersNum($response_question['question']['id']);
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break;
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case '4': // istina-loz
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$score += $response_question['question']['score'];
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break;
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}
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}
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}
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self::setPercentCorrectAnswers($user_correct_answers_num, $userQuestionnaire);
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$userQuestionnaire->score = round($score);
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$userQuestionnaire->status = 2;
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$userQuestionnaire->testing_date = date('Y:m:d H:i:s');
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$userQuestionnaire->save();
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}
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protected static function isCorrect($answer_flag): bool
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{
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if ($answer_flag > 0) {
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return true;
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}
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return false;
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}
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protected static function correctAnswersNum($question_id)
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{
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return Answer::numCorrectAnswers($question_id);
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}
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/**
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* @throws InvalidConfigException
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*/
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protected static function setPercentCorrectAnswers($user_correct_answers_num, UserQuestionnaire $userQuestionnaire)
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{
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if($user_correct_answers_num !== null) {
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$all_correct_answers_num = $userQuestionnaire->numCorrectAnswersWithoutOpenQuestions();
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$all_correct_answers_num += $userQuestionnaire->numOpenQuestionsAnswers();
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$percent = $user_correct_answers_num / $all_correct_answers_num;
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$userQuestionnaire->percent_correct_answers = round($percent, 2);
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}
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else {
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$userQuestionnaire->percent_correct_answers = round($user_correct_answers_num, 2);
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}
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}
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} |