class.SurveyMultipleChoiceQuestionEvaluation.php

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<?php

class SurveyMultipleChoiceQuestionEvaluation extends SurveyQuestionEvaluation
{
    //
    // EXPORT
    //

    public function getUserSpecificVariableTitles(
        array &$a_title_row,
        array &$a_title_row2,
        bool $a_do_title,
        bool $a_do_label
    ): void {
        $lng = $this->lng;

        $categories = $this->question->getCategories();
        for ($i = 0; $i < $categories->getCategoryCount(); $i++) {
            $cat = $categories->getCategory($i);

            $a_title_row[] = $cat->title . " [" . $cat->scale . "]";
            $a_title_row2[] = "";

            if ($cat->other) {
                $a_title_row[] = $cat->title . " [" . $cat->scale . "]";
                $a_title_row2[] = $lng->txt('other');
            }
        }
    }

    public function addUserSpecificResults(
        array &$a_row,
        int $a_user_id,
        $a_results
    ): void {
        $categories = $this->question->getCategories();

        $answers = $a_results->getUserResults($a_user_id);
        if (count($answers) === 0) {
            $a_row[] = $this->getSkippedValue();

            for ($i = 0; $i < $categories->getCategoryCount(); $i++) {
                $cat = $categories->getCategory($i);
                $a_row[] = "";

                if ($cat->other) {
                    $a_row[] = "";
                }
            }
        } else {
            $a_row[] = "";

            for ($i = 0; $i < $categories->getCategoryCount(); $i++) {
                $cat = $categories->getCategory($i);
                $found = false;
                foreach ($answers as $answer) {
                    if ($answer[2] == $cat->scale) {
                        $a_row[] = $answer[2];
                        if ($cat->other) {
                            $a_row[] = $answer[1];
                        }
                        $found = true;
                    }
                }
                if (!$found) {
                    $a_row[] = ""; // "0" ?!
                    if ($cat->other) {
                        $a_row[] = "";
                    }
                }
            }
        }
    }

    protected function supportsSumScore(): bool
    {
        return true;
    }
}