class.ilAssQuestionSkillAssignmentExporter.php

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<?php

class ilAssQuestionSkillAssignmentExporter
{
    protected $xmlWriter;

    protected $questionIds;

    protected $assignmentList;

    public function __construct()
    {
        $this->xmlWriter = null;
        $this->questionIds = [];
        $this->assignmentList = null;
    }

    public function getXmlWriter(): ?ilXmlWriter
    {
        return $this->xmlWriter;
    }

    public function setXmlWriter(ilXmlWriter $xmlWriter): void
    {
        $this->xmlWriter = $xmlWriter;
    }

    public function getQuestionIds(): array
    {
        return $this->questionIds;
    }

    public function setQuestionIds($questionIds): void
    {
        $this->questionIds = $questionIds;
    }

    public function getAssignmentList(): ?ilAssQuestionSkillAssignmentList
    {
        return $this->assignmentList;
    }

    public function setAssignmentList($assignmentList): void
    {
        $this->assignmentList = $assignmentList;
    }

    public function export(): void
    {
        global $DIC;
        $ilDB = $DIC['ilDB'];

        $this->getXmlWriter()->xmlStartTag('QuestionSkillAssignments');

        foreach ($this->getQuestionIds() as $questionId) {
            $this->getXmlWriter()->xmlStartTag('TriggerQuestion', ['Id' => $questionId]);

            foreach ($this->getAssignmentList()->getAssignmentsByQuestionId($questionId) as $questionSkillAssignment) {
                /* @var ilAssQuestionSkillAssignment $questionSkillAssignment */

                $this->getXmlWriter()->xmlStartTag('TriggeredSkill', [
                    'BaseId' => $questionSkillAssignment->getSkillBaseId(),
                    'TrefId' => $questionSkillAssignment->getSkillTrefId()
                ]);

                $this->getXmlWriter()->xmlElement(
                    'OriginalSkillTitle',
                    null,
                    $questionSkillAssignment->getSkillTitle()
                );

                $this->getXmlWriter()->xmlElement(
                    'OriginalSkillPath',
                    null,
                    $questionSkillAssignment->getSkillPath()
                );

                switch ($questionSkillAssignment->getEvalMode()) {
                    case ilAssQuestionSkillAssignment::EVAL_MODE_BY_QUESTION_RESULT:

                        $this->getXmlWriter()->xmlElement('EvalByQuestionResult', [
                            'Points' => $questionSkillAssignment->getSkillPoints()
                        ]);
                        break;

                    case ilAssQuestionSkillAssignment::EVAL_MODE_BY_QUESTION_SOLUTION:

                        $this->getXmlWriter()->xmlStartTag('EvalByQuestionSolution');

                        $questionSkillAssignment->initSolutionComparisonExpressionList();
                        $expressionList = $questionSkillAssignment->getSolutionComparisonExpressionList();

                        foreach ($expressionList->get() as $expression) {
                            /* @var ilAssQuestionSolutionComparisonExpression $expression */

                            $this->getXmlWriter()->xmlStartTag('SolutionComparisonExpression', [
                                'Points' => $expression->getPoints(),
                                'Index' => $expression->getOrderIndex()
                            ]);

                            $this->getXmlWriter()->xmlData($expression->getExpression(), false, true);

                            $this->getXmlWriter()->xmlEndTag('SolutionComparisonExpression');
                        }

                        $this->getXmlWriter()->xmlEndTag('EvalByQuestionSolution');
                        break;
                }

                $this->getXmlWriter()->xmlEndTag('TriggeredSkill');
            }

            $this->getXmlWriter()->xmlEndTag('TriggerQuestion');
        }

        $this->getXmlWriter()->xmlEndTag('QuestionSkillAssignments');
    }
}