class.ilAssQuestionSkillAssignmentImporter.php

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<?php

class ilAssQuestionSkillAssignmentImporter
{
    protected $db;

    private $targetParentObjId;

    protected $importInstallationId;

    protected $importMappingRegistry;

    protected $importMappingComponent;
    protected $importAssignmentList;

    protected $failedImportAssignmentList;

    protected $successImportAssignmentList;

    public function __construct()
    {
        global $DIC;
        $ilDB = $DIC['ilDB'];
        $this->db = $ilDB;

        $this->targetParentObjId = null;
        $this->importInstallationId = null;
        $this->importMappingRegistry = null;
        $this->importAssignmentList = null;
        $this->failedImportAssignmentList = new ilAssQuestionSkillAssignmentImportList();
        $this->successImportAssignmentList = new ilAssQuestionSkillAssignmentList($this->db);
    }

    public function setTargetParentObjId($targetParentObjId): void
    {
        $this->targetParentObjId = $targetParentObjId;
    }

    public function getTargetParentObjId(): ?int
    {
        return $this->targetParentObjId;
    }

    public function getImportInstallationId(): ?int
    {
        return $this->importInstallationId;
    }

    public function setImportInstallationId($importInstallationId): void
    {
        $this->importInstallationId = $importInstallationId;
    }

    public function getImportMappingRegistry(): ?ilImportMapping
    {
        return $this->importMappingRegistry;
    }

    public function setImportMappingRegistry($importMappingRegistry): void
    {
        $this->importMappingRegistry = $importMappingRegistry;
    }

    public function getImportMappingComponent(): string
    {
        return $this->importMappingComponent;
    }

    public function setImportMappingComponent($importMappingComponent): void
    {
        $this->importMappingComponent = $importMappingComponent;
    }

    public function getImportAssignmentList(): ?ilAssQuestionSkillAssignmentImportList
    {
        return $this->importAssignmentList;
    }

    public function setImportAssignmentList($importAssignmentList): void
    {
        $this->importAssignmentList = $importAssignmentList;
    }

    public function getFailedImportAssignmentList(): ilAssQuestionSkillAssignmentImportList
    {
        return $this->failedImportAssignmentList;
    }

    public function getSuccessImportAssignmentList(): ilAssQuestionSkillAssignmentList
    {
        return $this->successImportAssignmentList;
    }

    public function setSuccessImportAssignmentList($successImportAssignmentList): void
    {
        $this->successImportAssignmentList = $successImportAssignmentList;
    }

    /*
        $r = ilBasicSkill::getCommonSkillIdForImportId($a_source_inst_id,
        $a_skill_import_id, $a_tref_import_id);

        $results[] = array("skill_id" => $rec["obj_id"], "tref_id" => $t,
        "creation_date" => $rec["creation_date"]);
    */

    public function import(): void
    {
        foreach ($this->getImportAssignmentList() as $assignment) {
            $foundSkillId = $this->getSkillIdMapping(
                $assignment->getImportSkillBaseId(),
                $assignment->getImportSkillTrefId()
            );

            if (!$this->isValidSkill($foundSkillId)) {
                $this->getFailedImportAssignmentList()->addAssignment($assignment);
                continue;
            }

            $this->getImportMappingRegistry()->addMapping(
                'Modules/Test',
                'skl_base_id_reverse',
                $foundSkillId['skill_id'],
                $assignment->getImportSkillBaseId()
            );

            $this->getImportMappingRegistry()->addMapping(
                'Modules/Test',
                'skl_tref_id_reverse',
                $foundSkillId['tref_id'],
                $assignment->getImportSkillTrefId()
            );

            $importableAssignment = $this->buildImportableAssignment($assignment, $foundSkillId);

            foreach ($assignment->getImportSolutionComparisonExpressionList() as $solCompExp) {
                $importableSolCompExp = $this->buildImportableSolutionComparisonExpression($solCompExp);
                $importableAssignment->getSolutionComparisonExpressionList()->add($importableSolCompExp);
            }

            $importableAssignment->saveToDb();
            $importableAssignment->saveComparisonExpressions();

            // add skill usage
            ilSkillUsage::setUsage($this->getTargetParentObjId(), $foundSkillId['skill_id'], $foundSkillId['tref_id']);

            $this->getSuccessImportAssignmentList()->addAssignment($importableAssignment);
        }
    }

    protected function buildImportableAssignment(ilAssQuestionSkillAssignmentImport $assignment, $foundSkillId): ilAssQuestionSkillAssignment
    {
        $importableAssignment = new ilAssQuestionSkillAssignment($this->db);

        $importableAssignment->setEvalMode($assignment->getEvalMode());
        $importableAssignment->setSkillPoints($assignment->getSkillPoints());

        $importableAssignment->setSkillBaseId($foundSkillId['skill_id']);
        $importableAssignment->setSkillTrefId($foundSkillId['tref_id']);

        $importableAssignment->setParentObjId($this->getTargetParentObjId());

        $importableAssignment->setQuestionId($this->getImportMappingRegistry()->getMapping(
            $this->getImportMappingComponent(),
            'quest',
            $assignment->getImportQuestionId()
        ));

        $importableAssignment->initSolutionComparisonExpressionList();

        return $importableAssignment;
    }

    protected function buildImportableSolutionComparisonExpression(ilAssQuestionSolutionComparisonExpressionImport $solCompExp): ilAssQuestionSolutionComparisonExpression
    {
        $importableSolCompExp = new ilAssQuestionSolutionComparisonExpression($this->db);

        $importableSolCompExp->setOrderIndex($solCompExp->getOrderIndex());
        $importableSolCompExp->setExpression($solCompExp->getExpression());
        $importableSolCompExp->setPoints($solCompExp->getPoints());

        return $importableSolCompExp;
    }

    protected function isValidSkill($foundSkillData): bool
    {
        if (!is_array($foundSkillData) || !isset($foundSkillData['skill_id']) || !$foundSkillData['skill_id']) {
            return false;
        }

        return true;
    }

    protected function getSkillIdMapping($importSkillBaseId, $importSkillTrefId)
    {
        if ($this->getImportInstallationId() == $this->getLocalInstallationId()) {
            return array( 'skill_id' => $importSkillBaseId, 'tref_id' => $importSkillTrefId );
        }

        $foundSkillData = ilBasicSkill::getCommonSkillIdForImportId(
            $this->getImportInstallationId(),
            $importSkillBaseId,
            $importSkillTrefId
        );

        return current($foundSkillData);
    }

    protected function getLocalInstallationId(): ?string
    {
        global $DIC; /* @var ILIAS\DI\Container $DIC */

        return $DIC->settings()->get('inst_id', 0);
    }
}