class.ilTestVirtualSequenceRandomQuestionSet.php

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<?php
 
declare(strict_types=1);
 
class ilTestVirtualSequenceRandomQuestionSet extends ilTestVirtualSequence implements ilTestRandomQuestionSequence
{
    private array $questions_source_pool_definition_map;
 
    public function __construct(ilDBInterface $db, ilObjTest $test_obj, ilTestSequenceFactory $test_sequence_facory)
    {
        parent::__construct($db, $test_obj, $test_sequence_facory);
 
        $this->questions_source_pool_definition_map = [];
    }
 
    public function getResponsibleSourcePoolDefinitionId(int $question_id): ?int
    {
        return $this->questions_source_pool_definition_map[$question_id];
    }
 
    protected function fetchQuestionsFromPasses(int $active_id, array $passes): void
    {
        $this->questions_pass_map = [];
 
        foreach ($passes as $pass) {
            $handled_source_pool_definitions = array_flip($this->questions_source_pool_definition_map);
 
            $test_sequence = $this->getTestSequence($active_id, $pass);
 
            foreach ($test_sequence->getOrderedSequenceQuestions() as $question_id) {
                $definition_id = $test_sequence->getResponsibleSourcePoolDefinitionId($question_id);
 
                if (isset($handled_source_pool_definitions[$definition_id])) {
                    continue;
                }
 
                if ($this->wasAnsweredInThisPass($test_sequence, $question_id)) {
                    $this->questions_pass_map[$question_id] = $pass;
 
                    $this->questions_source_pool_definition_map[$question_id] = $definition_id;
                }
            }
        }
    }
}