class.ilAssQuestionSkillAssignmentImportList.php

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<?php

declare(strict_types=1);

class ilAssQuestionSkillAssignmentImportList implements Iterator
{
    protected array $assignments;

    public function __construct()
    {
        $this->assignments = [];
    }

    public function addAssignment(ilAssQuestionSkillAssignmentImport $assignment): void
    {
        $this->assignments[] = $assignment;
    }

    public function assignmentsExist(): bool
    {
        return count($this->assignments) > 0;
    }

    public function current(): ?ilAssQuestionSkillAssignmentImport
    {
        $current = current($this->assignments);
        return $current !== false ? $current : null;
    }

    public function next(): void
    {
        next($this->assignments);
    }

    public function key(): ?int
    {
        return key($this->assignments);
    }

    public function valid(): bool
    {
        $res = key($this->assignments);
        return $res !== null;
    }

    public function rewind(): void
    {
        reset($this->assignments);
    }
}