class.ilWebLinkDraftParameter.php

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<?php

declare(strict_types=1);

class ilWebLinkDraftParameter extends ilWebLinkBaseParameter
{
    public const LINKS_ERR_NO_NAME = 'links_no_name_given';
    public const LINKS_ERR_NO_VALUE = 'links_no_value_given';
    public const LINKS_ERR_NO_NAME_VALUE = 'links_no_name_no_value';


    protected ?ilWebLinkParameter $old_parameter = null;

    public function replaces(?ilWebLinkParameter $old_parameter): ilWebLinkDraftParameter
    {
        $this->old_parameter = $old_parameter;
        return $this;
    }

    public function getOldParameter(): ?ilWebLinkParameter
    {
        return $this->old_parameter;
    }

    public function validate(): string
    {
        if (!strlen($this->getName()) && !$this->getValue()) {
            return self::LINKS_ERR_NO_NAME_VALUE;
        }
        if (!strlen($this->getName())) {
            return self::LINKS_ERR_NO_NAME;
        }
        if (!$this->getValue()) {
            return self::LINKS_ERR_NO_VALUE;
        }
        return '';
    }
}