class.ilMailTemplateSelectInputGUI.php

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<?php

declare(strict_types=1);

class ilMailTemplateSelectInputGUI extends ilSelectInputGUI
{
    public function __construct(string $a_title, string $a_postvar, protected string $url, protected array $fields)
    {
        parent::__construct($a_title, $a_postvar);
    }

    public function render($a_mode = ''): string
    {
        $html = parent::render($a_mode);

        $tpl = new ilTemplate(
            'tpl.prop_template_select_container.html',
            true,
            true,
            'Services/Mail'
        );
        $tpl->setVariable('CONTENT', $html);
        $tpl->setVariable('FIELDS', json_encode($this->fields, JSON_THROW_ON_ERROR));
        $tpl->setVariable('URL', $this->url);
        $tpl->setVariable('ID', $this->getFieldId());

        return $tpl->get();
    }
}