Source of file MailTemplate.php

<?php

namespace BWF\DocumentTemplates\MailTemplates;

use BWF\DocumentTemplates\DocumentTemplates\DocumentTemplate;

use BWF\DocumentTemplates\EditableTemplates\EditableTemplate;

trait MailTemplate

{

    use DocumentTemplate;

    protected function getSubject()

    {

        return $this->model->subject ?? '';

    }

    public function renderSubject()

    {

        $editableTemplate = new EditableTemplate();

        $editableTemplate->setName('subject');

        $editableTemplate->setContent($this->getSubject());

        return $this->layout->renderSingle($editableTemplate, $this->templateData);

    }

}