TemplateFieldHandler::prepareTitle

public function prepareTitle(): self
{
	if (
		$this->templateId
		&& !array_key_exists('TITLE', $this->fields)
	)
	{
		return $this;
	}

	if (!array_key_exists('TITLE', $this->fields))
	{
		throw new TemplateFieldValidateException(Loc::getMessage('TASKS_BAD_TITLE'));
	}

	if (
		array_key_exists('TITLE', $this->fields)
		&& $this->fields['TITLE'] === ''
	)
	{
		throw new TemplateFieldValidateException(Loc::getMessage('TASKS_BAD_TITLE'));
	}

	$this->fields['TITLE'] = Emoji::encode($this->fields['TITLE']);

	return $this;
}