Мелкие улучшения в админке модуля магазина

if (!empty( $_GET["search_name"] ))
{
$get_nav_params["search_name"] = $this->diafan->get_param($_GET, "search_name", '', 1);
$this->diafan->get_nav .= ( $this->diafan->get_nav ? '&' : '?' ).'search_name='.$get_nav_params["search_name"];
$this->diafan->where .= " AND ([name] LIKE '%%".str_replace(array("'", "%"), array("\\'", "%%"), $get_nav_params["search_name"])."%%' OR article LIKE '%%".str_replace(array("'", "%"), array("\\'", "%%"), $get_nav_params["search_name"])."%%')";
}
if (!empty( $_GET["no_buy"] ))
{
$get_nav_params["no_buy"] = '1';
$this->diafan->get_nav .= ( $this->diafan->get_nav ? '&' : '?' ).'no_buy=1';
$this->diafan->where .= " AND no_buy='1'";
}

if (!empty( $_GET["hit"] ))
{
$get_nav_params["hit"] = '1';
$this->diafan->get_nav .= ( $this->diafan->get_nav ? '&' : '?' ).'hit=1';
$this->diafan->where .= " AND hit='1'";
}

if (!empty( $_GET["new"] ))
{
$get_nav_params["new"] = '1';
$this->diafan->get_nav .= ( $this->diafan->get_nav ? '&' : '?' ).'new=1';
$this->diafan->where .= " AND new='1'";
}

if (!empty( $_GET["action"] ))
{
$get_nav_params["action"] = '1';
$this->diafan->get_nav .= ( $this->diafan->get_nav ? '&' : '?' ).'action=1';
$this->diafan->where .= " AND action='1'";
}

$this->diafan->get_nav_params = $get_nav_params;
}

/**
* Поиск
*
* @return boolean
*/
public function show_search()
{
$html = '
<form action="'.BASE_PATH_HREF.$this->diafan->rewrite.'/'.( $this->diafan->cat ? 'cat'.$this->diafan->cat.'/' : '' ).'" method="GET">
'.$this->diafan->_('Название').' <input type="text" name="search_name" value="'.(! empty($this->diafan->get_nav_params["search_name"]) ? $this->diafan->get_nav_params["search_name"] : '' ).'" size="20">&nbsp;&nbsp;&nbsp;
'.$this->diafan->_('Временно отсутствует').'<input name="no_buy" value="1" type="checkbox"'.(! empty($this->diafan->get_nav_params["no_buy"]) ? ' checked' : '').'>&nbsp;&nbsp;
'.$this->diafan->_('Хит').'<input name="hit" value="1" type="checkbox"'.(! empty($this->diafan->get_nav_params["hit"]) ? ' checked' : '').'>&nbsp;&nbsp;
'.$this->diafan->_('Новинка').'<input name="new" value="1" type="checkbox"'.(! empty($this->diafan->get_nav_params["new"]) ? ' checked' : '').'>&nbsp;&nbsp;
'.$this->diafan->_('Акция').'<input name="action" value="1" type="checkbox"'.(! empty($this->diafan->get_nav_params["action"]) ? ' checked' : '').'>&nbsp;&nbsp;
<input type="submit" class="button" value="'.$this->diafan->_('Найти').'">
</form>';

return $html;
}