Вывод фильтра в компоненте - Разработка расширений для Joomla 3.x

<fieldset id="filter-bar">
<div class="filter-select fltrt">
<select name="filter.razdel_id" class="inputbox" onchange="this.form.submit()">
 <option value=""><?php echo JText::_('JOPTION_SELECT_CATEGORY');?></option>
 <?php echo JHtml::_('select.options', JHtml::_('category.options', 'com_tw'), 'value', 'text', $this->filter.razdel_id); ?>
</select>
</div>
</fieldset>

protected function getListQuery(){
		$db		= $this->getDbo();
		$query	= $db->getQuery(true);

		// Select the required fields from the table.
		$query->select(
			$this->getState(
				'list.select',
				'a.sort, a.name, a.alias, a.img_product, a.brand, a.category, a.description, a.published, a.checked_out, a.checked_out_time, a.ordering, a.id'
			)
		);
		$query->from($db->quoteName('#__tw_products').' AS a');
		
		// Join over the Brands.
		$query->select('brand.name AS brand_title, brand.id AS brand_id');
		$query->join('LEFT', '#__tw_brand AS brand ON brand.id = a.brand');
		
		// Filter by Brand.
		$brandId = $this->getState('filter.brand_id');
		if (is_numeric($brandId)){
			$query->where('a.brand = '.(int) $brandId);
		}
				
		// Join over the Razdels.
		$query->select('razdels.name AS razdel_title, razdels.id AS razdel_id');
		$query->join('LEFT', '#__tw_razdels AS razdels ON razdels.id = a.category');
		
		// Filter by Razdel.
		$razdelId = $this->getState('filter.razdel_id');
		if (is_numeric($razdelId)){
			$query->where('a.category = '.(int) $razdelId);
		}
.......................

<div class="btn-group pull-right hidden-phone">
	<select name="filter[categoryId]" onchange="this.form.submit()">
		<option value=""><?php echo JText::_('JOPTION_SELECT_CATEGORY'); ?></option>
		<?php echo JHtml::_(
			'select.options',
			JHtml::_('category.options', 'com_competition'), 'value', 'text', $this->state->get('filter.categoryId')
		); ?>
	</select>
</div>

<?php 

// No direct access to this file
defined('_JEXEC') or die('Restricted access');
?>
<div class="componentheading<?php echo $this->escape($this->params->get('pageclass_sfx')); ?>"><h2><?php echo $this->params->get('page_title');  ?></h2></div>
<div><h4><?php echo JText::_('COM_TW_PRODUCTS_VIEW_DEFAULT_PAGE_DESC'); ?></h4></div>


<div class="btn-group pull-right hidden-phone">
	<select name="filter[category_id]" onchange="this.form.submit()">
		<option value=""><?php echo JText::_('JOPTION_SELECT_CATEGORY'); ?></option>
		<?php echo JHtml::_(
			'select.options',
			JHtml::_('category.options', 'com_tw'), 'value', 'text', $this->state->get('filter.category_id')
		); ?>
	</select>
</div>

<table class="table table-condensed table-hover">
<thead>
	<tr>
		
		<th>Sort</th>
		<th>Name</th>
		<th>Alias</th>
		<th>Img Product</th>
		<th>Brand</th>
		<th>Category</th>
		<th>Description</th>
		<th>Published</th>
		<th>Checked Out</th>
		<th>Checked Out Time</th>
		<th>Ordering</th>
		<th>Id</th>

	</tr>
</thead>
<tbody>
<?php 
foreach($this->items as $item){ ?>
	<tr>	

		<td><?php echo $item->sort; ?></td>
		<td><a href="index.php?option=com_tw&view=products&id=<?php echo $item->id; ?>"><?php echo $item->name.((isset($item->category_id) && isset($item->params) && $item->category_id and $item->params->get('show_category'))? (' ('.$item->category_id.')') : '');  ?></a></td>
		<td><?php echo $item->alias; ?></td>
		<td><?php echo $item->img_product; ?></td>
		<td><?php echo $item->brand; ?></td>
		<td><?php echo $item->category; ?></td>
		<td><?php echo $item->description; ?></td>
		<td><?php echo $item->published; ?></td>
		<td><?php echo $item->checked_out; ?></td>
		<td><?php echo $item->checked_out_time; ?></td>
		<td><?php echo $item->ordering; ?></td>
		<td><?php echo $item->id; ?></td>

	</tr>
<?php } ?>
</tbody>
</table>

JHtml::_('category.options', 'com_tw')