How to add pagination in subcategory collection in magento? - php

Question

I have written following code to display subcategories
<ul class="">
<?php
$_categories=$this->getCurrentChildCategories();
if($_categories->count()):
$categorycount = 0;
foreach ($_categories as $_category):
if($_category->getIsActive()):
$cur_category=Mage::getModel('catalog/category')->load($_category->getId());
$layer = Mage::getSingleton('catalog/layer');
$layer->setCurrentCategory($cur_category);
$catName = $this->getCurrentCategory()->getName();
?>
<li class="">
<div class="">
<div class="">
<div class=""> <a href="<?php echo $_category->getURL() ?>" title="<?php echo $this->htmlEscape($_category->getName()) ?>" class="">
<?php
$imageUrl = Mage::getBaseDir('media')."/"."catalog"."/"."category"."/".$this->getCurrentCategory()->getThumbnail();
$imageResized = Mage::getBaseDir('media')."/"."catalog"."/"."category"."/"."resize/".$this->getCurrentCategory()->getThumbnail();
if (!file_exists($imageResized) && file_exists($imageUrl))
{
$imageObj = new Varien_Image($imageUrl);
$imageObj->constrainOnly(TRUE);
$imageObj->keepAspectRatio(TRUE);
$imageObj->keepFrame(FALSE);
$imageObj->quality(100);
$imageObj->resize(270, 270);
$imageObj->save($imageResized);
}
?>
<span class=""><img src="<?php echo Mage::getBaseUrl('media').'catalog/category/resize/'.$this->getCurrentCategory()->getThumbnail(); ?>" alt="<?php echo $this->htmlEscape($_category->getName()) ?>"/></span> </a> </div>
</div>
<div class="">
<div class="">
<div class=""> <?php echo $this->htmlEscape($_category->getName()) ?> </div>
</div>
</div>
</div>
</li>
<?php
endif;
endforeach;
endif;
?>
</ul>
I want to add pagination in this page, i have tried solutions like following but it does not worked either
parent::_prepareLayout();
$pager = $this->getLayout()->createBlock('page/html_pager', 'custom.pager');
$pager->setAvailableLimit(array(15=>15));
$pager->setCollection($_categories);
$this->setChild('pager', $pager);
Can anyone have any idea on how to add pagination in subcategory listing page?
Please guide me as i am new to magento development.
Thanks in advance.

Answer 1

Inside Mage_Catalog_Block_Navigation I have custom method :
public function getCurrentChildCategories()
{
if (null === $this->_currentChildCategories) {
$layer = Mage::getSingleton('catalog/layer');
$category = $layer->getCurrentCategory();
$this->_currentChildCategories = Mage::getModel('catalog/category')->getCollection();
$pager = new Mage_Page_Block_Html_Pager();
$pager->setLimit(100)->setCollection($this->_currentChildCategories);
$this->setChild('pager', $pager);
/* #var $collection Mage_Catalog_Model_Resource_Eav_Mysql4_Category_Collection */
$this->_currentChildCategories->addAttributeToSelect('url_key')
->addAttributeToSelect('name')
->addAttributeToSelect('is_anchor')
->addAttributeToSelect('image')
->addAttributeToFilter('is_active', 1)
->addIdFilter($category->getChildren())
->setOrder('name', 'ASC')
->joinUrlRewrite()
->load();
$productCollection = Mage::getResourceModel('catalog/product_collection');
$layer->prepareProductCollection($productCollection);
$productCollection->addCountToCategories($this->_currentChildCategories);
}
return $this->_currentChildCategories;
}
I think it's not the best but it works.