Mage_Rss_Block_Catalog_Special Class Reference

Inheritance diagram for Mage_Rss_Block_Catalog_Special:

List of all members.

Public Member Functions
	addSpecialXmlCallback ($args)
	sortByStartDate ($a, $b)
Protected Member Functions
	_construct ()
	_toHtml ()

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Detailed Description

Definition at line 34 of file Special.php.

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Member Function Documentation

_construct

(

)

[protected]

Internal constructor, that is called from real constructor

Please override this one instead of overriding real __construct constructor

Please override this one instead of overriding real __construct constructor

Reimplemented from Mage_Core_Block_Abstract.

Definition at line 36 of file Special.php.

    {
        /*
        * setting cache to save the rss for 10 minutes
        */
        $this->setCacheKey('rss_catalog_special_'.$this->getStoreId().'_'.$this->_getCustomerGroupId());
        $this->setCacheLifetime(600);
    }

_toHtml

(

)

[protected]

Render block HTML

Returns:

string

Reimplemented from Mage_Core_Block_Template.

Definition at line 45 of file Special.php.

    {
         //store id is store view id
        $storeId = $this->_getStoreId();
        $websiteId = Mage::app()->getStore($storeId)->getWebsiteId();

        //customer group id
        $custGroup =   $this->_getCustomerGroupId();

        $product = Mage::getModel('catalog/product');
        $todayDate = $product->getResource()->formatDate(time());

        $rulePriceWhere = "({{table}}.rule_date is null) or ({{table}}.rule_date='$todayDate' and {{table}}.website_id='$websiteId' and {{table}}.customer_group_id='$custGroup')";

        $specials = $product->setStoreId($storeId)->getResourceCollection()
            ->addAttributeToFilter('special_price', array('gt'=>0), 'left')
            ->addAttributeToFilter('special_from_date', array('date'=>true, 'to'=> $todayDate), 'left')
            ->addAttributeToFilter(array(
                array('attribute'=>'special_to_date', 'date'=>true, 'from'=>$todayDate),
                array('attribute'=>'special_to_date', 'is' => new Zend_Db_Expr('null'))
            ), '', 'left')
            ->addAttributeToSort('special_from_date', 'desc')
            ->addAttributeToSelect(array('name', 'short_description', 'description', 'price', 'thumbnail', 'special_to_date'), 'inner')
            ->joinTable('catalogrule/rule_product_price', 'product_id=entity_id', array('rule_price'=>'rule_price', 'rule_start_date'=>'latest_start_date'), $rulePriceWhere, 'left')
        ;

//public function join($table, $cond, $cols='*')
        $rulePriceCollection = Mage::getResourceModel('catalogrule/rule_product_price_collection')
            ->addFieldToFilter('website_id', $websiteId)
            ->addFieldToFilter('customer_group_id', $custGroup)
            ->addFieldToFilter('rule_date', $todayDate)
        ;
//echo $rulePriceCollection->getSelect();
        $productIds = $rulePriceCollection->getProductIds();

        if (!empty($productIds)) {
            $specials->getSelect()->orWhere('e.entity_id in ('.implode(',',$productIds).')');
        }

        /*
        *need to put status and visibility after orWhere clause for catalog price rule products
        */
        Mage::getSingleton('catalog/product_status')->addVisibleFilterToCollection($specials);
        Mage::getSingleton('catalog/product_visibility')->addVisibleInCatalogFilterToCollection($specials);


//echo $specials->getSelect();

        $newurl = Mage::getUrl('rss/catalog/new');
        $title = Mage::helper('rss')->__('%s - Special Discounts', Mage::app()->getStore()->getName());
        $lang = Mage::getStoreConfig('general/locale/code');

        $rssObj = Mage::getModel('rss/rss');
        $data = array('title' => $title,
                'description' => $title,
                'link'        => $newurl,
                'charset'     => 'UTF-8',
                'language'    => $lang
                );
        $rssObj->_addHeader($data);

        $results = array();
        /*
        using resource iterator to load the data one by one
        instead of loading all at the same time. loading all data at the same time can cause the big memory allocation.
        */
        Mage::getSingleton('core/resource_iterator')
            ->walk($specials->getSelect(), array(array($this, 'addSpecialXmlCallback')), array('rssObj'=> $rssObj, 'results'=> &$results));

        if(sizeof($results)>0){
           usort($results, array(&$this, 'sortByStartDate'));
           foreach($results as $result){
               $product->setData($result);
               //$product->unsetData()->load($result['entity_id']);

               $special_price = ($result['use_special'] ? $result['special_price'] : $result['rule_price']);
               $description = '<table><tr>'.
                '<td><a href="'.$product->getProductUrl().'"><img src="'. $this->helper('catalog/image')->init($product, 'thumbnail')->resize(75, 75) .'" border="0" align="left" height="75" width="75"></a></td>'.
                '<td  style="text-decoration:none;">'.$product->getDescription().
                '<p> Price:'.Mage::helper('core')->currency($product->getPrice()).
                ' Special Price:'. Mage::helper('core')->currency($special_price).
                ($result['use_special'] && $result['special_to_date'] ? '<br/> Special Expires on: '.$this->formatDate($result['special_to_date'], Mage_Core_Model_Locale::FORMAT_TYPE_MEDIUM) : '').
                '</p>'.
                '</td>'.
                '</tr></table>';
                $data = array(
                        'title'         => $product->getName(),
                        'link'          => $product->getProductUrl(),
                        'description'   => $description,

                        );
                $rssObj->_addEntry($data);
           }
        }
        return $rssObj->createRssXml();
    }

addSpecialXmlCallback

(

$

args

)

Definition at line 142 of file Special.php.

    {
//echo "<pre>";
//print_r($args['row']);
       $row = $args['row'];
       $special_price = $row['special_price'];
       $rule_price = $row['rule_price'];
       if (!$rule_price || ($rule_price && $special_price && $special_price<=$rule_price)) {
           $row['start_date'] = $row['special_from_date'];
           $row['use_special'] = true;
       } else {
           $row['start_date'] = $row['rule_start_date'];
           $row['use_special'] = false;
       }
       $args['results'][] = $row;
    }

sortByStartDate	(	$	a,
		$	b
	)

Function for comparing two items in collection

Parameters:

	Varien_Object	$item1
	Varien_Object	$item2

Returns:

boolean

Definition at line 167 of file Special.php.

    {
        return $a['start_date']>$b['start_date'] ? -1 : ($a['start_date']<$b['start_date'] ? 1 : 0);
    }

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The documentation for this class was generated from the following file:

• app/code/core/Mage/Rss/Block/Catalog/Special.php