I have replicated Catalog New Products List in magento and added a category chooser field to it. How to filter new products using category id? app/code/[vendor]/Newproducts/Block/Product/Widget/NewWidget.php
/**
* New products widget
*/
class NewWidget extends \Magento\Catalog\Block\Product\NewProduct implements \Magento\Widget\Block\BlockInterface
{
/**
* Display products type - all products
*/
const DISPLAY_TYPE_ALL_PRODUCTS = 'all_products';
/**
* Display products type - new products
*/
const DISPLAY_TYPE_NEW_PRODUCTS = 'new_products';
/**
* Default value whether show pager or not
*/
const DEFAULT_SHOW_PAGER = false;
/**
* Default value for products per page
*/
const DEFAULT_PRODUCTS_PER_PAGE = 5;
/**
* Name of request parameter for page number value
*
* @deprecated
*/
const PAGE_VAR_NAME = 'np';
/**
* Instance of pager block
*
* @var \Magento\Catalog\Block\Product\Widget\Html\Pager
*/
protected $_pager;
/**
* @var \Magento\Framework\Serialize\Serializer\Json
*/
private $serializer;
/**
* NewWidget constructor.
*
* @param \Magento\Catalog\Block\Product\Context $context
* @param \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory
* @param \Magento\Catalog\Model\Product\Visibility $catalogProductVisibility
* @param \Magento\Framework\App\Http\Context $httpContext
* @param array $data
* @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
*/
public function __construct(
\Magento\Catalog\Block\Product\Context $context,
\Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory,
\Magento\Catalog\Model\Product\Visibility $catalogProductVisibility,
\Magento\Framework\App\Http\Context $httpContext,
array $data = [],
\Magento\Framework\Serialize\Serializer\Json $serializer = null
) {
parent::__construct(
$context,
$productCollectionFactory,
$catalogProductVisibility,
$httpContext,
$data
);
$this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
->get(\Magento\Framework\Serialize\Serializer\Json::class);
}
/**
* Product collection initialize process
*
* @return \Magento\Catalog\Model\ResourceModel\Product\Collection|Object|\Magento\Framework\Data\Collection
*/
protected function _getProductCollection()
{
switch ($this->getDisplayType()) {
case self::DISPLAY_TYPE_NEW_PRODUCTS:
$collection = parent::_getProductCollection()
->setPageSize($this->getPageSize())
->setCurPage($this->getCurrentPage());
break;
default:
$collection = $this->_getRecentlyAddedProductsCollection();
break;
}
return $collection;
}
/**
* Prepare collection for recent product list
*
* @return \Magento\Catalog\Model\ResourceModel\Product\Collection|Object|\Magento\Framework\Data\Collection
*/
protected function _getRecentlyAddedProductsCollection()
{
/** @var $collection \Magento\Catalog\Model\ResourceModel\Product\Collection */
$rootCat = $this->getData('parentcat');
$collection = $this->_productCollectionFactory->create();
$collection->setVisibility($this->_catalogProductVisibility->getVisibleInCatalogIds());
$collection = $this->_addProductAttributesAndPrices($collection)
->addIdFilter($rootCat)
->addStoreFilter()
->addAttributeToSort('created_at', 'desc')
->setPageSize($this->getPageSize())
->setCurPage($this->getCurrentPage());
return $collection;
}
/**
* Get number of current page based on query value
*
* @return int
*/
public function getCurrentPage()
{
return abs((int)$this->getRequest()->getParam($this->getData('page_var_name')));
}
/**
* Get key pieces for caching block content
*
* @return array
*/
public function getCacheKeyInfo()
{
return array_merge(
parent::getCacheKeyInfo(),
[
$this->getDisplayType(),
$this->getProductsPerPage(),
intval($this->getRequest()->getParam($this->getData('page_var_name'), 1)),
$this->serializer->serialize($this->getRequest()->getParams())
]
);
}
/**
* Retrieve display type for products
*
* @return string
*/
public function getDisplayType()
{
if (!$this->hasData('display_type')) {
$this->setData('display_type', self::DISPLAY_TYPE_ALL_PRODUCTS);
}
return $this->getData('display_type');
}
/**
* Retrieve category id
*
* @return product collection
*/
public function getCategoryId()
{
$rootCat = $this->getData('parentcat');
$category = $this->_categoryFactory->create();
$collection = $category
->getCollection()
->addIdFilter($rootCat);
return $collection;
}
/**
* Retrieve block type
*
* @return string
*/
public function getMainTitle()
{
$mainTitle = $this->getData('blocktitle');
return $mainTitle;
}
/**
* Retrieve how many products should be displayed
*
* @return int
*/
public function getProductsCount()
{
if (!$this->hasData('products_count')) {
return parent::getProductsCount();
}
return $this->getData('products_count');
}
/**
* Retrieve how many products should be displayed
*
* @return int
*/
public function getProductsPerPage()
{
if (!$this->hasData('products_per_page')) {
$this->setData('products_per_page', self::DEFAULT_PRODUCTS_PER_PAGE);
}
return $this->getData('products_per_page');
}
/**
* Return flag whether pager need to be shown or not
*
* @return bool
*/
public function showPager()
{
if (!$this->hasData('show_pager')) {
$this->setData('show_pager', self::DEFAULT_SHOW_PAGER);
}
return (bool)$this->getData('show_pager');
}
/**
* Retrieve how many products should be displayed on page
*
* @return int
*/
protected function getPageSize()
{
return $this->showPager() ? $this->getProductsPerPage() : $this->getProductsCount();
}
/**
* Render pagination HTML
*
* @return string
*/
public function getPagerHtml()
{
if ($this->showPager()) {
if (!$this->_pager) {
$this->_pager = $this->getLayout()->createBlock(
\Magento\Catalog\Block\Product\Widget\Html\Pager::class,
'widget.new.product.list.pager'
);
$this->_pager->setUseContainer(true)
->setShowAmounts(true)
->setShowPerPage(false)
->setPageVarName($this->getData('page_var_name'))
->setLimit($this->getProductsPerPage())
->setTotalLimit($this->getProductsCount())
->setCollection($this->getProductCollection());
}
if ($this->_pager instanceof \Magento\Framework\View\Element\AbstractBlock) {
return $this->_pager->toHtml();
}
}
return '';
}
/**
* Return HTML block with price
*
* @param \Magento\Catalog\Model\Product $product
* @param string $priceType
* @param string $renderZone
* @param array $arguments
* @return string
* @SuppressWarnings(PHPMD.NPathComplexity)
*/
public function getProductPriceHtml(
\Magento\Catalog\Model\Product $product,
$priceType = null,
$renderZone = \Magento\Framework\Pricing\Render::ZONE_ITEM_LIST,
array $arguments = []
) {
if (!isset($arguments['zone'])) {
$arguments['zone'] = $renderZone;
}
$arguments['zone'] = isset($arguments['zone'])
? $arguments['zone']
: $renderZone;
$arguments['price_id'] = isset($arguments['price_id'])
? $arguments['price_id']
: 'old-price-' . $product->getId() . '-' . $priceType;
$arguments['include_container'] = isset($arguments['include_container'])
? $arguments['include_container']
: true;
$arguments['display_minimal_price'] = isset($arguments['display_minimal_price'])
? $arguments['display_minimal_price']
: true;
/** @var \Magento\Framework\Pricing\Render $priceRender */
$priceRender = $this->getLayout()->getBlock('product.price.render.default');
$price = '';
if ($priceRender) {
$price = $priceRender->render(
\Magento\Catalog\Pricing\Price\FinalPrice::PRICE_CODE,
$product,
$arguments
);
}
return $price;
}
}
