Otdfbt

Magento version 2.3

I want to show a particular category in shopping cart page using programming, instead of using backend widget settings.

I have tried to modify the following files with no luck:

Magento_Checkout/layout/checkout_cart_index.xml

<block type="catalog/product_list" category_id="4" template="catalog/product/list.phtml" />

which returns error, it says that block cannot set type attribute

source

Magento_Checkout/templates/cart.phtml

if ($block->getItemsCount()) 
 echo $block->getChildHtml('with-items');
 $this->getLayout()->createBlock('catalog/product_list')
 ->setData('category_id','$YourCategoryId')
 ->setTemplate('catalog/product/list.phtml')->toHtml(); 
 else 
 echo $block->getChildHtml('no-items');

returns error code 500

source

Try below code in your

Magento_Checkout/layout/checkout_cart_index.xml

<block type="MagentoCatalogBlockProductListProduct" category_id="4" template="catalog/product/list.phtml" />

Magento_Checkout/templates/cart.phtml:

$YourCategoryId = $this->getData("category_id");
if ($block->getItemsCount()) 
 echo $block->getChildHtml('with-items');
 $this->getLayout()->createBlock('catalog/product_list')
 ->setData('category_id',$YourCategoryId)
 ->setTemplate('catalog/product/list.phtml')->toHtml(); 
 else 
 echo $block->getChildHtml('no-items');

In addition to display the specific category wise products on Cart page,
you need to include following code

vendor/magento/module-checkout/view/frontend/layout/checkout_cart_index.xml (Override the module as per your convinience)

<block class="MagentoCatalogBlockProductListProduct" name="category.products.list" template="Magento_Catalog::product/list.phtml">
 <arguments> 
 <argument name="category_id" xsi:type="number">3</argument>
 </arguments>
 </block>

Note :

1. In Above code we have reused the default product list template, you can Create the separate template for that and modify the code accordingly.


2. In Above code "3" is the category id, Change the category id as per your requirement.

I suggest you create a Wiget to add product list with a category on Shopping Cart this option without using any custom

Update 2
I follow your activity I got you are using Magento 2 CMS, but you are using Block type and code style of Magento 1. which this option you should use.
MagentoCatalogBlockProductListProduct instead of catalogproduct_list

<block class="MagentoCatalogBlockProductListProduct" name="category.products.list" as="product_list" template="Magento_Catalog::product/list.phtml">
<action method="setToolbarBlockName">
 <argument name="category_id" xsi:type="number">[category id]</argument>
</action>
</block>

If you need to customer order product collection by own. You need to create new Block extends MagentoCatalogBlockProductListProduct
and custom _getProductCollection function.

New Block XML

<block class="NamespaceModuleNameBlockProductListProduct" name="category.products.list" as="product_list" template="Magento_Catalog::product/list.phtml">
 <action method="setToolbarBlockName">
 <argument name="category_id" xsi:type="number">[category id]</argument>
 </action>
 </block>

NamespaceModuleNameBlockProductListProduct

protected function _getProductCollection()

 if ($this->_productCollection === null) 
 $this->_productCollection = $this->initializeProductCollection();
 $this->_productCollection->setOrder('[attribute code]', 'desc');
 

 return $this->_productCollection;