Magento 2 - get special price of product by product id or sku

Question

I need to get the special price of a product by product Id or Sku. Let's say I have an existing product with Id '21' and Sku 'test-21'.

This information is provided in my custom block class, how can I get the special price of this product in mentioned custom class?

Answer 1

use Magento/Catalog/Model/ProductFactory to load product, and get price information from the model

Code is like:

$specialPrice = $this->productFactory()->create()->load($id)->getPriceInfo()->getPrice('special_price');

some reference about how to get product model in your custom module

use object manager: http://alanstorm.com/magento_2_object_manager_instance_objects/

use dependency injection: http://www.coolryan.com/magento/2016/01/27/dependency-injection-in-magento-2/

Normally dependency injection is recommended.

Answer 2

Use \Magento\Catalog\Model\ProductRepository class to get the special price of the product

protected $_productRepository;

public function __construct(
    ...      
    \Magento\Catalog\Model\ProductRepository $productRepository,
    ...
) {
    $this->_productRepository = $productRepository;
}

public function getSpecialPriceById($id)
{
    //$id = '21'; //Product ID
    $product = $this->_productRepository->getById($id);
    return $product->getSpecialPrice();
}

public function getSpecialPriceBySku($sku)
{   
    //$sku = 'test-21'; //Product Sku
    $product = $this->_productRepository->get($sku);
    return $product->getSpecialPrice();
}

Now you can get special price by

$id = '21';
$sku = 'test-21';
$this->getSpecialPriceById($id);
$this->getSpecialPriceBySku($sku);

Answer 3

Here I am sharing the script to get the configurable product with special price.

magento2 SQL Query get special price for the configurable product with associated products:-

SELECT e.sku,e.type_id, d1.value as price, d2.value as special_price from catalog_product_entity e LEFT JOIN catalog_product_entity_decimal d1 ON e.entity_id = d1.entity_id
AND d1.store_id = 0
AND d1.attribute_id =75
LEFT JOIN catalog_product_entity_decimal d2 ON e.entity_id = d2.entity_id
AND d2.store_id = 0
AND d2.attribute_id =76

Answer 4

May be there is a better way, for me this worked in (Magento 2.3)

$_product = $this->productloader->create()->load($productId);
$tierPrice = $_product->getTierPrice();

it returns

"tier_price":
    [
        {
            "price_id":"1",
            "website_id":"0",
            "all_groups":"0",
            "cust_group":"0",
            "price":85,
            "price_qty":"1.0000",
            "percentage_value":"15.00",
            "website_price":85
        },{
            "price_id":"2",
            "website_id":"0",
            "all_groups":"0",
            "cust_group":"1",
            "price":85,
            "price_qty":"1.0000",
            "percentage_value":"15.00",
            "website_price":85
        }
    ]

Settings in Magento Advanced Pricing: