Magento 2 - Filter product / customer using search criteria #magento2 #product #search #customer

ProductCustomer.php

<?php 

namespace  Namespace\MyModule\Block

use Magento\Customer\Api\CustomerRepositoryInterface;
use Magento\Customer\Api\Data\CustomerInterface;
use Magento\Framework\Api\SearchCriteriaBuilder;
use Magento\Framework\View\Element\Template;

class useCriteria extends Template 
{

  /**
   * useCriteria constructor.
   * @param CustomerRepositoryInterface $customerRepository
   * @param SearchCriteriaBuilder $searchCriteriaBuilder
   */
  public function __construct(
    CustomerRepositoryInterface $customerRepository,
    SearchCriteriaBuilder $searchCriteriaBuilder
  ) {
    $this->customerRepository = $customerRepository
    $this->searchCriteriaBuilder = $searchCriteriaBuilder
  }
  
  /**
   * Return CustomerInterface | null
   */
  public function getSpecificCustomer() {
  
    $email = 'foocustomer@gmail.com';
    $websiteId = 2;
    
    $searchCriteria = $this->searchCriteriaBuilder
            ->addFilter('email', $email, 'eq')
            ->addFilter('website_id', $websiteId, 'eq')
            ->create();
    
    $customerCollection = $this->customerRepository->getList($searchCriteria);
    $customer = $customerCollection->getFirstItem();
    
    return !!$customer->getId() !== false ? $customer : null;
  }
}

ProductFilter.php

<?php
namespace MyNamespace\MyModule\Model;

use Magento\Framework\Api\SearchCriteriaBuilder;
use Magento\Catalog\Api\ProductRepositoryInterface;

class ProductFilter
{
    /** @var ProductRepositoryInterface */
    protected $productRepository;

    /** @var SearchCriteriaBuilder */
    protected $searchCriteriaBuilder;

    /**
     * Initialize dependencies.
     *
     * @param ProductRepositoryInterface $productRepository
     * @param SearchCriteriaBuilder $searchCriteriaBuilder
     */
    public function __construct(
        ProductRepositoryInterface $productRepository,
        SearchCriteriaBuilder $searchCriteriaBuilder
    ) {
        $this->productRepository = $productRepository;
        $this->searchCriteriaBuilder = $searchCriteriaBuilder;
    }

    /**
     * Get products with filter.
     * 
     * @param string $fieldName
     * @param string $fieldValue
     * @param string $filterType
     * @return \Magento\Catalog\Api\Data\ProductInterface[]
     */
    public function getProducts($fieldName, $fieldValue, $filterType)
    {
        $searchCriteria = $this->searchCriteriaBuilder->addFilter($fieldName, $fieldValue, $filterType)->create();
        $products = $this->productRepository->getList($searchCriteria);
        return $products->getItems();
    }
}