<div class="contextual-links-region">
  <?php
  if ($GLOBALS['user']->uid == 1) {
    $contextual_links = array(
      '#type' => 'contextual_links',
      '#links' => array(
        array(
          'title' => t('Configure'),
          'href' => 'admin/config/system/site-information',
        ),
      ),
      '#pre_render' => array(),
    );
    echo drupal_render($contextual_links);
  }
  ?>
 
  Block content...
</div>

services:
  modulename.subscriber:
    class: Drupal\modulename\EventSubscriber\ModulenameSubscriber
    tags:
      - { name: event_subscriber }

<?php
 
namespace Drupal\modulename\EventSubscriber;
 
use Symfony\Component\HttpKernel\KernelEvents;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

/**
 * Implements hook_module_implements_alter().
 */
function hook_module_implements_alter(&$implementations, $hook) {
  if ($hook == 'node_load' && isset($implementations['user'])) {
    unset($implementations['user']);
  }
}

/**
 * Implements hook_schema_alter().
 */
function modulename_schema_alter(&$schema) {
  $entity_table = 'taxonomy_term_data';
  $property_name = 'myproperty';
 
  if (isset($schema[$entity_table]) && !isset($schema[$entity_table]['fields'][$property_name])) {
    $schema[$entity_table]['fields'][$property_name] = array(
      'type' => 'varchar',
      'length' => 255,
      'not null' => TRUE,

$product_id = 123;
$quantity = 1;
$combine = TRUE;
 
// Простой вариант
$line_item = commerce_cart_product_add_by_id($product_id, $quantity, $combine, $GLOBALS['user']->uid);
 
// Развёрнутый вариант
$product = commerce_product_load($product_id);
$line_item = commerce_product_line_item_new($product, $quantity);
$line_item = commerce_cart_product_add($GLOBALS['user']->uid, $line_item, $combine);