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);

/**
 * Implements hook_form_FORM_ID_alter(): field_ui_field_edit_form.
 */
function hook_form_field_ui_field_edit_form_alter(&$form, $form_state) {
  $field_instance = $form['#instance'];
 
  $form['instance']['settings']['default_cardinality'] = array(
    '#type' => 'textfield',
    '#title' => t('Default cardinality'),
    '#default_value' => isset($field_instance['settings']['default_cardinality']) ? $field_instance['settings']['default_cardinality'] : 1,
    '#weight' => 10,