Simplifying Drupal Commerce with Cart Events in Version 2.x
Deepesh Arora's blog post on LinkedIn introduces the features of the Drupal Commerce module version 2.x, focusing on cart-related events. The updated module reduces the number of hooks, replacing them with subscribable events defined in the commerce_cart module. These events include CART_EMPTY, CART_ENTITY_ADD, CART_ORDER_ITEM_ADD, CART_ORDER_ITEM_UPDATE, CART_ORDER_ITEM_REMOVE, and ORDER_ITEM_COMPARISON_FIELDS, each triggered under specific conditions.
Arora provides a detailed example of restricting certain SKUs from being added to the cart multiple times by creating a custom event subscriber. The example involves defining services in a YAML file and writing a CartEventSubscriber class to handle the event. This practical guide helps developers understand and implement custom functionalities using Drupal Commerce cart events.
For more details, visit Deepesh Arora's blog post on LinkedIn.

