DrupalCon Los Angeles 2015: Decoupling Drupal modules into PHP libraries: a Commerce 2.x primer

This talk explores the reciprocal relationship between the Drupal and Symfony ecosystems, focusing on how Drupal can contribute back to Symfony. The speaker discusses the development of Commerce 2.x, emphasizing the creation of generic PHP libraries that address crucial eCommerce challenges such as price storage, discount handling, and address management. Key topics include the decoupling of functionalities suitable for external libraries, the impact on the Drupal codebase, and the translation between Drupal and Symfony concepts like Entity API and Doctrine. The session highlights common pitfalls and the benefits of investing in this collaborative approach, using the Commerce 2.x libraries as a reference throughout.