Book Image

Practical Module development for Prestashop 8

By : Louis AUTHIE
Book Image

Practical Module development for Prestashop 8

By: Louis AUTHIE

Overview of this book

After version 1.7, PrestaShop underwent a host of changes, including migration to a Symfony-based system from an outdated legacy code. This migration brought about significant changes for developers, from routine maintenance to module development. Practical Module Development for PrestaShop 8 is curated to help you explore the system architecture, including migrated and non-migrated controllers, with a concise data structure overview. You’ll understand how hooks enable module customization and optimize the CMS. Through the creation of seven modules, you’ll learn about the structure of modules, hook registration, the creation of front-office controllers, and Symfony back-office controllers. By using Doctrine entities, services, CQRS, grids, and forms, you’ll be guided through the creation of standard, payment and carrier modules. Additionally, you'll customize and override themes to achieve your desired e-commerce store look. By the end of this book, you’ll be well equipped to provide modern solutions with PrestaShop that meet client requirements.
Table of Contents (23 chapters)
1
Part 1 – Understanding How PrestaShop is Structured and How It Works
8
Part 2 – How to Create Your Own Modules
16
Part 3 – Customizing Your Theme
Appendix – Module Upgrade, The Hooks Discovery Tool, and Multi-Store Functions

The Dispatcher class

As seen in the previous reverse engineering example, there are two main tools to manage the controller’s routing: for the legacy FO and BO core classes, it is the Dispatcher class, and for the Symfony migrated controllers, it is the Symfony router.

As Symfony routing is already well documented on the Symfony website at the following address: https://symfony.com/doc/4.4/routing.html, we will not provide more explanations about it. Even if it is going to sadly disappear once the migration is finished, the Dispatcher routing class requires more explanation.

Let’s continue the reverse engineering, with the product category front controller already presented at the beginning of the chapter.

We will now focus on the use of Dispatcher::getInstance()->dispatch(); in /index.php.

The getInstance() static function instantiates the Dispatcher object with the request information injected as an argument.

The _construct() method checks whether...