Drupal 8 Module Development by Daniel Sipos

Key FeaturesUnleash the power of Drupal 8 programming by creating efficient modules and extensionsExplore a plethora of Drupal 8 APIs and get the best out of them using the power of PHP codingLearn to implement efficient data management and data security by creating dedicated modules for it.Book DescriptionDrupal is an open source web-based content management system (CMS) that can be used for building anything from simple websites to complex applications. It enables individuals and organizations to build platforms that engage users and deliver the right content at the right time.Drupal 8 is an exciting new development in the Drupal community. However, the differences from the previous version are substantial and this can put quite some pressure on Drupal 7 developers that need to catch up. This book aims to help such developers in getting up to speed with Drupal 8 module development.The book first introduces you to the Drupal 8 architecture and its subsystems before diving into creating your first module with basic functionality. Building upon that, you will cover many core APIs and functionalities available to module developers.You will work with the Drupal logging and mailing systems, learn how to output data using the theme layer and work with menus and links programmatically. Then, you will learn how to work with different kinds of data storages, create custom entities, field types and leverage the Database API for lower level database queries. Moreover, you will learn about the Drupal 8 access system and caching layer as well as the APIs used for data processing (queues and batches).You will further see how to introduce javascript into your module, work with the various file systems and ensure the code you write works on multilingual sites. Finally, you will learn how to programmatically work with Views, write automated tests for your functionality and also write secure code in general.By the end of the book, you will have learned how to develop your own custom module from scratch that can help solve a small problem or even provide complex functionality. And who knows, maybe youll even contribute it back to the Drupal community.What you will learnWrite a Drupal 8 module with custom functionality and hook into various extension pointsMaster numerous Drupal 8 sub-systems and APIsModel, store, and manipulate data in various ways and for various purposesDisplay data and content in a presentable and secure wayLearn about the theme system and render arraysAbout the AuthorDaniel Sipos is a senior web developer specializing in Drupal. Hes been working with Drupal sites since version 6 and started out like many others, as a site builder. Hes a self-taught programmer with many years experience working professionally on complex Drupal 7 and 8 projects. In his spare time, he runs webomelette, a Drupal website where he writes technical articles, tips, and techniques related to Drupal development.Table of ContentsDeveloping for Drupal 8Creating Your First ModuleLogging and MailingThemingMenus and Menu LinksData Modeling and StorageYour Own Custom EntitiesDatabase APIYour Own Custom FieldsAccess ControlCachingJavaScript in DrupalMultilingualQueues and BatchesViewsWorking with Files and ImagesAutomated TestsAppendix: Security