Drupal Module Development & API Flashcards

In Drupal module development, what file declares a module's name, description, and package for the admin UI?

Answer: module_name.info.yml

The .info.yml file is required for every Drupal module and defines its human-readable name, description, type, core_version_requirement, and package.

Which Drupal API function is used to implement a hook that reacts after a node is saved?

Answer: hook_node_insert()

hook_node_insert() fires after a new node is saved to the database for the first time, while hook_node_update() fires on subsequent saves.

What is the Drupal service container used for in module development?

Answer: Managing dependency injection of reusable service objects

Drupal's service container (built on Symfony's DependencyInjection component) manages service instantiation and dependency injection throughout custom code.

Which Drupal class should a custom plugin implement to create a new Block plugin type?

Answer: \Drupal\Core\Block\BlockBase

Custom blocks extend BlockBase, which implements the BlockPluginInterface and provides build(), blockAccess(), and blockForm() scaffold methods.

In Drupal's routing system, what file defines URL paths and their corresponding controller classes?

Answer: module_name.routing.yml

Routes are defined in the module's .routing.yml file, mapping URL paths to controller methods and specifying access requirements.

What does the Drupal Entity API's EntityTypeManager service allow developers to do?

Answer: Load, query, create, and delete any entity type

EntityTypeManager provides handlers for loading, saving, deleting, and querying any entity type, replacing older entity_load() procedural functions.